BIOGRAPHICAL SKETCH

Ray J. Weldon II

Department of Earth Sciences, University of Oregon, Eugene, OR, 97403-1272 

Tel. 541-346-4584 • Cel. 541-510-4270 • ray@uoregon.edu

Professional Preparation: 

Ph.D. (Advisor: K. Sieh), Geology, 1986, California Institute of Technology, Pasadena, CA [The late Cenozoic geology of Cajon Pass; Implications for tectonics and sedimentation along the San Andreas Fault, CA]

B.A. (cum laude), Geology, 1977, Pomona College, Claremont, CA [Metasomatism and mineral zonation of the Crestmore Quarry Skarn, Riverside, CA]

Professional Appointments (complete since 1986): 

TRP Professor, University of Oregon (2019-present)

Director, University of Oregon Summer Field Camp (2017- present)

“Wise Heads” Advisory Group (voted by other Dept Heads to advise Dean, 2012-13)

Department Head, Geological Sciences, University of Oregon (2010-3)

Intermittent Department roles including Field Camp Director, Majors Advisor, etc (1988-2010)

Professor, Structural Geology and Neotectonics, University of Oregon (2000-2018)

Associate Professor 1993-9, Assistant Professor 1988-93 (University of Oregon)

Research Geologist, US Geological Survey, Earthquake Office, Menlo Park (1986-1988)

Visiting Professor, Earth Observatory of Singapore (2015-18), UCLA (2008), Chulalongkorn

University, Thailand (1997), Jussieu, Paris VII, & Orsay, Paris-Sud, France (1993-4), and

Universidad Nacional Autonoma de Mexico (1994); Instructor, Occidental College 1985-1986)

Affiliations, Awards, Advisory and Honorary Appointments (complete since 2005): 

USGS National Seismic Hazard Map Advisory Committees (2011-present; 2013 “Tiger Team” subcommittee for integration of UCERF3; Formalized Steering Committee 2013-present)

Working Group on California Earthquake Probabilities and Uniform California Earthquake Rupture Forecast

(UCERF) Executive Committee (UCERF1-3; 2005-present; slated to head Science Review panel for UCERF4)

PG&E Seismic Advisory Panel, Pit River Dams project (2011-present)

Advisor to LA Metropolitan Water District (Colorado River Aqueduct), via GeoPentech (2013-5)

USGS National Earthquake Hazard Reduction Panels (intermittently 1989-present)

Lead, Technical Integration Team, SONGS SSHAC (level 3) NRC relicensing, via GeoPentech (2011-3)

Advisor for California Dept. of Water Resources Cedar Springs Dam re-evaluation (2011-3)

Organizing Committee Portland 2010 Seismological Society of America Meeting

Yucca Mountain National Waste Repository Extreme Ground Motion Project Review Panel (2010)

PG&E Seismic Advisory Panel, Diablo Canyon Nuclear Power Plant (2008-2011)

Advisory Panel, Panama Canal Authority (2008-9); Alaska Natural Gas Pipeline Project (2007-9)

USGS National Earthquake Prediction Evaluation Council (NEPEC) (1989-1994, 2005)

Panel Member, NSF International Partnerships (2005-6), Continental Dynamics (1996-2001)

Presidential Young Investigator Award from NSF (Presented by President Bush in 1990)

University of Oregon Research Innovation Award (2009)

Member of Geological Society of America, American Geophysical Union, Seismological Society of America, Sigma XI, AOGS, and AAAS (all intermittently over past 35+ years)

Current Research: 

Paleoseismology, conditional probabilities and seismic hazard of ground-rupturing earthquakes. Slip rate, structure, kinematics, and evolution of faults and complex continental plate boundaries; currently working in Oregon, California, Asia (China, Kyrgyzstan), and SE Asia (Myanmar, Yunnan, and Thailand). Integrating modern geodesy, historical leveling and tidal records to map strain accumulation and relative sea level change, recently applied to Washington Coastal Resilience project on the Cascadia subduction zone. 

Current Teaching: 

Organize and Teach in Field Camp/Schools in Oregon (Summer) and SE Asia (Winter)

Recent Teaching: 

Structural Geology, Geology of Oregon and Pacific Northwest, Neotectonics and Quaternary Geology, Surveying for Earth and Environmental Scientists, Intro Field Methods, Advanced Structural Geology, Geologic Hazards, Field Camp/Schools in Thailand (1997, 2017, 2019), Myanmar (2016, 2017, 2018) and Kyrgyzstan (2001-2007, 2020) and misc. advanced topical seminars.

Current Funding: 

1) Characterizing Bishkek's seismic hazard as a training exercise for Central Asian and American students and educators, Central Asia University Partnerships Program (UniCEN) - $22,500

2) Geological Sample Analysis for SE Asia - $110,339 (from Nanyang Technological University, Singapore).

Recent Funding: 

1) Improving Risk Communication and Leveraging Existing Programs in Washington State to Build Capacity and Enhance Resilience in Coastal Communities - $879,255 (NOAA, plus UW match, Washington SeaGrant; Lead PI: Miller at UW; this grant lives at UW but has supported Weldon Grad student Tyler Newton for 2 terms).

2) Seismic behavior of the Xiaojiang fault, southwestern China, and its implication to seismic hazard (AXA Research Fund, 130K Euros + NTU 65K Euros Co-Fund; lead PI: Shi at EOS, where this grant lives).

3) Cajon Pass Earthquake Gate Area: Active fault mapping and evaluation of potential sites to measure the Holocene slip rate along the Glen Helen and San Jacinto faults in the Cajon Pass area. (SCEC; Lead PI: Nate Onderdonk, Cal State Long Beach, where this grant lives).

4) Extending the Earthquake Record on the Southern Santa Cruz Mtns Segment of the San Andreas Fault –$52,715 (USGS-NEHRP).

5) Seismic Behavior of Sinistral Strike-slip Faults of the Shan Plateau – S$191,623 (Earth Observatory of Singapore (EOS); lead PI: Shi at EOS).

6) Earthquake Geology of Myanmar and Surrounding Areas - S$201,759 (EOS; lead PI: Wang Yu at EOS)

7) Singapore-WiscAr Partnership (SWAP) - S$100,653 (EOS; lead PI: Herrin at EOS).

