2021 October 20-21

Seismology Frontiers

online Japan Standard Time

Join this student-centered discussion to explore current seismology frontiers for Earth's interior.

The future of meetings is uncertain, including when and to what capacity we can gather in person. We have designed this workshop to give students the opportunity to meet the invited speakers and each other to build their networks and learn new techniques to investigate the inner structure of our planet.

Day 1 offers an early session to overlap with the Americas. Day 2 offers a late session to overlap with Europe. Each session includes general discussion following each talk. Students have an opportunity to discuss directly with the speakers at the end of each session followed by on online forum for students to interact with each other.

Session 1: times in JST

8:00 introduction - Christine Houser - ELSI, Tokyo Tech

8:10 Jun Su - ELSI, Tokyo Tech

"Vp-Vs tomographic filter technique distinguishes thermal and composition/phase variations at the core-mantle boundary"

8:20 general discussion

8:30 Kenji Kawai - U. Tokyo

"Imaging paleoslabs and inferring the mantle flow in D″ beneath the northern Pacific based on high-resolution inversion of seismic waveforms for 3-D transversely isotropic structure"

8:45 general discussion

8:55 break

9:00 2-slide mini-talks

9:10 Haoran Meng - UCSD

"Detection of random noise and anatomy of seismic waveforms"

9:25 general discussion

9:35 wrap up

9:40 speakers and students only discussion

10:00 online mixer for students

10:30 end


Session 2: times in JST

14:00 introduction

14:10 Meghan Miller - ANU

"Inherited lithospheric structures control arc-continent collisional heterogeneity – on the cusp of a tear"

14:30 general discussion

14:45 2-slide mini-talks

14:55 break

15:00 Nozomu Takeuchi - U. Tokyo

"Attenuation and P velocity of the oceanic mantle"

15:20 general discussion

15:35 wrap up

15:40 speakers and students only discussion

16:00 online mixer for students

16:30 end

Session 3: times in JST

10:00 introduction

10:10 Akiko Toh - U. Tokyo

"Revealing the nature of slow earthquakes by applying a cluster analysis to their seismic records"

10:30 general discussion

10:45 2-slide mini-talks

10:55 break

11:00 Sima Mousavi - ANU

"Transdimensional Bayesian tomography of the lowermost mantle"

11:20 general discussion

11:35 wrap up

11:40 speakers and students only discussion

12:00 online mixer for students

12:30 end

Session 4: times in JST

17:00 introduction

17:05 Tarje Nissen-Meyer - Oxford

"The multiscale mantle: Can wavefield seismology shed more light into the abyss?"

17:20 general discussion

17:30 Masayuki Obayashi - JAMSTEC

"Updates from the floating seismometer MERMAID array"

17:45 general discussion

17:55 break

18:00 2-slide mini-talks

18:10 Laura Cobden - U. Utrecht

"Using neural networks for thermochemical interpretation of seismic tomography"

18:25 general discussion

18:35 wrap up

18:40 speakers and students only discussion

19:00 online mixer for students

19:30 end

Mission statement

Surging applications of machine learning algorithms and advanced computational resources have remarkably changed the methodology in geophysics and led us to a new era of science. A series of analyses enabled by geophysical big data will broaden our understanding of underground structures and the seismic phenomenon itself. As many of us have more time working with code during the Covid-19 pandemic, this workshop aims to offer an opportunity to exchange ideas and share new findings with colleagues around the world. All discussions on signal detection, tomographic inversion, geodynamic modeling, and geophysical applications of artificial intelligence, pattern recognition, numerical analysis, or other newly developed techniques are welcomed. We plan to have four online sessions, each of 2 hours, with unique keynote lectures followed by flash talks and panel discussions to start a lively conversation among participants.



Submit your mini-talk!

We encourage students to participate interactively by giving mini-talks. This is a great opportunity to introduce your research interests or new results to all participants and build your network. Each mini-talk has a maximum length of two slides and two minutes. The time allowed for mini-talks depends on the demand, so please consider sharing your thesis work.


Submit a mini-talk through the following form. Registration will still be open until Oct. 19.


