Update: Earthquake Magnitude 7.1 - EASTERN HONSHU, JAPAN, 2011 April 11


Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude7.1
Date-Time
  • Monday, April 11, 2011 at 08:16:13 UTC

Location37.007°N, 140.477°E
Depth10 km (6.2 miles)
RegionEASTERN HONSHU, JAPAN
Distances36 km (22 miles) W of Iwaki, Honshu, Japan
44 km (27 miles) SSE of Koriyama, Honshu, Japan
71 km (44 miles) N of Mito, Honshu, Japan
161 km (100 miles) NNE of TOKYO, Japan
Location Uncertaintyhorizontal +/- 12 km (7.5 miles); depth +/- 3.6 km (2.2 miles)
ParametersNST=581, Nph=584, Dmin=209.3 km, Rmss=0.69 sec, Gp= 18°,
M-type=regional moment magnitude (Mw), Version=C
Source
  • USGS NEIC (WDCS-D)