Recent Public Outreach: 

2 OMSI (Oregon Museum of Science and Industry) “Science Pub” Public Lectures (PL) on Earthquake Hazards and Sea Level Rise, Eugene Rotary Club PL, NWEA (NW Energy Association) PL, Viking Lander exhibit at Corvallis Makers Fair, Annual SE Asia Paleoseismology Training Courses – funded by EOS, Sloan Foundation, and local Geological Surveys – e.g. February 2017, in Myanmar and Thailand, had 68 participants from 11 countries for 2 weeks), 2 Eugene City Club Live (KLCC/NPR) Public Discussions (most recent May 19 th , 2017).

Recent Significant Collaborators: 

K. Abdrakhmatov, S. Bemis, G. Biasi, R. Burgette, T. Dawson, N. Field, T. Fumal, S. Hopkins, G. Humphreys, J. Liu, C. Madden, S. McGill, I. Miller, T. Rockwell, M. Rymer, K. Scharer, D. Schmidt, X. Shi, K. Sieh, A. Streig, E. (LiLi) Weldon, Y. Wang, T. Wang, W. Wiwegwin, C. Wills, X. Wen.

Graduated Students (alphabetical; BS Thesis students not listed): 

S. Alba (MS), L. Austin (MS), S. Bemis (PhD), G. Biasi (PhD), J. Boley (MS), R. Burgette (PhD), R. Foxx (MS), M. Hemphill-Haley (PhD), M. Kenny (PhD), R. Langridge (PhD), W. Liu (PhD at Caltech-coadvised), C. Mitchell (MS), K. Paulson (MS), S. Perry (MS), S. Pezzopane (PhD), B. Philibosian (MS), T. Powers (MS), K. Scharer (PhD), G. Seitz (PhD), J. Sheridan (PhD), J. Stimac (PhD), A. Streig (PhD), S. Thompson (PhD at UW-coadvised), A. Treerotchananon (MS), P. Vincent (MS), D. Winston (MS at USC-coadvised), R. Witter (PhD-coadvised).

Publications: Google Scholar Profile (complete since 2008, selected previous):

F Li, X Cheng, H Chen, X Shi, Y Li, J Charreau, R Weldon, 2023, Cenozoic shortening and propagation in the Eastern Kuqa fold‐and‐thrust belt, South Tian Shan, NW China

B Philibosian, T Fumal, R Weldon, 2022, Erratum to San Andreas Fault Earthquake Chronology and Lake Cahuilla History at Coachella, California

Elaine K Young, Eric Cowgill, Katherine M Scharer, Emery O Anderson‐Merritt, Amanda Keen‐Zebert, Ray J Weldon, 2021,  Late Holocene slip rate of the Mojave section of the San Andreas fault near Palmdale, California

Sally F McGill, Lewis A Owen, Ray J Weldon, Katherine J Kendrick, Reed J Burgette, 2021, Latest Quaternary slip rates of the San Bernardino strand of the San Andreas fault, southern California, from Cajon Creek to Badger Canyon

Anne E Egger, Daniel E Ibarra, Ray Weldon, Robert M Langridge, Brian Marion, Jennifer Hall, 2021, Influence of pluvial lake cycles on earthquake recurrence in the northwestern Basin and Range, USA

Tyler J Newton, Ray Weldon, Ian M Miller, David Schmidt, Guillaume Mauger, Harriet Morgan, Eric Grossman, 2021, An assessment of vertical land movement to support coastal hazards planning in Washington state

TJ Newton, R Weldon, IM Miller, D Schmidt, G Mauger, H Morgan, E Grossman, 2021, An Assessment of Vertical Land Movement to Support Coastal Hazards Planning in Washington State. Water 2021, 13, 281

Weldon, R.J.II, Wen, X., Shi, X., Han, W., Li, T., in prep., Holocene Slip Rate of the Xianshuihe Fault, Eastern Tibet Plateau, Sichuan, China.

Patton, J.R., Williams, T.B., Anderson, J.K., Hemphill-Haley, M., McPherson, R., Leroy, T.H., Burgette, R.J., Weldon, R.J.II, Weis, K, in prep, Geodetic observations of vertical land motion along the southern Cascadia subduction zone; implications for strain accumulation in the North American plate and sea-level rise in coastal northern California.

McGill, S.F., Owen, L.A., Weldon, R.J.II, Kendrick, K.J., Kent, E., Burgette, R.J., 2021, Latest Quaternary slip rates of the San Bernardino strand of the San Andreas fault, southern California, from Cajon Creek to Badger Canyon. Geosphere (2021) 17 (5): 1354–1381

Liu, Z., Weldon R.J., Liu-Zeng, J., 2020, Modeling repeated coseismic slip to identify and characterize earthquakes from geomorphic offsets on strike slip faults.

W. Wiwegwin, S. Kosuwan, R. Weldon, P. Charusiri, S. Xuhua, Y. Gavillot, Z. Gianguo, 2020, Slip rate and recency of large paleoearthquake of sinistral active faults in Indochina region

Ashley R. Streig; Ray J. Weldon, II; Glenn Biasi; Timothy E. Dawson; Daniel G. Gavin; Tom P. Guilderson, 2020, New Insights into Paleoseismic Age Models on the Northern San Andreas fault: Charcoal in-built ages and updated earthquake correlations.

Wang, Y. ; Aung, L. T. ; Shi, X. ; Khaing, S. N. ; Weldon, E. M. ; Min, S. ; Dawson, T. E. ; Gavillot, Y. G. ; Meltzner, A. J. ; Weldon, R. J. ; Thant, M., 2019, The Short Rupture Interval of The Westernmost Nam Ma Fault in the Past Millennium

Shi, X. ; Fan, C. ; Figueiredo, P. ; Zheng, D. ; Yang, R. ; Almeida, R. V. ; Owen, L. A. ; Wang, E. ; Li, Z. ; Wang, G. ; Weldon, R. J. , 2019, Pleistocene rapid decrease in extensional exhumation of the Diancang Shan implies tectonic changes in SE Tibet

Ray Weldon, 2019, The Application of Collected Student Data for Determining Future Fossil Frequency and Its Implications for Future Field Surveys,  Geological Society of America Abstracts with Programs

Alba, S., Weldon, R.J.II, Livelybrooks, D., Schmidt, D.A., 2019, Cascadia ETS events seen in tidal records (1980-2011), Bulletin of the Seismological Society of America, Vol. 109, No. 2, pp. 812–821, doi: 10.1785/0120180218.