Invited Speakers

Jun Su

Vp-Vs tomographic filter technique distinguishes thermal and composition/phase variations at the core-mantle boundary

Earth-Life Science Institute

Tokyo Institute of Technology

https://jun.su

Kenji Kawai

Imaging paleoslabs and inferring the mantle flow in D″ beneath the northern Pacific based on high-resolution inversion of seismic waveforms for 3-D transversely isotropic structure

University of Tokyo

https://www.s.u-tokyo.ac.jp/en/people/kawai_kenji/

Haoran Meng

Detection of random noise and anatomy of seismic waveforms

University of California San Diego

https://igpp.ucsd.edu/person/h2meng

Meghan Miller

Inherited lithospheric structures control arc-continent collisional heterogeneity – on the cusp of a tear

Australian National Universityhttps://earthsciences.anu.edu.au/people/academics/professor-meghan-s-miller



Nozomu Takeuchi

Attenuation and P velocity of the oceanic mantle

University of Tokyohttps://www.eri.u-tokyo.ac.jp/people/takeuchi/

Akiko Toh

Revealing the nature of slow earthquakes by applying a cluster analysis to their seismic records

University of Tokyo

http://www-solid.eps.s.u-tokyo.ac.jp/faculty/?lang=en

Sima Mousavi

Transdimensional Bayesian tomography of the lowermost mantle

Australian National Universityhttps://earthsciences.anu.edu.au/people/professional-staff/dr-sima-mousavi

Tarje Nissen-Meyer

The multiscale mantle: Can wavefield seismology shed more light into the abyss?

Oxford Universityhttp://seis.earth.ox.ac.uk/

Masayuki Obayashi

Updates from the floating seismometer MERMAID array

Japan Agency for Marine-Earth Science and Technologyhttp://www.jamstec.go.jp/verc/e/members/

Laura Cobden

Using neural networks for thermochemical interpretation of seismic tomography

Utrecht Universityhttp://www.geo.uu.nl/~laura/

Mini-talks

  • Meng Liu - University of Massachusetts Amherst
    "Three-dimensional variation of the slab geometry within the South American Subduction System" @ Session 1


  • Jonathan Wolf - Yale University
    "Using full-wave simulations to better understand lowermost mantle anisotropy" @ Session 1


  • Robert Pickle - Australian National University
    "Re-windowing Technique for Machine Learning Phase Picking" @ Session 2


  • Siyuan Zhao - Australian National University
    "Co-seismic and Post-seismic Deformation Associated with the 2018 Lombok, Indonesia, Earthquake Sequence, and Its Impact on the Rinjani Volcano Inferred from InSAR Time-series and Seismic Data Analysis" @ Session 2


  • Chengxin Jiang - Australian National University
    "Kanto Basin imaging with autocorrelation functions" @ Session 3


  • Thomas Y Chen - Academy for Mathematics, Science, and Engineering
     "Machine Learning for The Assessment of Seismic Impacts on Infrastructure from Space" @ Session 3


  • Ritsuya Shibata - Tokyo Institute of Technology
    "Radiation-corrected empirical Green's function" @ Session 4

ELSI CODE OF CONDUCT


ELSI aims to be a safe and productive environment that fosters open dialogue and the free expression of ideas, free of harassment, discrimination and hostile conduct.

To achieve this goal, you, as a member of ELSI, take on the following responsibilities:

1. Behaving in a professional manner when acting in a professional capacity:

1.1. Treat everyone with dignity and respect, in a fair and equitable manner.

1.2. Be mindful that perception of misconduct varies from person to person.

1.3. Be considerate of different cultural backgrounds that may have different social codes.

1.4. Maintain/help maintain positive group interaction during discussions.

2. Responding to experiences, observations or claims:

2.1. Know what constitutes misconduct. When in doubt, ask.

2.2. Report experienced or observed misconduct to prevent future misconduct.

2.3. Acknowledge that not reporting observed misconduct normalizes and perpetuates this behavior.

These guidelines apply to ELSI members at all times and places when acting in a professional capacity and to anyone hosted by ELSI, on the ELSI campus, or attending an ELSI event.