Earthquake Source Parameters: Theory, Observations and Interpretations [Poster]
Date: 4/25/2019
Room: Fifth Avenue
Understanding origin and spatio-temporal evolution of seismicity needs a careful quantitative analysis of earthquake source parameters for large sets of earthquakes in studied seismic sequences. Determining focal mechanisms, seismic moment tensors, static stress drop, apparent stress and other earthquake source parameters provides an insight into tectonic stress and crustal strength in the area under study, material properties and prevailing fracturing mode (shear/tensile) in the focal zone, and allows investigating earthquake source processes in greater detail. In addition, studying relations between static and dynamic source parameters and earthquake size is essential for understanding the self-similarity of rupture processes and scaling laws and for improving our knowledge of ground motion prediction equations.
This session focuses on methodological as well as observational aspects of earthquake source parameters of natural or induced earthquakes in a broad range of magnitudes from large to small earthquakes, including acoustic emissions in laboratory experiments. Presentations of new approaches to determination of focal mechanisms, seismic moment tensors and other source parameters, as well as case studies related to analysis of earthquake source parameters are welcome. We also invite contributions related to scaling of static and dynamic source parameters, to self-similarity of earthquakes and inversions for stress and other physical parameters in the focal zone.
Conveners
Vaclav Vavrycuk, Institute of Geophysics, Prague (vv@ig.cas.cz)
Douglas Dreger, University of California, Berkeley (dreger@seismo.berkeley.edu)
Grzegorz Kwiatek, GFZ Potsdam (kwiatek@gfz-potsdam.de)
Poster Presentations
| Participant Role | Details | Action |
|---|---|---|
| Submission | The 2007 Ning’er Mw 6.1 Earthquake: A Shallow Rupture in Southwest China Revealed by Insar Measurements | View |
| Submission | Rupture Initiation of Small Earthquakes in the Corinth Rift, Greece | View |
| Submission | Fault Failure in Oklahoma Is Anything but Simple | View |
| Submission | Multiple Point Source Inversions on Teleseismic Waveform Data Reveal the Complex Super-Shear Rupture Process of the 2018 Mw 7.5 Palu Earthquake | View |
| Submission | Frequency-Dependent Moment Tensors of Induced Microearthquakes | View |
| Submission | Finite-Source Inversion of the 14 December 2016 M5 Geysers Geothermal Field Earthquake, Post-Earthquake Velocity Changes and Finite-Source Scaling | View |
| Submission | Data-Driven Earthquake Detection, Localization and Source Mechanism Estimation Based on Wavefield Extrapolation and 2D Deconvolution in High-Noise Environments | View |
| Submission | Source Properties of Repeating Earthquakes in Aftershocks of the 2016 ML 5.8 Gyeongju Earthquake Sequences | View |
| Submission | [Withdrawn] Earthquake Source Mechanisms and Relationship to an Updated Fault Framework of the Greater Permian Basin in West Texas | View |
| Submission | Stress Drops and Directivity of Induced Earthquakes in Western Canada Sedimentary Basin | View |
| Submission | [Withdrawn] Stress Drops for Microseismicity in Asperity-Like Dynamic Fault Models: Actual Values vs. Estimates From Spectral Fitting and Second-Moment Approaches | View |
| Submission | Long-Period Velocity Pulses at Near-Fault Region During the 2016 Kumamoto Earthquake, Japan | View |
| Submission | Self-Adapting Bayesian Fault Slip Inversion With Green Functions Uncertainty: Demonstration on the 2016 M7 Kumamoto, Japan, Earthquake | View |
| Submission | Reliable Moment Magnitudes (Mw) of Smaller Size Events Using Coda Waves | View |
| Submission | Characterizing Moderate-Magnitude Earthquakes and Their Aftershocks Using Montana Regional Seismic Network Data | View |
| Submission | Differences Between Main-Shock and Aftershock Ground Motions Using the Japan’s Kik-Net Database | View |
| Submission | Rupture Behavior and Interaction of the 2018 Hualien Earthquake Sequence and Its Tectonic Implication | View |
| Submission | Relocations and Tectonic Implications of the Nine Mile Ranch Sequence From 2016-2018: 3 Mw 5.4-5.6 Near Hawthorne, Nevada | View |
| Submission | Coseismic Slip and Early Afterslip of the m6.0 August 24, 2014 South Napa, California, Earthquake | View |
Earthquake Source Parameters: Theory, Observations and Interpretations [Poster]
Description