2026-04-21 05:29:09 (M5.4) off the east coast of Honshu, Japan 39.8 143.6 (70fa9)

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

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 21 Apr 2026 05:29:09 Time near the Epicenter (1): 21 Apr 2026 15:29:09 Time in your area (1): 21 Apr 2026 10:59:09
Location	39.848N 143.627E
Depth	10 km
Distances	146.3 km (90.7 mi) E of Miyako, Japan 150.0 km (93.0 mi) ENE of Yamada, Japan 157.7 km (97.8 mi) ENE of Ōtsuchi, Japan 163.1 km (101.1 mi) ESE of Kuji, Japan 212.9 km (132.0 mi) E of Morioka, Japan
Location Uncertainty	Horizontal: 7.9 km; Vertical 1.9 km
Parameters	Nph = 97; Dmin = 241.6 km; Rmss = 1.03 seconds; Gp = 95° Version =
Event ID	us 6000srs6

(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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