6.4 Mw - NEAR EAST COAST OF HONSHU, JAPAN

Preliminary Earthquake Report
Magnitude 6.4 Mw
Date-Time
  • 11 Apr 2011 23:08:16 UTC
  • 12 Apr 2011 08:08:16 near epicenter
  • 11 Apr 2011 15:08:16 standard time in your timezone
Location 35.406N 140.542E
Depth 13 km
Distances
  • 77 km (48 miles) ESE (112 degrees) of TOKYO, Japan
  • 107 km (66 miles) S (177 degrees) of Mito, Honshu, Japan
  • 173 km (107 miles) SE (129 degrees) of Maebashi, Honshu, Japan
Location Uncertainty Horizontal: 14.7 km; Vertical 6.0 km
Parameters Nph = 282; Dmin = 246.0 km; Rmss = 1.19 seconds; Gp = 50°
M-type = Mw; Version = 9
Event ID US c0002nzx

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