Jing Liu, Zhaode Yuan, Wei Wang, Ray Weldon II, Michael E Oskin, Yanxiu Shao, 2019, Paleoseismic recurrence on the geometrically simple section of the Altyn Tagh Fault, Northern Tibet.

Egger, A.E., Weldon, R.J.II, Langridge, R.M., Ibarra, D.E., Marion, B., Hall, J., 2018, The influence of pluvial lake cycles on earthquake recurrence in the northwestern Basin and Range, USA, edited by S.W. Starratt and M.R. Rosen, Geological Society of America, Special Paper 536.

Yuan, Z., Liu-Zeng, J., Wang. W., Weldon, R.J.II, Oskin, M.E., Shao, Y., Li, ZF., Li, ZG., Wang, P., Zhang, J., 2018, A 6000-Year-Long Paleoseismologic Record of Earthquakes on the Xorkoli Segment of the Central Altyn Tagh Fault, Xinjiang, China, Earth and Planetary Science Letters 497:193-20, DOI: 10.1016/j.epsl.2018.06.008.

Ian M Miller, Tyler Newton, Ray James Weldon, Guillaume S Mauger, David A Schmidt, Eric Grossman, Harriet Morgan, 2018, A multiple methods vertical land movement analysis to support sea level rise planning for Washington State

Shi, X., Sieh, K., Weldon R., Zhu, C., Han Y., Yang, J., Robinson S., 2018, Slip rate and rare large prehistoric earthquakes of the Red River fault, southwestern China, Geochemistry, Geophysics, Geosystems, doi:10.1029/2017GC007420.

Shi, X., Weldon R.J., Liu-Zeng, J., Wang Y., Sieh, K., Weldon E., Li, Z., Zhang J., 2018, Limit on slip rate and timing of ground-rupturing earthquakes of the Jinghong fault, SE of the eastern Himalayan syntaxis, Tectonophysics, 734-735, 148-166, DOI: 10.1016/j.tecto.2018.04.011

Shi, X., Wang Y., Sieh, K. Feng L., Weldon, R.J., Chan C.H., Liu J., 2018 , Fault slip and GPS velocities of the Shan Plateau define a curved southwestward crustal motion around the eastern Himalayan syntaxis, JGR-Solid Earth, https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2017JB015206

Wang, T., Wei, S., Shi, X., Qiu, Q., Li L., Peng D., Weldon, R., Barbot S. 2018, The 2016 Kaikōura earthquake: Simultaneous rupture of the subduction interface and overlying faults, Earth and Planetary Science Letters, 482, 44-51, doi: 10.1016/j.epsl.2017.10.056.

Ian M Miller, Harriet Morgan, Guillaume Mauger, Tyler Newton, Ray Weldon, David Schmidt, Mark Welch, Eric Grossman, 2018, Projected Sea Level Rise for Washington State: A 2018 Assessment

I Miller, T Newton, R Weldon, D Schmidt, G Mauger, E Grossman, 2018, A multiple-methods vertical land movement analysis and its integration into probabilistic sea level rise projections for coastal Washington

Scharer, K., R. Weldon II, G. Biasi, A. Streig, and T. Fumal, 2017, Ground-rupturing earthquakes on the northern Big Bend of the San Andreas Fault, California, 800 A.D. to Present, J. Geophys. Res. Solid Earth, 122, doi:10.1002/2016JB013606. 

Burgette, R.J., R.J. Weldon II, K.Y. Abdrakhmatov, C. Ormukov, L.A. Owen, S.C. Thompson, 2017, Timing and Process of River and Lake Terrace Formation in the Kyrgyz Tien Shan, Quaternary Science Reviews, 10.1016/j.quascirev.2017.01.003. 

Shi X., Wang Y., Liu-Zeng J., Weldon R., Shengji Wei, Teng Wang, Kerry Sieh, 2017, How complex is the 2016 Mw 7.8 Kaikoura earthquake, South Island, New Zealand? (Invited) News & Views, Science China Press

Curtiss, E. R., Weldon, R. J., Wiwegwin, W.,  Weldon, E. M., 2017,  Paleoseismology of Sinistral-Slip Fault System, Focusing on the Mae Chan Fault, on the Shan Plateau, SE Asia.

Field, E.H., T.H. Jordan, M.T. Page, K.R. Milner, B.E. Shaw, T.E. Dawson, G.P. Biasi, T. Parsons, J.L. Hardebeck, A.J. Michael, R.J. Weldon II, P.M. Powers, K.M. Johnson, Y.H. Zeng, P.Bird, K. R. Felzer, N. van der Elst, C. Madden, R. Arrowsmith, M.J. Werner, W.R. Thatcher, D.D. Jackson, 2017, A Synoptic View of the Third Uniform California Earthquake Rupture Forecast (UCERF3), Seismological Research Letters 88(5): 1259-1267, https://doi.org/10.1785/0220170045

K Scharer, R Weldon, G Biasi, A Streig, T Fumal, 2017, Ground-rupturing earthquakes on the northern Big Bend of the San Andreas Fault, California, 800 A.D. to Present Journal of Geophysical Research: Solid Earth 122 (3), 2193-2218

X Shi, Y Wang, J Liu-Zeng, R Weldon, S Wei, T Wang, K Sieh, 2017, How complex is the 2016 Mw 7.8 Kaikoura earthquake, South Island, New Zealand, Sci. Bull 62 (5), 309-311

Reed J Burgette, Ray J Weldon II, Kanatbek Ye Abdrakhmatov, Cholponbek Ormukov, Lewis A Owen, Stephen C Thompson, 2017, Timing and process of river and lake terrace formation in the Kyrgyz Tien Shan, Quaternary Science Reviews 159, 15-34

X Shi, RJ Weldon, J Liu-Zeng, K Sieh, Y Wang, Z Li, J Zhang, 2016, Millennial slip rates and paleoseismology of the Jinghong fault on the Shan Plateau, southeast of the eastern Himalayan syntaxis, AGU Fall Meeting Abstracts 2016, T13D-01

