Room: 208B
Date: 4/20/2023
Session Time: 2:00 PM 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)
Oral Presentations
| Participant Role | Details | Start Time | Minutes | Action |
|---|---|---|---|---|
| Submission | Aftershock Triggering and Spatial Aftershock Zones in Fluid-Driven Settings | 02:00 PM | 15 | View |
| Submission | Spatio-Temporal Dynamics of Earthquake Swarms in the Yellowstone Caldera | 02:15 PM | 15 | View |
| Submission | Ubiquitous Earthquake Dynamic Triggering in Southern California | 02:30 PM | 15 | View |
| Submission | Quantifying Space-time Earthquake Clustering on a Given Fault Network | 02:45 PM | 15 | View |
| Submission | WITHDRAWN Anatomy of a Fault Zone: Space-Time-Magnitude Patterns of Microseismicity in the San Jacinto Fault Zone, Southern California | 03:00 PM | 15 | View |
| Other Time | Break | 03:15 PM | 75 | |
| Submission | From Foreshock Outset to Aftershock Decay: High-resolution Analysis of a Recent Earthquake Sequence in the Ecuadorian Subduction Margin | 04:30 PM | 15 | View |
| Submission | Linking Fault Roughness at Seismogenic Depths to Earthquake Behavior | 04:45 PM | 15 | View |
| Submission | Micro-Seismicity Clustering, Aftershock Decay and B-Values During Laboratory Fracture and Stick-Slip Experiments | 05:00 PM | 15 | View |
| Submission | Why Do We Need New Models of Earthquake Occurrence? | 05:15 PM | 15 | View |
| Submission | Seismic Magnitude Clustering Is Prevalent in Field and Laboratory Catalogs but Absent in Synthetic Catalogs | 05:30 PM | 15 | View |
| Total: | 225 Minute(s) |
Deciphering Earthquake Clustering for the Better Understanding of Crustal Deformation Mechanisms
Description