2026-08-06 17:50:40 (M4.6) off the east coast of Honshu, Japan 39.6 143.7 (90be5)

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

Preliminary Report

Magnitude	4.6
Date-Time	Universal Time (UTC): 6 Aug 2026 17:50:40 Time near the Epicenter (1): 7 Aug 2026 03:50:40 Time in your area (1): 6 Aug 2026 09:50:40
Location	39.639N 143.670E
Depth	10 km
Distances	148.4 km (92.0 mi) E of Miyako, Japan 149.1 km (92.4 mi) E of Yamada, Japan 155.2 km (96.2 mi) E of Ōtsuchi, Japan 160.2 km (99.3 mi) ENE of Kamaishi, Japan 216.3 km (134.1 mi) E of Morioka, Japan
Location Uncertainty	Horizontal: 7.2 km; Vertical 1.9 km
Parameters	Nph = 39; Dmin = 256.0 km; Rmss = 0.68 seconds; Gp = 123° Version =
Event ID	us 6000timi

(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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