AGU Session S014: How do earthquakes start?

Valere Lambert vlambert at caltech.edu
Mon Jul 13 17:02:05 UTC 2020


Dear colleagues,



We would like to draw your attention to the following session being
organized by the Seismology section at the upcoming 2020 AGU Fall meeting:



*S014** - How do earthquakes start?*



*Session Description:*

While a number of physical processes and properties, such as fault
frictional/structural heterogeneity, the presence of fluids, thermal
effects, aseismic deformation, as well as static and dynamic stress
changes, have been proposed to play a role in the nucleation and triggering
of earthquakes, their relative significance and relevant spatial and
temporal scales remain uncertain. We welcome experimental, theoretical and
observational studies that explore and provide constraints on the
mechanisms and conditions that are critical for understanding how ruptures
begin, including but not limited to the following questions: (1) To what
degree and at what spatio-temporal scales does heterogeneity impact
nucleation? (2) Under what conditions do fluids induce unstable slip? (3)
What role do static/dynamic stress changes play in promoting seismicity?
(4) What is the relationship between aseismic deformation and earthquake
nucleation? (5) Why do some ruptures accelerate and become large dynamic
events while others remain small or aseismic?



Conveners:

Valère Lambert,       California Institute of Technology

Camilla Cattania,     Massachusetts Institute of Technology

Heather Savage,      University of California, Santa Cruz

Zachary Ross,          California Institute of Technology





As a reminder, the abstract submission deadline is *Wednesday, July 29 at
23:59 EDT*.
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