The Effects of Seismic Network Modernization on Earthquake Detection and Analysis in Southern California
Description:
The growth and modernization of seismic networks is typically assumed to benefit detection and understanding of seismic activity. However, the location and set-up of new seismic stations is very important for making this a reality. Over the past ~17 years, efforts have been made to modernize operations of the Southern California Seismic Network. These efforts have included adding new stations, upgrading equipment, and improving data analysis software and procedures. In this presentation, we evaluate the effects of the modernization efforts on our earthquake detection and analysis capabilities. We examine the magnitude of completeness (Mc) for the earthquake catalog as a whole and for specific regions that have been a focus for improvements, such as the Salton Sea. The overall Mc appears to have had only a small decrease over the study period. We also consider other measures of catalog and detection limitations that depend on the network geometry. The results of these analysis will help guide future improvements and adjustments of the seismic network.
Session: Network Seismology: Recent Developments, Challenges and Lessons Learned
Type: Oral
Date: 4/20/2023
Presentation Time: 09:00 AM (local time)
Presenting Author: Gabrielle Tepp
Student Presenter: No
Invited Presentation:
Authors
Gabrielle Tepp Presenting Author Corresponding Author gtepp@caltech.edu California Institute of Technology |
Igor Stubailo stubailo@caltech.edu California Institute of Technology |
Ellen Yu eyu@caltech.edu California Institute of Tehcnology |
Marcos Alvarez malvarez@usgs.gov U.S. Geological Survey |
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The Effects of Seismic Network Modernization on Earthquake Detection and Analysis in Southern California
Category
Network Seismology: Recent Developments, Challenges and Lessons Learned