Quakes · tsunami

125 km se of perryville, alaska

USGS-US6000F652

issued
2021-08-14 11:57Z
status
cancelled 2021-08-17 11:57Z
self-cancels
2021-08-17 11:57Z
authority
USGS NEIC
sea
Gulf of Alaska
position
55.177, -157.644
source
usgs · first seen 2026-09-03 15:13Z

Original warning text

125 KM SE OF PERRYVILLE, ALASKA.
1. EARTHQUAKE MAGNITUDE 6.9 (MWW) IN 55.177N 157.644W, DEPTH 21 KM AT 141157Z AUG 21.
2. A TSUNAMI MESSAGE WAS ISSUED FOR THIS EVENT. FOLLOW THE TSUNAMI WARNING CENTRES.
3. USGS EVENT US6000F652. https://earthquake.usgs.gov/earthquakes/eventpage/us6000f652

This area · earthquake & tsunami bulletins

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

97
00
05
10
15
20
25

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

  1. 2021 chignik, alaska earthquake2021-07-29 → 2021-08-01
  2. 106 km sse of perryville, alaska2021-07-29 → 2021-08-01
  3. 127 km se of chignik, alaska2021-07-29 → 2021-08-01
  4. Earthquake with magnitude of 8.2 has occurred in vicinity 55-18N 157-48W at 290616Z jul2021-07-29 → 2021-07-29
  5. Cancel NAVAREA XII 365/21 and this msg, tsunami warning cancelled2021-07-29 → 2021-07-29
  6. 140 km se of chignik, alaska2021-07-30 → 2021-08-02
  7. 125 km se of perryville, alaska this message2021-08-14 → 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.