2025-08-06 07:04:10 (M4.6) off the east coast of Honshu, Japan 40.7 145.1 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.6 Earthquake - off the east coast of Honshu, Japan

Preliminary Report

Magnitude	4.6
Date-Time	Universal Time (UTC): 6 Aug 2025 07:04:11 Time near the Epicenter (1): 6 Aug 2025 17:04:11 Time in your area (1): 5 Aug 2025 23:04:11
Location	40.745N 145.135E
Depth	10 km
Distances	229.5 km (142.3 mi) SE of Hiroo, Japan 251.3 km (155.8 mi) SE of Urakawa, Japan 255.6 km (158.5 mi) SSE of Kushiro, Japan 288.8 km (179.0 mi) S of Nemuro, Japan 358.4 km (222.2 mi) ENE of Morioka, Japan
Location Uncertainty	Horizontal: 9.2 km; Vertical 1.9 km
Parameters	Nph = 57; Dmin = 217.5 km; Rmss = 0.60 seconds; Gp = 136° Version =
Event ID	us 6000qyhb

(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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