DISPERSION OF ONE-SECOND RAYLEIGH MODES THROUGH OCEANIC SEDIMENTS FOLLOWING SHALLOW EARTHQUAKES IN THE SOUTH-CENTRAL PACIFIC OCEAN BASIN.

Emile A. Okal*, Jacques Talandier

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The purpose of this study is to report the observation of anomalously long wavetrains of high-frequency seismic energy (0. 3-1 Hz) following shallow events at a number of epicenters in the South-central Pacific basin, and to model their propagation and generation as due to efficient coupling of the oceanic water column with the solid Earth through a well-developed transitional layer of sediments. The French Polynesia seismic network, consisting of 15 permanent stations, is presently the only large aperture seismic array operating in an oceanic intraplate environment. As such, it can provide exceptional insight into phenomena associated with intraplate seismicity.

Original languageEnglish (US)
Pages (from-to)345-358
Number of pages14
JournalNATO Conference Series, (Series) 4: Marine Sciences
Volume5
StatePublished - Jan 1 1980

ASJC Scopus subject areas

  • Engineering(all)

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