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  1. 2022 Seismic Cycles Workshops

    13 Oct 2022 | Contributor(s):: Sylvain Barbot, Multiple

    Presentations from the 2022 Seismic Cycles Workshop. 

  2. 2020 Crustal Deformation Modeling Workshop Report

    27 Jul 2022 | Contributor(s):: Brad Aagaard, Sylvain Barbot, Brittany Erickson, Matthew Knepley, Mark Simons, Charles Williams

    Workshop report

  3. 2022 Software Developers Workshop

    13 Jul 2022 | | Contributor(s):: Brad Aagaard, Rene Gassmoeller, Lorraine Hwang

    Workshop Report

  4. 2022 Modeling shallow slow slip events along the Hikurangi margin: Insights into their segmentation and the effect of pore-pressure cycling

    02 Jul 2022 | | Contributor(s):: Andrea Perez-Silva

    Friday July 1, 2022 Andrea Perez-Silva, Victoria University of Wellington Over the last two decades, geodetic observations have revealed slow slip events (SSEs) in most subduction zones worldwide. Of these, SSEs that occur along the shallow (<~15 km depth) portion of the Hikurangi...

  5. Jun 20 2022

    2022 Crustal Deformation Modeling Workshop

    We will be holding our biannual crustal deformation modeling workshop June 20-24, 2022, at the Colorado School of Mines in Golden, Colorado. The weeklong workshop will include 2 days of...

  6. 2022 Cycles of slow slip events on nonplanar subduction faults and their implications on megathrust earthquakes

    11 Jun 2022 | | Contributor(s):: Duo Li

    Slow slip and slow earthquakes (SSEs), driven by transient aseismic deformation along the subduction interface, are proposed to affect the initiation of megathrust earthquakes. Prominent examples, as inferred from geodetic and seismic observations, include the 2011 M9.1Tohoku-Oki,, the 2014...

  7. 2022 Fault-size dependent fracture energy, seismogenesis, and cascading rupture on multi-scale fault networks

    29 May 2022 | | Contributor(s):: Dmitry Garagash

    Fracture energy fundamentally affects all aspects of earthquake rupture, including fault seismogenesis. Seismological inferences of fracture energy [1-3] are seen to increase with both slip and the size of fault source. To explain these observations, refs [3-5] invoke co-seismic shear...

  8. 2022 Theoretical insights on the rupture arrest of large earthquakes

    24 May 2022 | | Contributor(s):: Jean Paul Ampuero

    What determines the size of an earthquake? How can we quantify the control of geometric and material heterogeneities on rupture segmentation? I will present recent progress in our theoretical understanding of earthquake rupture arrest, especially for the largest earthquakes. Recent advances in...

  9. 2022 Mainshock and aftershock sequence simulations in a nonplanar fault network

    19 May 2022 | | Contributor(s):: So Ozawa, Ryosuke Ando

    Aftershocks seem to be located along the trace of the mainshock fault; however, due to the location error, we do not know their exact location relative to the mainshock fault. Here, we hypothesize that most aftershocks occur on small subsidiary faults instead of the mainshock fault, and they...

  10. May 15 2022

    2022 ASPECT Hackathon

    Dates: May 15-24, 2022Location: Cody, WyomingTo further the development of the mantle convection code ASPECT and its user community, current users and developers of ASPECT will be working...

  11. 2022 Poroelastic Implementation in PyLith: Gateway to Multiphysics

    13 May 2022 | | Contributor(s):: Robert L Walker

    Thursday May 12, 2022 @ 2P PDT Poroelastic Implementation in PyLith: Gateway to Multiphysics Robert Walker, SUNY Buffalo PyLith, a community, open-source code ( for modeling quasi-static and dynamic crustal deformation with an emphasis on earthquake...

  12. May 12 2022

    Poroelastic Implementation in PyLith: Gateway to Multiphysics

    Robert Walker, SUNY BuffaloPyLith, a community, open-source code ( for modeling quasi-static and dynamic crustal deformation with an emphasis on...

  13. Apr 14 2022

    Interaction Between Earthquakes and Interseismic Deformation

    Kali Allison, UC DavisEarthquake cycle models can be used to understand the processes that govern fault and shear zone structure and to link these processes to earthquake cycle...

  14. Mar 10 2022

    Dynamo Simulations of Planetary Cores

    Ryan Orvedahl, UC DavisThe majority of solar system planets possess global, or large-scale, magnetic fields. These magnetic fields are all thought to be generated by the dynamo mechanism, whereby...

  15. 2022 Energy transfer among flow and magnetic fields with different equatorial symmetry during the dipole reversal in a geodynamo simulation

    17 Feb 2022 | | Contributor(s):: Takumi Kera, Hiroaki Matsui, Masaki Matsushima, Yuto Katoh

    The geomagnetic field has reversed its polarity, and some numerical dynamos have suggested that anti-symmetric flow with respect to the equator plays a role in reversals. Olson et al., (2004) suggested that the equatorial antisymmetric flow is temporarily strengthened, and transports a locally...

  16. Jan 13 2022

    Introduction to reference Earth models and datasets using AVNI

    Pritwiraj ‘Raj’ Moulik, Princeton University• Open-source Python package with APIs to handle data and compute intensive queries• Introduce storage formats or classes for...