2026-03-21 11:12:04 (M5.4) Ryukyu Islands, Japan 29.4 130.7 (70fa9)

M5.4 Earthquake - Ryukyu Islands, Japan

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 21 Mar 2026 11:12:05 Time near the Epicenter (1): 21 Mar 2026 20:12:05 Time in your area (1): 21 Mar 2026 16:42:05
Location	29.428N 130.726E
Depth	25 km
Distances	91.3 km (56.6 mi) SSE of Koshima, Japan 147.1 km (91.2 mi) S of Nishinoomote, Japan 168.9 km (104.7 mi) NE of Naze, Japan 200.3 km (124.2 mi) S of Ibusuki, Japan 237.7 km (147.4 mi) S of Kagoshima, Japan
Location Uncertainty	Horizontal: 6.9 km; Vertical 4.9 km
Parameters	Nph = 86; Dmin = 232.2 km; Rmss = 1.17 seconds; Gp = 94° Version =
Event ID	us 6000si57

(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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