Quakes

140 km se of chignik, alaska

USGS-AK0219P0HP3K

issued: 2021-07-30 03:52Z
status: cancelled 2021-08-02 03:52Z
self-cancels: 2021-08-02 03:52Z
authority: USGS NEIC
sea: Gulf of Alaska
position: 55.334, -156.961
source: usgs · first seen 2026-09-03 15:13Z

Original warning text

140 KM SE OF CHIGNIK, ALASKA.
1. EARTHQUAKE MAGNITUDE 5.5 (MWW) IN 55.334N 156.961W, DEPTH 43 KM AT 300352Z JUL 21.
2. USGS EVENT AK0219P0HP3K. https://earthquake.usgs.gov/earthquakes/eventpage/ak0219p0hp3k

This area · earthquake & tsunami bulletins

82 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now

133 km se of old harbor, alaska2025-09-01
91 km sse of sand point, alaska2025-07-20
96 km sse of sand point, alaska2025-07-17
2025 sand point, alaska earthquake2025-07-16
155 km ssw of akhiok, alaska2025-02-13
146 km sse of sand point, alaska2024-08-01

Season · when earthquake & tsunami bulletins happen here

month of issue, all years in the archive

Timeline · 7 messages since 2021-07-29 · closed 2021-08-17

2021 chignik, alaska earthquake2021-07-29 → 2021-08-01
106 km sse of perryville, alaska2021-07-29 → 2021-08-01
127 km se of chignik, alaska2021-07-29 → 2021-08-01
Earthquake with magnitude of 8.2 has occurred in vicinity 55-18N 157-48W at 290616Z jul2021-07-29 → 2021-07-29
Cancel NAVAREA XII 365/21 and this msg, tsunami warning cancelled2021-07-29 → 2021-07-29
140 km se of chignik, alaska this message2021-07-30 → 2021-08-02
125 km se of perryville, alaska2021-08-14 → 2021-08-17

joined by chain + proximity

Nearby now · within 120 nm

Nothing else in force within 120 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.