Precise relative earthquake magnitudes from cross correlation

K. Michael Cleveland, Charles J. Ammon

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

We present a method to estimate precise relative magnitudes using cross correlation of seismic waveforms. Our method incorporates the intercorrelation of all events in a group of earthquakes, as opposed to individual event pairings relative to a reference event. This method works well when a reliable reference event does not exist. We illustrate the method using vertical strike-slip earthquakes located in the northeast Pacific and Panama fracture zone regions. Our results are generally consistent with the Global Centroid Moment Tensor catalog, which we use to establish a baseline for the relative event sizes.

Original languageEnglish (US)
Pages (from-to)1792-1796
Number of pages5
JournalBulletin of the Seismological Society of America
Volume105
Issue number3
DOIs
StatePublished - Jun 1 2015

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

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