AE Egger, RJ Weldon, RM Langridge, DE Ibarra, B Marion, JM Hall, 2016, The influence of pluvial lake cycles on earthquake recurrence in the northwestern Basin and Range extensional province, Geological Society of America Annual Meeting, Denver, Colorado 

RD Krogstad, DA Schmidt, RJ Weldon, RJ Burgette, 2016,  Constraints on accumulated strain near the ETS zone along Cascadia, Earth and Planetary Science Letters 439, 109-116

KM Scharer, RJ Weldon, S Bemis, 2016, Testing geomorphology-derived rupture histories against the paleoseismic record of the southern San Andreas fault, 

Weldon, R., G. de Lamare, D. Yule, W. C. Hammond, A. Streig, A. Sarmiento, S.T. Freeman, J. Shamma, M. Beikae, A. Rodriguez, 2016, San Andreas Fault - South Branch Surface Deformation Modeling and Risk to the Colorado River Aqueduct, in Applied Geology in California, eds. R. Andreson & H. Ferriz, Association of Engineering Geologists (AEG) Special Publication 26, ISBN 978-0-89863-399-3.

Biasi, G., Scharer, K., Weldon, R., Dawson, T., 2016. Does paleoseismology forecast the historic rates of large earthquakes on the San Andreas fault system? 7th International INQUA Meeting on Paleoseismology, Active Tectonics, and Archeoseismology, 38-41.

Scharer, K., R. Weldon, S. Bemis, 2016, Testing Geomorphology-Derived Rupture Histories against the Paleoseismic Record of the Southern San Andreas fault, paper presented at the 7th International INQUA Meeting on Paleoseismology, Active Tectonics, and Archeoseismology, Crestone, Colo. 

SP Bemis, RJ Weldon, GA Carver, 2015, Slip partitioning along a continuously curved fault: Quaternary geologic controls on Denali fault system slip partitioning, growth of the Alaska Range, and the tectonics of south-central Alaska, Lithosphere 7 (3), 235-246

Edward H. Field; Glenn P. Biasi; Peter Bird; Timothy E. Dawson; Karen R. Felzer; David D. Jackson; Kaj M. Johnson; Thomas H. Jordan; Christopher Madden; Andrew J. Michael; Kevin R. Milner; Morgan T. Page; Tom Parsons; Peter M. Powers; Bruce E. Shaw; Wayne R. Thatcher; Ray J. Weldon, II; Yuehua Zeng, 2015, Long‐term time‐dependent probabilities for the third Uniform California Earthquake Rupture Forecast (UCERF3), Bulletin of the Seismological Society of America 105 (2A), 511-543

KM Scharer, TE Fumal, RJ Weldon, AR Streig, 2015, Photomosaics and Event Evidence from the Frazier Mountain Paleoseismic Site, Trench 1, Cuts 5-24, San Andreas Fault Zone, Southern California (2010-2012), US Department of the Interior, US Geological Survey

Bemis, S.P., Weldon, R.J., Carver, G.A., 2015, Slip partitioning along a continuously curved fault: Quaternary geologic controls on Denali fault system slip partitioning, growth of the Alaska Range, and the tectonics of south-central Alaska: Lithosphere, v. 7, n. 3, p. 235-246. doi: 10.1130/L352.1. 

Krogstad, R., Schmidt, D.A., Weldon, R.J.II, Burgette, R., 2015, Constraints on accumulated strain in the ETS zone along Cascadia, Earth and Planetary Science Letters. 

2014 Working Group on California Earthquake Probabilities (Field, E.H., T.H. Jordan, M.T. Page, K.R. Milner, B.E. Shaw, T.E. Dawson, G.P. Biasi, T. Parsons, J.L. Hardebeck, A.J. Michael, R.J. Weldon II, P.M. Powers, K.M. Johnson, Y.H. Zeng, P.Bird, K. R. Felzer, N. van der Elst, C. Madden, R. Arrowsmith, M.J. Werner, W.R. Thatcher, D.D. Jackson), 2015, UCERF3: A new earthquake forecast for California’s complex fault system: U.S. Geological Survey 2015–3009, 6 p., https://dx.doi.org/10.3133/fs20153009.

BH Mackey, SR Castonguay, PJ Wallace, RJ Weldon, 2014, Synchronous late Pleistocene extensional faulting and basaltic volcanism at Four Craters Lava Field, central Oregon, USA, Geosphere 10 (6), 1247-1254

K Scharer, R Weldon, A Streig, T Fumal, 2014, Paleoearthquakes at Frazier Mountain, California delimit extent and frequency of past San Andreas Fault ruptures along 1857 trace, Geophysical Research Letters 41 (13), 4527-4534

Edward H. Field; Ramon J. Arrowsmith; Glenn P. Biasi; Peter Bird; Timothy E. Dawson; Karen R. Felzer; David D. Jackson; Kaj M. Johnson; Thomas H. Jordan; Christopher Madden; Andrew J. Michael; Kevin R. Milner; Morgan T. Page; Tom Parsons; Peter M. Powers; Bruce E. Shaw; Wayne R. Thatcher; Ray J. Weldon, II; Yuehua Zeng, 2014, Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3)—The Time‐Independent Model, Bulletin of the Seismological Society of America 104 (3), 1122-1180

AR Streig, TE Dawson, RJ Weldon, 2014, Paleoseismic evidence of the 1890 and 1838 earthquakes on the Santa Cruz Mountains section of the San Andreas fault, near Corralitos, California, Bulletin of the Seismological Society of America 104 (1), 285-300

KM Scharer, TE Fumal, RJ Weldon, AR Streig, 2014, Photomosaics and event evidence from the Frazier Mountain paleoseismic site, Trench 1, Cuts 1–4, San Andreas Fault Zone, Southern California (2007-2009), U.S. Geol. Surv. Open File Rep., 2014-1002, 4 sheets, various scales, pamphlet 23 p. 

