Joint Inversion of Body and Surface Waves at the Rock Valley Direct Comparison (Nevada) Study Site
Description:
The Rock Valley Direct Comparison project (RVDC - Phase III of the Source Physics Experiment) is centered on conducting a large chemical explosion that is co-located with the source region of the unusually shallow 1993 Rock Valley earthquake series in southern Nevada. The goal is to improve the understanding of similarities and differences among signals produced by explosions in comparison to shallow natural events, by minimizing location and path variables.
As part of this experiment, we are developing a Vp, Vs, and density model for the RVDC site and surrounding region, through the joint inversion of seismic body wave arrivals, ambient-noise-based Rayleigh wave dispersion measurements, and gravity anomalies. This model will serve multiple purposes. It will be used to constrain material properties in the RVDC source region. It will aid in the analysis of both legacy observations from the 1993 series and the upcoming chemical explosion. Seismicity between 1993 and the present will be relocated in the model, which will be used to identify fault locations and orientations, building knowledge of the tectonics of the study site and of the broader Nevada National Security Site (NNSS).
Session: Advancements in Forensic Seismology and Explosion Monitoring - IV
Type: Oral
Date: 5/2/2024
Presentation Time: 05:15 PM (local time)
Presenting Author: Ellen
Student Presenter: No
Invited Presentation:
Authors
Ellen Syracuse Presenting Author Corresponding Author syracuse@lanl.gov Los Alamos National Laboratory |
Charlotte Rowe char@lanl.gov Los Alamos National Laboratory |
David Li davidzli@lanl.gov Los Alamos National Laboratory |
Nishath Ranasinghe ranasinghe@lanl.gov Los Alamos National Laboratory |
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Joint Inversion of Body and Surface Waves at the Rock Valley Direct Comparison (Nevada) Study Site
Category
Advancements in Forensic Seismology and Explosion Monitoring