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Data from the Geospatial Information Authority (GSI) of Japan was processed by the Jet Propulsion Laboratory (JPL) and Caltech (sideshow.jpl.nasa.gov...) to yield the three-dimensional coseismic displacement field over the Japanese Islands (Figures 1 and 2). The coast of northeast Japan moved eastward up to 4 meters, and the coastline generally subsided by about 0.5 meters (up to a maximum of 1.1 meters in eastern Miyagi Prefecture), due to the position of the coast approximately above the lower edge of the rupture area along the interplate boundary.
We show 2 videos on Japan's movement over the 35 minutes following the initiation of the Tohoku-Oki (M 9.0). These images are made possible because of the density of GPS stations in Japan (about 1200 GPS stations, or a GPS station every ~30 km). The preliminary GPS displacement data that these animations are based on are provided by the ARIA team at JPL and Caltech. All Original GEONET RINEX data provided to Caltech by the Geospatial Information Authority (GSI) of Japan.
Originally posted by muzzy
reply to post by Robin Marks
Thats a Swarm
I see no pattern time wise, depth looks pretty consistant.
Maybe there is one location wise, but you would have to map those out at a closer scale than what USGS have on the associated map to that page link.
What pattern do you see ?
This is a computer-generated message -- this event has not yet been reviewed by a seismologist.
Date-Time Sunday, April 10, 2011 at 16:21:57 UTC
Sunday, April 10, 2011 at 09:21:57 AM at epicenter
Location 40.379°N, 125.421°W
Depth 5.1 km (3.2 miles) (poorly constrained)
Region OFFSHORE NORTHERN CALIFORNIA
Distances 96 km (60 miles) W (274°) from Petrolia, CA
100 km (62 miles) WSW (258°) from Ferndale, CA
110 km (68 miles) WSW (249°) from Humboldt Hill, CA
116 km (72 miles) WSW (247°) from Eureka, CA
389 km (241 miles) NW (319°) from San Francisco City Hall, CA
Location Uncertainty horizontal +/- 7.6 km (4.7 miles); depth +/- 34.9 km (21.7 miles)
Parameters Nph= 41, Dmin=96 km, Rmss=0.42 sec, Gp=259°,
M-type=local magnitude (ML), Version=2
Source California Integrated Seismic Net:
USGS Caltech CGS UCB UCSD UNR
Event ID nc71555656
Universal Time April 11 2011 at 0:33 NZ Standard Time
Monday, April 11 2011 at 12:33 pm
Latitude, Longitude 40.28°S, 176.38°E
Focal Depth 30 km
Richter magnitude 5.1
Region Hawke's Bay
* 20 km west of Porangahau * 30 km east of Dannevirke * 70 km east of Palmerston North * 180 km north-east of Wellington
MAP 3.0 2011/04/11 01:05:00 38.362 -118.761 0.0 NEVADA
MAP 2.6 2011/04/11 00:31:09 38.305 -118.873 0.0 NEVADA
MAP 4.2 2011/04/11 00:22:21 38.379 -118.735 13.8 NEVADA
MAP 4.0 2011/04/11 00:21:17 38.374 -118.739 15.3 NEVADA
MAP 3.5 2011/04/11 00:20:17 38.363 -118.741 9.4 NEVADA
MAP 3.3 2011/04/11 00:13:12 38.337 -118.746 10.2 NEVADA
MAP 3.5 2011/04/10 23:06:00 38.374 -118.741 9.7 NEVADA
MAP 3.0 2011/04/10 23:02:16 38.373 -118.738 10.1 NEVADA