Field, E.H., Biasi, G.P., Bird, P., Dawson, T.E., Felzer, K.R., Jackson, D.D., Johnson, K.M., Jordan, T.H., Madden, C., Michael, A.J., Milner, K.R., Page, M.T., Parsons, T., Powers, P.M., Shaw, B.E., Thatcher, W.R., Weldon, R.J.II, and Zeng, Y. (authors alphabetical after 1st author Field), 2013, Uniform California Earthquake Rupture Forecast, version 3 (UCERF3)—The time-independent model: U.S. Geological Survey Open-File Report 2013–1165, 97 p., California Geological Survey Special Report 228, and Southern California Earthquake Center Publication 1792

Weldon, R.J.II, and Biasi, G.P., 2013, Probability of Detection of Ground Rupture at Paleoseismic Sites, (WGCEP14, UCERF3, Appendix I), U.S. Geological Survey Open-File Report 2013–1165-I, California Geological Survey Special Report 228-I, and Southern California Earthquake Center Publication 1792-I. [note - all UCERF3 Appendices went through 2 rounds of peer review] 

Weldon, R.J.II, Dawson, T.E., Biasi, G.P., Madden, C., and Streig, A.R., 2013, Paleoseismic Sites Recurrence Database, (WGCEP14, UCERF3, Appendix G), U.S. Geological Survey Open-File Report 2013–1165-G, California Geological Survey Special Report 228-G, and Southern California Earthquake Center Publication 1792-G. 

Weldon, R.J.II, Schmidt, D.A., Austin, L.J., Weldon, E.M., and Dawson, T.E., 2013 Compilation of Creep Rate Data for California Faults and Calculation of Moment Reduction due to Creep, (WGCEP14, UCERF3, Appendix D), U.S. Geological Survey Open-File Report 2013–1165-D, California Geological Survey Special Report 228-D, and Southern California Earthquake Center Publication 1792-D. 

Dawson, T.E., and Weldon, R.J.II, 2013, Geologic-Slip-Rate Data and Geologic Deformation Model, (WGCEP14, UCERF3, Appendix B), U.S. Geological Survey Open-File Report 2013–1165-B, California Geological Survey Special Report 228-B, and Southern California Earthquake Center Publication 1792-B. 

Biasi, G.P., Weldon, R.J.II, and Dawson, T.E., 2013, Distribution of Slip in Ruptures, (WGCEP14, UCERF3, Appendix F), U.S. Geological Survey Open-File Report 2013–1165-F, California Geological Survey Special Report 228-F, and Southern California Earthquake Center Publication 1792-F. 

Biasi, G.P., Parsons, T., Weldon, R.J.II, and Dawson, T.E., 2013, Fault-to-Fault Rupture Probabilities, (WGCEP14, UCERF3, Appendix J), U.S. Geological Survey Open-File Report 2013–1165-J, California Geological Survey Special Report 228-J, and Southern California Earthquake Center Publication 1792-J. 

Parsons, T., Johnson, K.M., Bird, P., Bormann, J., Dawson, T.E., Field, E.H., Hammond, H., Herring, T., McCaffrey, R., Shen, Z.K., Thatcher, W., Weldon, R.J.II, and Zeng, Y., 2013, Deformation Models for UCERF3, (WGCEP14, UCERF3, Appendix C), U.S. Geological Survey Open-File Report 2013– 1165-C, California Geological Survey Special Report 228-C, and Southern California Earthquake Center Publication 1792-C. 

Madden, C., Haddad, D.E., Salisbury, J.B., Zielke, O., Arrowsmith, J.R., Weldon, R.J.II, and Colunga, J., 2013, Compilation of Slip-in-the-Last Event Data and Analysis of Last Event, Repeated Slip, and Average Displacement for Recent and Prehistoric Ruptures (WGCEP14, UCERF3, Appendix R), U.S. Geological Survey Open-File Report 2013–1165-R, California Geological Survey Special Report 228R, and Southern California Earthquake Center Publication 1792-R. 

Bemis, S.P., Weldon, R.J.II, Thoms, E.E., Burns, P., and Owen, L.A., 2013, Quaternary geologic map of the Japan Hills – Gold King area, central Alaska: Identification of active thrust faults and related late Cenozoic deformation, Alaska Division of Geological & Geophysical Surveys, Preliminary Interpretive Report. 

McGill, S.F, Owen, L.A., Weldon, R.J.II, Kendrick, K.J., 2013, Latest Pleistocene and Holocene Slip Rate for the San Bernardino Strand of the San Andreas Fault, Plunge Creek Southern California: Implications for Strain Partitioning within the Southern San Andreas Fault System for the last ~35 ka, Geological Society of America, Bulletin, 125, p. 48-72 (doi: 10.1130/B30647.1). 

Gao, H.Y., Schmidt, D.A., and Weldon, R.J.II, 2012, Scaling relationships of source parameters for slow slip events, Bulletin of the Seismological Society of America, v. 102, No. 1, pp. 352–360, doi: 10.1785/0120110096. 

KM Scharer, GP Biasi, RJ Weldon, 2011, A reevaluation of the Pallett Creek earthquake chronology based on new AMS radiocarbon dates, San Andreas fault, California, Journal of Geophysical Research: Solid Earth 116 (B12)

G Biasi, RJ Weldon, K Scharer, MFA Audemard, AM Michetti, JP McCalpin, 2011, Rupture length and paleomagnitude estimates from point measurements of displacement—A model‐based approach, Geol. Soc. Am. Spec. Pap. 479, 195-204

Philibosian, B., Fumal, T.E., and Weldon, R.J.II, 2011, San Andreas Fault earthquake chronology and lake Cahuilla history at Coachella, California, Bulletin of the Seismological Society of America, v. 101, DOI: 10.1785/0120100050. 

Michael J Rymer, Jerome A Treiman, Katherine J Kendrick, James J Lienkaemper, Ray J Weldon, Roger Bilham, Meng Wei, Eric J Fielding, Janis L Hernandez, Brian PE Olson, Pamela J Irvine, Nichole Knepprath, Robert R Sickler, Xiaopeng Tong, Martin E Siem, 2011, Triggered surface slips in southern California associated with the 2010 El Mayor-Cucapah, Baja California, Mexico, earthquake

Абдрахматов, К.Е. Ормуков, Ч. Бургетте, Р. Уилдон Р., 2011, Деформация террас как отражение геометрии активных разломов Юго-Западного Прииссыккулья Изв.НАН КР, (Deformation of terraces as a reflection of geometry of active faults of South-West Issyk-Kul area, Review of National Academy of Science, #1,2011. K.E.Abdrakhmatov, Ch. Ormukov, R.Burgette, R.Weldon).

