Precise relative earthquake magnitudes from cross correlation

K. Michael Cleveland, Charles J. Ammon

Research output: Contribution to journalArticle

7 Citations (Scopus)

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

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earthquake magnitude
cross correlation
Earthquakes
earthquakes
Tensors
centroid moment tensor
earthquake
Panama
fracture zone
centroids
catalogs
waveforms
slip
method
tensors
moments
estimates

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

Cite this

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Precise relative earthquake magnitudes from cross correlation. / Michael Cleveland, K.; Ammon, Charles J.

In: Bulletin of the Seismological Society of America, Vol. 105, No. 3, 01.06.2015, p. 1792-1796.

Research output: Contribution to journalArticle

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