2025-09-29 17:28:03 (M4.6) off the east coast of Honshu, Japan 38.0 143.9 (90be5)

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

Preliminary Report

Magnitude	4.6
Date-Time	Universal Time (UTC): 29 Sep 2025 17:28:04 Time near the Epicenter (1): 30 Sep 2025 03:28:04 Time in your area (1): 29 Sep 2025 09:28:04
Location	37.979N 143.883E
Depth	10 km
Distances	219.5 km (136.1 mi) ESE of Onagawa Chō, Japan 224.5 km (139.2 mi) ESE of Ōfunato, Japan 227.0 km (140.7 mi) SE of Kamaishi, Japan 231.3 km (143.4 mi) SE of Ōtsuchi, Japan 266.4 km (165.2 mi) E of Sendai, Japan
Location Uncertainty	Horizontal: 8.9 km; Vertical 1.9 km
Parameters	Nph = 35; Dmin = 395.4 km; Rmss = 0.76 seconds; Gp = 152° Version =
Event ID	us 6000rdm7

(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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