Quakes · tsunami
93 km sw of nikolski, alaska
USGS-US6000SB0H
- issued
- 2026-02-23 10:02Z
- status
- cancelled 2026-02-26 10:02Z
- self-cancels
- 2026-02-26 10:02Z
- authority
- USGS NEIC
- sea
- North Pacific Ocean
- position
- 52.366, -169.871
- source
- usgs · first seen 2026-09-03 15:13Z
Original warning text
93 KM SW OF NIKOLSKI, ALASKA. 1. EARTHQUAKE MAGNITUDE 5.5 (MWW) IN 52.366N 169.871W, DEPTH 8 KM AT 231002Z FEB 26. 2. A TSUNAMI MESSAGE WAS ISSUED FOR THIS EVENT. FOLLOW THE TSUNAMI WARNING CENTRES. 3. USGS EVENT US6000SB0H. https://earthquake.usgs.gov/earthquakes/eventpage/us6000sb0h
This area · earthquake & tsunami bulletins
110 within 180 nm since 1997 · 7 in the last 12 months · 1 in force now
97
00
05
10
15
20
25
26
- 84 km ssw of nikolski, alaska2026-09-03
- 103 km se of atka, alaska2026-07-26
- 172 km ene of atka, alaska2026-05-22
- 92 km s of nikolski, alaska2026-03-05
- 96 km sw of nikolski, alaska2026-02-23
- 92 km ssw of nikolski, alaska2025-09-03
Season · when earthquake & tsunami bulletins happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Timeline · 2 messages since 2026-02-23 · closed 2026-02-26
- 96 km sw of nikolski, alaska2026-02-23 → 2026-02-26
- 93 km sw of nikolski, alaska this message2026-02-23 → 2026-02-26
joined by proximity
Nearby now · within 120 nm
- 84 km ssw of nikolski, alaskaQuakes · 18.2 nm
Worldwide now
5 earthquake & tsunami bulletins in force · see all
Quakes
Undersea earthquakes of magnitude 5.5 and above (USGS) and the tsunami bulletins NAVAREA coordinators relay. All current earthquake & tsunami bulletins →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.