Direct Dynamic Triggering Scenarios of the Southern San Andreas Fault by Moderate Magnitude Cross Fault Earthquakes in the Brawley Seismic Zone, CA
(Kyriakopoulos and Oglesby, 2024, SRL)
Note: for a better viewing experience use "Settings>Quality>1080p HD".
All the videos in this webpage are made using PARAVIEW.
Top panel: 8 x 8 km rupture area; rupture near the center of the cross-fault; 4 km burial (top) depth; Bottom panel: same with top panel but for a 9 x 9 km rupture area;
vertical-stack-output.mp4Top panel: 36 km^2 rupture area; rupture near opposite edge from the SSAF; 2 km burial (top) depth; elongated rupture shape; Bottom panel: same with top panel but 0 km burial depth.
vertical-stack-output2.mp4Top panel: 6 x 6 km rupture; square rupture area; nucleation near the opposite edge from the SSAF;
Bottom panel: 36 km^2 rupture area; rupture near opposite edge from the SSAF; 2 km burial (top) depth; elongated rupture shape;
Center-BreakSurf-6x6km_vs_36sqrkm-OppEdge-Directivity.mp4Note: for a better viewing experience use "Settings>Quality>1080p HD".
All the videos in this webpage are made using PARAVIEW.
Kyriakopoulos, C., Oglesby, D. D., Rockwell, T. K., Meltzner, A. J., Barall, M., Fletcher, J. M., & Tulanowski, D. ( 2019). Dynamic rupture scenarios in the Brawley Seismic Zone, Salton Trough, southern California. Journal of Geophysical Research: Solid Earth, 124. https://doi.org/10.1029/2018JB016795
Play the videos together and observe the differences around the area of the cross-faults area. The value "S" stands for "seismic parameter", the ratio of strength excess over the expected stress drop. Low S means higher tendency for rupture than high S. For example in model N2S-S2.0-X0.45 the cross faults are pre-stressed at a higher level (S=0.45) than the main faults (S=2.0). Note: for a better viewing experience use "Settings>Quality>1080p HD".
All the videos in this webpage are made using PARAVIEW.
Dynamic rupture simulation with all the participating faults pre-stressed homogeneously (no pre-stress contrast between main faults and cross-faults). [Model N2S-S2.0-X2.0]. Map Data: Google, Image Landsat, Copernicus, INEGI.
Dynamic rupture simulation with cross-faults pre-stressed at a higher level than the main faults. [Model N2S-S2.0-X0.45]. Map Data: Google, Image Landsat, Copernicus, INEGI.
Dynamic rupture simulation with high pre-stress (S=0.45) level in all the participating faults. [Model N2S-S0.45-X0.45]. Map Data: Google, Image Landsat, Copernicus, INEGI.
Dynamic rupture simulation with high pre-stress level (S=0.45), shallower locking depth (15 km) and the cross-fault intersecting the main faults (segmented model). [Model N2S-S0.45-X0.45-d15km-14f]. Map Data: Google, Image Landsat, Copernicus, INEGI.
N2S-S2.0-X2.0-S2.0-X0.45-VertStacked.mp4Comparisons between model N2S-S2.0-X2.0 (top) and N2S-S2.0-X0.45 (bottom). Map Data: Google, Image Landsat, Copernicus, INEGI.
N2S-S2.0-X2.0-S0.45-X0.45-VertStacked.mp4Comparison between models N2S-S2.0-X2.0 (top) and N2S-S2.0-X0.45 (bottom). Map Data: Google, Image Landsat, Copernicus, INEGI.
cut4.mp4cut3.mp4Comparison between models N2S-S2.0-X2.0 (top left), N2S-S2.0-X0.45 (bottom left), N2S-S0.45-X0.45-d15km-14f (top right) and N2S-S0.45-X0.45 (bottom right). Map Data: Google, Image Landsat, Copernicus, INEGI.
Comparison between models N2S-S0.45-X0.45-d15km-14f (top) and N2S-S0.45-X0.45 (bottom) .Map Data: Google, Image Landsat, Copernicus, INEGI.
Map Data: MapData: Landsat/Copernicus,SIO,NOAA, U.S. Navy,NGS,GEBCO, LDEO-Columbia,NSF
untitled100.0.mp4Map Data: MapData: Landsat/Copernicus,SIO,NOAA, U.S. Navy,NGS,GEBCO, LDEO-Columbia,NSF
Map Data: MapData: Landsat/Copernicus,SIO,NOAA, U.S. Navy,NGS,GEBCO, LDEO-Columbia,NSF