Scharer, K.M., Biasi, G.P., Weldon, R. J.II, and Fumal, T.E., 2010, Quasi-Periodic Recurrence of Large Earthquakes on the Southern San Andreas Fault, Geology, 38, 555-558. 

Behr, W.M., Rood, D.H., Fletcher, K.E., Guzman, N., Finkel, R., Hanks, T.C., Hudnut, K.W., Kendrick, K.J., Platt, J.P., Sharp, W.D., Weldon, R.J.II, and Yule, J.D., 2010, Uncertainties in slip rate estimates for the Mission Creek strand of the southern San Andreas fault at Biskra Palms Oasis, southern California, Geological Society of America, Bulletin, v. 122; no. 9/10; p. 1360–1377; doi: 10.1130/B30020.1. 

Michael J. Rymer, Jerome A. Treiman, Katherine J. Kendrick, James J. Lienkaemper, Ray J. Weldon, Roger Bilham, Meng Wei, Eric J. Fielding, Janis L. Hernandez, Brian P. E. Olson, Pamela J. Irvine, Nichole Knepprath, Robert R. Sickler, Xiaopeng Tong, and Martin E. Siem, 2010, Triggered Surface Slips in Southern California Associated with the 2010 El Mayor-Cucapah, Baja California, Mexico, Earthquake

Biasi, G., and Weldon, R.J.II, 2009, San Andreas fault rupture scenarios from multiple paleoseismic records: stringing pearls, Bulletin of the Seismological Society of America, v. 99; no. 2A; p. 471-498; DOI: 10.1785/0120080287. 

Burgette, R.J., Weldon, R.J.II, Schmidt, D.A, 2009, Interseismic uplift rates for western Oregon and along-strike variation in locking on the Cascadia subduction zone, Journal of Geophysical Research, v. 114, B01408, doi:10.1029/2008JB005679. 

McCalpin, J.P., Rockwell, T.K., and Weldon, R.J.II, 2009, Chapter 6: Paleoseismology of strike slip tectonic environments, in Paleoseismology, Second Edition, ed. McCalpin, J.P., v. 95 International Geophysics Series, p. 421-496, Elsevier Inc. 

Field, E.D., Dawson, T.E., Felzer, K.R., Frankel, A.D., Gupta, V., Jordan, T.H., Parsons, T., Petersen, M.D., Stein, R.S., Weldon, R.J.II, and Wills, C.J., (authorship alphabetical after Field), 2009, Uniform California earthquake rupture forecast, Version 2 (UCERF 2), Bulletin of the Seismological Society of America, v. 99, p. 2053-2107, DOI: 10.1785/0120080049. 

WGCEP (Working Group on California Earthquake Probabilities; Weldon was 1 of 5-member Executive Committee that wrote the report), 2008, The uniform California earthquake rupture forecast, Version 2 (UCERF 2): U.S. Geological Survey Open-File Report 2007-1437 & CGS Special Report 203. 

Philibosian, B., Fumal, T., Kendrick, K., Weldon, R., Scharer, K., Bemis, S., Burgette, R., and Wisely, B., 2009, Photomosaics and logs of trenches on the San Andreas fault near Coachella, California, U.S. Geological Survey Open-File Report 2009-1039. 

Weldon, R.J.II, Biasi, G.P., Wills, C.J., and Dawson, T.E., 2008, Overview of the southern San Andreas fault model; Appendix E, WGCEP (Working Group on California Earthquake Probabilities, 2007): U.S. Geological Survey Open-File Report 2007-1437E & CGS Special Report 203E. 

Wills, C.J., Weldon, R.J.II, and Bryant, W.A., 2008, California fault parameters for the National Seismic Hazard Map and Working Group on California Earthquake Probabilities 2007; Appendix A, WGCEP (Working Group on California Earthquake Probabilities, 2007): U.S. Geological Survey Open-File Report 2007-1437A & CGS Special Report 203A. 

Dawson, T.E., Weldon, R.J.II, and Biasi, G.P., 2008, Recurrence interval and event age data for Type A faults; Appendix B, WGCEP (Working Group on California Earthquake Probabilities, 2007): U.S. Geological Survey Open-File Report 2007-1437B & CGS Special Report 203B. 

Wills, C.J., Weldon, R.J.II, and Field. E.H., 2008, A-Priori rupture models for Northern California TypeA Faults; Appendix K, WGCEP (Working Group on California Earthquake Probabilities, 2007): U.S. Geological Survey Open-File Report 2007-1437K & CGS Special Report 203K 

Field. E.H., Weldon, R.J.II, Gupta, V., Parsons, T., Wills, C.J., Dawson, T.E., Stein, R.S., and M.D. Petersen, 2008, Development of final A-fault rupture models for WGCEP/NSHMP earthquake rate model 2.3; Appendix G, WGCEP (Working Group on California Earthquake Probabilities, 2007): U.S. Geological Survey Open-File Report 2007-1437G & CGS Special Report 203G. 

Wisely, B.A., Schmidt, D.A., and Weldon, R.J.II, 2008, Compilation of surface creep on California faults and comparison of WGCEP 2007 deformation models to Pacific-North America plate motion; Appendix P, WGCEP (Working Group on California Earthquake Probabilities, 2007): U.S. Geological Survey Open-File Report 2007-1437P & CGS Special Report 203P. 

Dawson, T.E., Rockwell, T.K., Weldon, R.J.II, and Wills, C.J., 2008, Summary of geologic data and development of A-Priori rupture models for the Elsinore, San Jacinto and Garlock faults; Appendix F, WGCEP (Working Group on California Earthquake Probabilities, 2007): U.S. Geological Survey Open-File Report 2007-1437F & CGS Special Report 203F.

