2026-02-26 20:07:52 (M4.0) Sea of Okhotsk 48.2 146.4 (90be5)

M4.0 Earthquake - Sea of Okhotsk

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 26 Feb 2026 20:07:52 Time near the Epicenter (1): 27 Feb 2026 06:07:52 Time in your area (1): 26 Feb 2026 12:07:52
Location	48.178N 146.388E
Depth	480 km
Distances	268.6 km (166.5 mi) ESE of Poronaysk, Russia 285.6 km (177.1 mi) ENE of Dolinsk, Russia 306.6 km (190.1 mi) ENE of Yuzhno-Sakhalinsk, Russia 322.0 km (199.7 mi) ENE of Korsakov, Russia 332.0 km (205.8 mi) ESE of Shakhtersk, Russia
Location Uncertainty	Horizontal: 12.8 km; Vertical 8.0 km
Parameters	Nph = 50; Dmin = 304.9 km; Rmss = 0.55 seconds; Gp = 133° Version =
Event ID	us 7000s0kh

(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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