Seismic monitoring of the Indian Ocean tsunami

Details Seismic monitoring of the Indian Ocean tsunami Seismic monitoring of the Indian Ocean tsunami

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3215308y&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 15, CiteID L15308

Physics

9

Oceanography: Physical: Tsunamis And Storm Surges, Seismology: General Or Miscellaneous, Geographic Location: Indian Ocean

Scientific paper

The 26 December 2004 Sumatra-Andaman earthquake of Mw 9.3 triggered a massive tsunami in the Indian Ocean. We here report on observations of the Indian Ocean tsunami at broadband seismic stations located on islands in the area. The tsunami induces long-period (>1000 s) signals on the horizontal components of the sensor. Frequency-time analysis shows that the long-period signals cannot be due to seismic surface waves, but that it arrives at the expected time of the tsunami. The waveforms are well correlated to tide gauge observations at a location where both observations are available. To explain the signals we favour tilt due to coastal loading but we cannot at the present stage exclude gravitational effects. The density of broadband stations is expected to increase rapidly in the effort of building an earthquake monitoring system. They may unexpectedly become useful tsunami detectors as well.

Affiliated with

Also associated with

No associations

Rating

Seismic monitoring of the Indian Ocean tsunami does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Seismic monitoring of the Indian Ocean tsunami, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seismic monitoring of the Indian Ocean tsunami will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-853502