7.8 - BONIN ISLANDS, JAPAN REGION

Preliminary Earthquake Report
Magnitude 7.8
Date-Time
  • 30 May 2015 11:23:02 UTC
  • 30 May 2015 20:23:03 near epicenter
  • 30 May 2015 03:23:02 standard time in your timezone
Location 27.831N 140.493E
Depth 677 km
Distances
  • 189 km (117 mi) WNW of Chichi-shima, Japan
  • 771 km (478 mi) SSE of Shimoda, Japan
  • 781 km (484 mi) SSE of Oyama, Japan
  • 783 km (485 mi) SE of Shingu, Japan
  • 874 km (542 mi) S of Tokyo, Japan
Location Uncertainty Horizontal: 9.4 km; Vertical 9.3 km
Parameters Nph = 111; Dmin = 186.2 km; Rmss = 0.67 seconds; Gp = 28°
Version =
Event ID us 20002ki3

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