Special Event Data
(Mw=9.0 OFF THE WEST COAST OF NORTHER SUMATRA 12/26/2004)
The Ocean Hemisphere Project Network has a broadband seismic station which is very close to the epicenter of Mw=9.0 OFF THE WEST COAST OF NORTHERN SUMATRA 12/26/2004 earthquake, the largest event in the last 40 years.
The distance is 3.2 degrees, and station PSI is closer than any IRIS GSN or GEOSCOPE station.

  • Centroid Location (determined by Harvard University) and Station Dirstribution Map

  • Data From Ocean Hemisphere Project Network
PSI (1 day long from 12/26/2004 00:00:00)
miniSEED BHZ BHN BHE
SAC BHZ BHN BHE
gzipped ASCII BHZ BHN BHE
JAY (1 day long from 12/26/2004 00:00:00)
miniSEED BHZ BHN BHE
SAC BHZ BHN BHE
gziped ASCII BHZ BHN BHE

  • instruments and sensitivity
sensor : STS-1 10^-2 m/s = 24V
digitizer : Q330 20V = 2^23 counts
total sensitivity 1 m/s = 1.007x10^9 counts

  • Figure
Displacement seismograms for the station "PSI". The horizontal axis is time in second, and the vertical axis is displacement in centimeter.

z-comp

n-comp
e-comp