Quakes

Earthquake magnitude 5.5 (mwc) in 56.533S 143.727W, depth 10 km at 141107Z dec 11

Pacific-antarctic Ridge · USGS-USP000JC68

issued
2011-12-14 11:07Z
status
cancelled 2011-12-17 11:07Z
self-cancels
2011-12-17 11:07Z
authority
USGS NEIC
sea
South Pacific Ocean
position
-56.533, -143.727
source
usgs · first seen 2026-09-03 15:13Z

Original warning text

PACIFIC-ANTARCTIC RIDGE.
1. EARTHQUAKE MAGNITUDE 5.5 (MWC) IN 56.533S 143.727W, DEPTH 10 KM AT 141107Z DEC 11.
2. USGS EVENT USP000JC68. https://earthquake.usgs.gov/earthquakes/eventpage/usp000jc68

This area · earthquake & tsunami bulletins

74 within 180 nm since 1997 · 2 in the last 12 months · 0 in force now

97
00
05
10
15
20
25
26

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

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.