2026-08-06 17:43:36 (M5.4) off the east coast of Honshu, Japan 39.6 143.6 (70fa9)

M5.4 Earthquake - off the east coast of Honshu, Japan

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 6 Aug 2026 17:43:37 Time near the Epicenter (1): 7 Aug 2026 03:43:37 Time in your area (1): 6 Aug 2026 23:13:37
Location	39.583N 143.641E
Depth	10 km
Distances	145.9 km (90.5 mi) E of Yamada, Japan 146.2 km (90.6 mi) E of Miyako, Japan 151.7 km (94.1 mi) E of Ōtsuchi, Japan 156.4 km (96.9 mi) ENE of Kamaishi, Japan 214.2 km (132.8 mi) E of Morioka, Japan
Location Uncertainty	Horizontal: 8.2 km; Vertical 1.8 km
Parameters	Nph = 126; Dmin = 257.1 km; Rmss = 0.55 seconds; Gp = 98° Version =
Event ID	us 6000timf

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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