Абдрахматов К.Е., Уилдон, Р., Бурбанк, Д., Томпсон, С., Буллен М., 2008, Внутриконтинентальное горообразование (Тянь-Шань) – Бишкек, Илим, 2008 ( Abdrakhmatov K.E., R.Weldon, D.Burbank, S.Thompson, M.Bullen. Intracontinental mountain building and seismic hazard (Tien Shan). Bishkek,Ilim, 2008.)  Глава 1. Стратиграфия кайнозойских отложений межгорных впадин Тянь-Шаня. Chapter 1- The stratigraphy of Cenozoic deposits of intermountain basins of Tien Shan.  Глава 3.  Особенности новейшей тектоники Тянь-Шаня. Chapter 3. -  Peculiarities of the newest tectonics of Tien Shan.

Selected Publications (1982-2007):

Weldon, R.J., Thomas, W.M., Boslough, M.B., Ahrens, T.J., 1982, Shock‐induced color changes in nontronite: Implications for the Martian fines, Journal of Geophysical Research: Solid Earth, 87 (B12), p. 10102-10114.

Clark, B.C., Baird, A.K., Weldon, R.J., Tsusaki, D.M., Schnabel, L., Candelaria, M.P., 1982, Chemical composition of Martian fines, Journal of Geophysical Research: Solid Earth, 87 (B12), p. 10059-10067.

Weldon, R.J., Sieh, K.E., 1985, Holocene rate of slip and tentative recurrence interval for large earthquakes on the San Andreas fault, Cajon Pass, southern California, Geological Society of America Bulletin, 96 (6), p. 793-812.

Weldon, R.J.II, Humphreys, E.D., 1986, A kinematic model of southern California, Tectonics, 5 (1), p. 33-48.

McFadden, L.D., Weldon, R.J.II, 1987, Rates and processes of soil development on Quaternary terraces in Cajon Pass, California, Geological Society of America Bulletin, 98 (3), p. 280-293.

Weldon, R.J.II, Springer, J.E., 1988, Active faulting near the Cajon Pass well, Southern California; Implications for the stress orientation near the San Andreas fault, Geophysical Research Letters, 15, p.993-996.

Reynolds, R.E., Weldon, R.J.II, 1988, Vertebrate paleontologic investigation, DOSECC Deep Hole project, Cajon Pass, San Bernardino County, Geophysical Research Letters, 15, p. 1073-1076.

Weldon, R.J.II, Humphreys, E.D., Namson, J., Davis, T., Yeats, R.S., Huftile, G.J., 1989, Comments and Replies on 'Structural transect of the western Transverse Ranges, California: Implications for lithospheric kinematics and seismic risk evaluation' Geology, 17 (8), p. 769–773.

Meisling, K.E., Weldon, R.J.II, 1989, Late Cenozoic tectonics of the northwestern San Bernardino Mountains, southern California, Geological Society of America Bulletin, 101 (1), p. 106-128.

Weldon, R.J.II, 1991, Active tectonic studies in the United States, 1987-1990, Reviews of Geophysics Supplement (U.S. National Report to the International Union of Geodesy and Geophysics), p. 890-906.

Humphreys, E.D., Weldon, R.J.II, 1991, Kinematic constraints on the rifting of Baja California; Chpt 12, in, Dauphin, J.P., Simonelt, B.R.T., eds., The Gulf and Peninsular Provinces of California, American Association of Petroleum Geologists, Memoir 47, p. 217-229.

Powell, R.E., Weldon, R.J.II, 1992, Evolution of the San Andreas fault, Annual Reviews of Earth and Planetary Sciences, v. 20, p. 431-468. 

Miller, M.G., Weldon, R.J.II, 1992, A lateral ramp origin for the north-trending segment of the Squaw Peak fault, Cajon Pass, California, Journal of Geophysical Research, v. 97, p. 5153-5165.

Weldon, R.J.II, Meisling, K.E., Alexander, J., 1993, A speculative history of the San Andreas fault in the Central Transverse Ranges, Chpt 3, in, Powell, R.E., Weldon, R.J.II, Matti, J., eds., The San Andreas fault system; displacement, palinspastic reconstruction and geologic evolution, Geological Society of America, Memoir 178, p. 161-178.

Fumal, T.E., Pezzopane, S.K., Weldon, R.J.II, Schwartz, D.P., 1993, A 100-year recurrence interval for the San Andreas fault at Wrightwood, CA, Science, v. 259, p.199-203.

Pezzopane, S.K., Weldon, R.J.II, 1993, Tectonic role of active faulting in central Oregon, Tectonics, 12 (5), p. 1140-1169.

Biasi, G., Weldon, R.J.II, 1994, Quantitative refinement of calibrated C-14 distributions, Quaternary Research, v.41, p.1-18.

Hager, B.H., Cornell, C.A., Medigovich, W.M., Mogi, K., Smith, R.M., Stock, J., Tobin, L.T., Weldon, R.J.II (authors alphabetical after Hager), 1994, Earthquake Research at Parkfield, California, for 1993 and Beyond - Report of the NEPEC Working Group to evaluate the Parkfield Earthquake Prediction Experiment, U.S. Geological Survey Circular 1116, 14 p.

Weldon, R.J.II, Sieh, K., Zhu, C., Han, Y., Yang, J., Robinson, S., 1994, Slip rate and recurrence interval of earthquakes on the Hong He (Red River) Fault, Yunnan, PRC, International Conference on Southeast Asian Tectonics, Hanoi, Vietnam, p. 244-248.

Humphreys, E.D., Weldon, R.J.II, 1994, Deformation across the Western US: A local estimate of Pacific-North America transform deformation, Journal of Geophysical Research, v. 99, p. 19975-20010.-5165.

Mitchell, C.E., Vincent, P., Weldon, R.J.II, Richards, M.A., 1994, Present‐day vertical deformation of the Cascadia margin, Pacific Northwest, United States, Journal of Geophysical Research: Solid Earth, 99 (B6), p. 12257-12277.

Palmer, Weldon, R.J.II, Humphreys, E.D., Saucier, F., 1995, Earthquake recurrence on the southern San Andreas modulated by fault-normal stress, Geophysical Research Letters, v.22, p. 535-538.

Weldon, R.J.II, McCalpin, J.P., Rockwell, T.K., 1996, Paleoseismology of strike-slip tectonic environments, Chpt 6, in, McCalpin, J.P., Nelson, A., eds., Techniques in Paleoseismology Academic Press, p. 271-329.

