Local Magnitude (Ml) Calibration for the Puerto Rico Seismic Network
Abstract: Puerto Rico and the Virgin Islands region (PRVI) is seismically active due to its geographical location, averaging hundreds of earthquakes per year, mostly small events (M<4.0). However, Puerto Rico has been subject to many significant events throughout history, such as the recent seismic sequence in the southwestern region, with the principal M6.4 event occurring in January 2020. The Puerto Rico Seismic Network (PRSN) measures the magnitude earthquakes in the PRVI region with duration magnitude (Md). At this moment, it does not have a reliable local magnitude scale (Ml) measurement; for this reason, a calculation and calibration of Ml in the PRSN systems is proposed, based on the original Richter definition. Using data from 2000 earthquake events collected from the 31 multiple instruments from PRSN (including broadband and short-period seismometers). The results will be compared with the Early Bird system and United States Geological Survey (USGS) earthquake catalogs within the PRVI region and a graphical relationship between the published Ml vs the computed Ml can be established.
Presenting Author: Sandra Rosero-Rueda
Student Presenter: Yes
Day: 4/22/2021
Time: 11:30 AM - 12:30 PM Pacific
Additional Authors
Sandra Rosero-Rueda Presenting Author Corresponding Author sandra.rosero@upr.edu University of Puerto Rico at Mayagüez |
Victor Huerfano-Moreno victor.huerfano@upr.edu University of Puerto Rico at Mayagüez |
Elizabeth Vanacore elizabeth.vanacore@upr.edu University of Puerto Rico at Mayagüez |
Alberto Lopez-Venegas alberto.lopez3@upr.edu University of Puerto Rico at Mayagüez |
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Local Magnitude (Ml) Calibration for the Puerto Rico Seismic Network
Category
General Session
Description