Room: Ballroom
Date: 4/20/2023
Session Time: 8:00 AM to 5:45 PM (local time)
Deciphering Earthquake Clustering for the Better Understanding of Crustal Deformation Mechanisms
When is the occurrence of earthquakes random and when is it not? How do earthquakes interact and why are interactions stronger in some places? Which physical processes enhance clustering and which do not? More than a century after the first quantitative description of earthquake clustering in aftershock sequences by Omori, clustering has been recognized as the consequence of stress redistribution accompanying deformation in the crust (for example, after a large earthquake). However, high resolution catalogs, application of advanced statistical analyses and numerical modeling in complex fault analogues have started to reveal how earthquake clustering can also emerge from the interplay between fault complexity and physical processes occurring in the lithosphere. The role of transient creep and fault heterogeneity are for example nowadays key factors in controlling the occurrence of time and space synchronization of seismicity. However, much remains to discover about the relationship between the observed spatio-temporal clustering of earthquakes and the driving mechanisms, as well as the host rock properties.
In this session we welcome observational, experimental, numerical and theoretical studies tackling the issue of earthquake clustering at different spatial and temporal scales, and which provide interpretation in terms of fault and other crustal mechanisms. Studies focusing on different tectonics settings, and on volcanoes, are welcome, with the aim of shedding new light on the physics of earthquake clustering and understanding the dynamics of complex crustal processes better.
Conveners
Eric Beauce, Lamont-Doherty Earth Observatory, Columbia University (ebeauce@ldeo.columbia.edu)
Patricia Martínez‐Garzón, GFZ Potsdam (patricia@gfz-potsdam.de)
Piero Poli, Università di Padova (pieropoli85@gmail.com)
Poster Presentations
| Participant Role | Details | Action |
|---|---|---|
| Submission | Intraplate Omori Decay Parameters and Spatiotemporal Distribution 145 Recent Central and Eastern North American Sequences | View |
| Submission | Variation of Fault Creep Along the Overdue Istanbul-Marmara Seismic Gap in Nw Turkey | View |
| Submission | Temporal Clustering of Earthquakes in the Canadian Arctic on a Regional Scale | View |
| Submission | Closing the Gap Between Local and Regional Observations of Segmented Ocean Plate Boundaries With a New 25-Year Earthquake Catalog of the European Arctic Seas | View |
| Submission | Structural Control on the Distribution of Earthquake Clusters Along the Northern Ecuadorian Margin | View |
| Submission | Automated Detection and Characterization of Swarms and Mainshock-Aftershock in Southern Mexico | View |
| Submission | Intermittence of Transient Slow Slip in the Mexican Subduction Zone, as Seen by Tectonic Tremors | View |
Deciphering Earthquake Clustering for the Better Understanding of Crustal Deformation Mechanisms [Poster]
Description