Seitz, G., Weldon, R.J.II, Biasi, G., 1997, The Pitman Canyon paleoseismic record: A re-evaluation of Southern San Andreas segmentation, in, Hancock, P.L., Michetti, A.M., eds., Paleoseismology: Understanding past earthquakes using Quaternary Geology, Academic Press, v. 24, p. 129-138.

Kenney, M.D., Weldon, R.J.II, 1999, Timing and magnitude of mid to late Quaternary uplift of the western San Bernardino and northeastern San Gabriel Mountains, southern California, in, Reynolds, R.E., Cox, B.F., eds., San Bernardino County Association Quarterly, v. 46(3), p. 33-46.

Perry, S., Weldon, R.J.II, 1999, The 1997 Vida, OR, earthquake swarm, Oregon Geology, v. 61, p. 107-110.

Langridge, R.M., Weldon, R.J.II, Moya, J.C., Suarez, G., 1999, Paleoseismology of the 1912 Acambay earthquake and the Acambay-Tixmadejé fault, Trans-Mexican Volcanic Belt, Journal of Geophysical Research: Solid Earth, 105 (B2), p. 3019-3037, doi.org/10.1029/1999JB900239.

Hemphill-Haley, M.A., Weldon, R.J.II, 1999, Estimating prehistoric earthquake magnitude from point measurements of surface rupture, Bulletin of the Seismological Society of America, v. 89 (5), p. 1264-1279.

Abdrakhmatov, K. Y., Weldon, R.J.II, Thompson, S.C., Burbank, D.W., Rubin, C.M., Miller, M.M., Molnar, P., 2001, Onset, style, and current rate of shortening in the central Tien Shan, Kyrgyz Republic (in Russian & English), Russian Geology and Geophysics, v. 42 (10), 1585 – 1609.

Thompson,S.C., Weldon, R.J.II, Rubin, C.M., Abdrakhmatov, K., Molnar, P., Berger, G., 2002 Late Quaternary slip rates across the central Tien Shan, Kyrgyzstan, central Asia, Journal of Geophysical Research: Solid Earth, 107 (B9), doi:10.1029/2001JB000596.

Biasi, G., Weldon, R.J.II, Fumal, T.E., Seitz, G.G., 2002, Paleoseismic event dating and conditional probabilities of large earthquakes on the southern San Andreas fault, Bulletin of the Seismological Society of America, v. 92 (7), p. 2761-2781.

Абдрахматов, К.Е., Уилдон, Р., Бурбанк, Д., Томпсон, С., Миллер, М., Рубин Ч., 2002, Возраст рельефа Северо-Восточного Тянь-Шаня. Наука и Новые технологии. (The age of relief of the North Tien Shan. Science and New Technologies. #2,2002. K.E.Abdrakhmatov, R.Weldon, D.Burbank, E.Thompson, M.Miller, Ch.Rubin).

Weldon, R.J.II, Fumal, T. E., Powers, T. J., Pezzopane, S. K., Scharer, K. M., Hamilton, J. C., 2002. Structure and earthquake offsets on the San Andreas fault at the Wrightwood, California paleoseismic site, Bulletin of the Seismological Society of America, 92, 2704-2725.

Абдрахматов, К.Е., Томпсон, C., Уилдон, Р., Рубин Ч., 2002, Иссык-атинский разлом: сегментация и сейсмическая опасность Наука и новые технологии, (The Issyk- Ata fault: segmentation and seismic hazard. Science and New Technologies. #3,2002. K.E.Abdrakhmatov, S.Thompson, R.Weldon,  Ch.Rubin).

Weldon, R.J.II, Fletcher, D. K., Weldon, E. M., Scharer, K. M., McCrory, P. A., 2003. An update of Quaternary faults of central and eastern Oregon, U.S. Geological Survey Open-File Report 02-301, 26 map sheets, scale 1:100,000, 1 CD-ROM.

Абдрахматов, К.Е., Томпсон, C., Уилдон, Р., Ормуков, Ч., 2003, Использование речных террас для оценки стиля и скорости тектонических движений. Наука и новые технологии, (Use of river terraces for evaluation of style and slip rate of tectonic movements). Science and New Technologies. #2,2003. K.E.Abdrakhmatov, S.Thompson, R.Weldon, Ch.Ormukov).

Weldon, R.J.II, Scharer, K.M., Fumal, T.E., and Biasi, G.P., 2004, Wrightwood and the earthquake cycle: What a long recurrence record tells us about how faults work, GSA Today, v. 14, 4-10.

Scharer, K. M., Burbank, D. W., Chen, J., Weldon, R.J.II, Rubin, C., Zhao, R., Shen, J., 2004. Detachment folding in the Southwestern Tian Shan - Tarim foreland, China; Shortening estimates and rates, Journal of Structural Geology, 26(11), 2119-2137.

Weldon, R.J.II, Fumal, T.E., Biasi, G.P., and Scharer, K.M., 2005, Past and future earthquakes on the San Andreas fault, Science, v.308, p. 966-967.

Biasi, G.P. and Weldon, R.J.II, 2006, Estimating surface rupture length and magnitude of paleoearthquakes from point measurements of rupture displacement, Bulletin of the Seismological Society of America, 96, 1612-1623.

Scharer, K.M., Burbank, D.W., Chen, J., and Weldon, R.J.II, 2006, Detachment folds deform fluvial terraces: Comparison of kinematic models and preserved terraces across the Kashi-Artushi fold system, Chinese Tian Shan, Bulletin of the Geological Society of America.

Scharer, K.M., Weldon, R. J.II, Fumal, T.E., Biasi, G.P., 2007. Paleoearthquakes on the southern San Andreas fault, Wrightwood, CA 3000 to 1500 B.C.: a new method for evaluating paleoseismic evidence and earthquake horizons, Bulletin of the Seismological Society of America. 97, 1054-1093.

Абдрахматов К.Е., Томпсон С., Уилдон Р. Активная тектоника Тянь-Шаня. Бишкек Илим, 2007, 72стр. [Abdrakhmatov, K.E., Thompson S., Weldon R., 2007, Active tectonics of Tien Shan, Bishkek, Ilim, 72pp.].