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Near-real-time finite-fault inversions for large earthquakes in Chile using strong-motion data

Pablo Koch, Francisco Bravo, Sebastian Riquelme and Jorge G. F. Crempien
Near-real-time finite-fault inversions for large earthquakes in Chile using strong-motion data
Seismological Research Letters (August 2019) Pre-Issue Publication

Abstract

Recent efforts have been made to model the rupture process of large earthquakes in near-real time (NRT) in Chile. In this study, we propose an automated procedure using strong-motion data in an integrated system, which can characterize large earthquakes with a finite-fault model (FFM) in NRT. We developed several heuristic rules using the preliminary W-phase solutions to automatically set up the search ranges of the finite-fault inversions. The results show using strong?motion data and a W-phase magnitude, it is possible to obtain a rapid kinematic FFM in just a few minutes after the earthquake origin time.


ISSN: 0895-0695
EISSN: 1938-2057
Serial Title: Seismological Research Letters
Serial Volume: Pre-Issue Publication
Title: Near-real-time finite-fault inversions for large earthquakes in Chile using strong-motion data
Affiliation: University of Chile, National Seismological Center, Santiago, Chile
Published: 20190814
Text Language: English
Publisher: Seismological Society of America, El Cerrito, CA, United States
References: 80
Accession Number: 2020-006632
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, sketch maps
S44°00'00" - S42°00'00", W76°00'00" - W72°00'00"
S22°00'00" - S18°00'00", W72°00'00" - W68°00'00"
Secondary Affiliation: Pontificia Universidad Catolica de Chile, CHL, Chile
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2020, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 202006
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