An Integrated Approach to Seismic Event Location: 1. Evaluating How Method of Location Affects the Volume of Groups of Hypocenters

dc.creatorFrohlich, Clifford A.
dc.date.accessioned2018-07-18T19:17:38Z
dc.date.available2018-07-18T19:17:38Z
dc.date.issued1992
dc.description.abstractWhen seismic events occur in spatially compact clusters, the volume and geometric characteristics of these clusters often provides information about the relative effectiveness of different location methods, or about physical processes occurring within the hypocentral region. This report defines and explains how to determine the convex polyhedron of minimum volume (CPMV) surrounding a set of points. We evaluate both single-event and joint hypocenter determination (JHD) relocations for three rather different clusters of seismic events: 1) nuclear explosions from Mururoa relocated using P and PKP phases reported by the ISC, 2) intermediate depth earthquakes near Bucaramanga, Colombia, relocated using P and PKP phases reported by the ISC, and 3) shallow earthquakes near Vanuatu (formerly, the New Hebrides), relocated using P and S phases from a local station network. This analysis demonstrates that different location methods markedly affect the volume of the CPMV, however, volumes for JHD relations are �not always smaller than volumes for single-event relocations.
dc.description.departmentInstitute for Geophysics
dc.description.sponsorshipPhillips Laboratory, Directorate of Geophysics, Air Force Material Command, Hanscom Air Force Base, Massachusetts
dc.identifierdoi:10.15781/T24X5509X
dc.identifier.citationFrohlich, Cliff. "An Integrated Approach to Seismic Event Location: 1. Evaluating How Method of Location Affects the Volume of Groups of Hypocenters." University of Texas Institute for Geophysics Technical Report No. 125 (12 November 1992), 36p.
dc.identifier.urihttp://hdl.handle.net/2152/65681
dc.language.isoeng
dc.publisherInstitute for Geophysics
dc.relation.ispartofseriesUniversity of Texas Institute for Geophysics Technical Report;No. 125
dc.subjectseismology
dc.subjectearthquake
dc.titleAn Integrated Approach to Seismic Event Location: 1. Evaluating How Method of Location Affects the Volume of Groups of Hypocenters
dc.typeTechnical Report

Access full-text files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
UTIGTR_0125_OCR.pdf
Size:
1.17 MB
Format:
Adobe Portable Document Format
Description: