Earthquake Details

  • This is a computer-generated message — this event has not yet been reviewed by a seismologist.
Magnitude 8.9
Date-Time
Location 38.322°N, 142.369°E
Depth 24.4 km (15.2 miles) set by location program
Region NEAR THE EAST COAST OF HONSHU, JAPAN
Distances 130 km (80 miles) E of Sendai, Honshu, Japan
178 km (110 miles) E of Yamagata, Honshu, Japan
178 km (110 miles) ENE of Fukushima, Honshu, Japan
373 km (231 miles) NE of TOKYO, Japan
Location Uncertainty horizontal +/- 13.5 km (8.4 miles); depth fixed by location program
Parameters NST=350, Nph=351, Dmin=416.3 km, Rmss=1.46 sec, Gp= 29°,
M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=A
Source
  • USGS NEIC (WDCS-D)
Event ID usc0001xgp

Earthquake Location

Magnitude 8.9 NEAR EAST COAST OF HONSHU, JAPAN
Friday, March 11, 2011 at 05:46:23 UTC

Earthquake LocationWorld Location
Earthquake Location
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

Earthquake Location
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

Map of JAPAN
Map of JAPAN

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

Source: http://neic.usgs.gov/neis/eq_depot/2011/eq_110311_c0001xgp/neic_c0001xgp_l.html