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Room: 209C

Date: 4/20/2023

Session Time: 8:00 AM to 11:15 AM (local time)

Earthquake Preparation Across Scales: Reconciling Geophysical Observations With Laboratory and Theory
Observing and understanding the physical processes occurring before large earthquakes is fundamental for both scientific purposes and to advance our ability to forecast these catastrophic events. Current physical models of earthquake initiation mainly focus on laboratory experiments and theoretical work. While these studies often describe a distinct nucleation phase, direct field observations of similar preparatory processes based on seismological or geodetic data are still lacking. Nevertheless, recent improvements in monitoring capabilities, density of recording stations, data quality and the development of novel data analysis methods, have increased the spectrum of available observations of processes occurring before large earthquakes. These recent observations, often spanning several spatial and temporal scales, can provide insights into the physical conditions promoting or inhibiting a detectable earthquake preparatory process or fault unrest. In this session we welcome (but we are not limited to) (i) contributions focusing on the observation, analysis and modeling of earthquake preparatory processes from seismological and/or geodetic data covering different spatial and temporal scales, (ii) studies focusing on laboratory scale, theoretical analysis and numerical modeling. For both, we welcome presentations providing novel observations and new insights into the complexities involved in earthquake preparation and initiation and new data analysis (e.g. machine learning, big data, unsupervised analysis) which shed light on earthquake preparation.

Conveners
Piero Poli, Università di Padova (piero.poli@unipd.it)
Patricia Martinez-Garzon, GFZ Potsdam (patricia@gfz-potsdam.de)
Gregory McLaskey, Cornell University (gcm8@cornell.edu)

Oral Presentations