6.0 Mw - OFF EAST COAST OF HONSHU, JAPAN

Preliminary Earthquake Report
Magnitude 6.0 Mw
Date-Time
  • 21 Apr 2011 01:54:40 UTC
  • 21 Apr 2011 11:54:40 near epicenter
  • 20 Apr 2011 17:54:40 standard time in your timezone
Location 40.319N 143.676E
Depth 3 km
Distances
  • 185 km (115 miles) E (96 degrees) of Hachinohe, Honshu, Japan
  • 227 km (141 miles) ENE (72 degrees) of Morioka, Honshu, Japan
  • 256 km (159 miles) ESE (102 degrees) of Aomori, Honshu, Japan
  • 621 km (386 miles) NNE (32 degrees) of TOKYO, Japan
Location Uncertainty Horizontal: 16.5 km; Vertical 5.9 km
Parameters Nph = 370; Dmin = 193.7 km; Rmss = 0.65 seconds; Gp = 64°
M-type = Mw; Version = A
Event ID US c0002w18

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