Room: 209B
Date: 4/20/2023
Session Time: 8:00 AM to 11:15 AM (local time)
Crustal Imaging of High Seismic Hazard Regions
In high seismic hazard areas, imaging both the elastic and anelastic properties of the medium is key for evaluating deformation processes and the impact of complex fault systems on ground motion amplification. Characterizing crustal features is especially challenging when wave focusing and conversions, or fluid interactions occur such as in geothermal and volcanic areas. Combining attenuation and velocity models is crucial for predicting site response and seismic wavefield amplitudes. This session aims at providing an overview of techniques and applications related to the imaging and validation of seismic velocity and attenuation across various scales ranging from laboratory samples to basin and plate boundary scales.
We welcome onshore and offshore passive and active-source seismic studies and studies based on gravity and magnetic data that discuss the characterization of crustal structures, including faults, volcanic and geothermal areas. We aim to gather contributions from velocity and attenuation tomography (t* method, direct wave attenuation, coda waves) and other imaging techniques (e.g., using ambient noise and converted waves). We welcome studies aimed at including these models and other multidisciplinary geophysical and geological data in ground motion modeling, seismic hazard assessments and site response analysis. We also encourage submissions from early-career researchers and studies using innovative methodologies (e.g., machine learning).
Conveners
Chiara Nardoni, Louisiana State University (cnardoni@lsu.edu)
Simona Gabrielli, Istituto Nazionale di Geofisica e Vulcanologia (simona.gabrielli@ingv.it)
Patricia Persaud, University of Arizona (ppersaud@lsu.edu)
Eric Sandvol, University of Missouri (SandvolE@missouri.edu)
Oral Presentations
| Participant Role | Details | Start Time | Minutes | Action |
|---|---|---|---|---|
| Submission | Subduction Zone Interface Structure Within the Southern M9.2 1964 Great Alaska Earthquake Asperity: Constraints From Receiver Functions Across a Spatially Dense Node Array | 08:00 AM | 15 | View |
| Submission | WITHDRAWN 3D Crust and Upper Mantle Velocity Structure of India and Surrounding Regions Using Rayleigh Wave Dispersion Analysis. | 08:15 AM | 15 | View |
| Submission | Ambient Seismic Noise for Imaging and Monitoring Volcán De Colima | 08:30 AM | 15 | View |
| Submission | In Situ Vp/Vs Ratios During the 2019 Ridgecrest Earthquake Sequence | 08:45 AM | 15 | View |
| Submission | Site Amplification Variability in Yangon, Myanmar Tracked by Regional and Local Seismic Phases From a Dense Nodal Array | 09:00 AM | 15 | View |
| Other Time | Break | 09:15 AM | 45 | |
| Submission | Seismic Imaging of the Solfatara Volcano (Southern Italy) and Characterization of the Very Shallow Fluids Accumulation Zone. | 10:00 AM | 15 | View |
| Submission | 3D Mapping of Scattering Attenuation for the Central Italy 2016-2017 Seismic Sequence | 10:15 AM | 15 | View |
| Submission | Tomography of Crustal Seismic Attenuation in Switzerland and Surrounding Regions: A New Input for the Next Generation of Seismic Hazard Models | 10:30 AM | 15 | View |
| Submission | 3D Seismic Attenuation Model: Scattering and Absorption Imaging Beneath the Los Angeles Metropolitan Area | 10:45 AM | 15 | View |
| Submission | Attenuation of the South American Lithosphere | 11:00 AM | 15 | View |
| Total: | 195 Minute(s) |
Crustal Imaging of High Seismic Hazard Regions
Description