Quakes

Earthquake magnitude 5.9 (mww) in 52.120S 027.958E, depth 10 km at 231912Z dec 11

South of Africa · USGS-USP000JCJP

issued
2011-12-23 19:12Z
status
cancelled 2011-12-26 19:12Z
self-cancels
2011-12-26 19:12Z
authority
USGS NEIC
sea
Indian Ocean
position
-52.120, 27.958
source
usgs · first seen 2026-09-03 15:13Z

Original warning text

SOUTH OF AFRICA.
1. EARTHQUAKE MAGNITUDE 5.9 (MWW) IN 52.120S 027.958E, DEPTH 10 KM AT 231912Z DEC 11.
2. USGS EVENT USP000JCJP. https://earthquake.usgs.gov/earthquakes/eventpage/usp000jcjp

This area · earthquake & tsunami bulletins

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

97
00
05
10
15
20
24

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 2011-12-23 · closed 2012-01-15

  1. Earthquake magnitude 5.9 (mww) in 52.120S 027.958E, depth 10 km at 231912Z dec 11 this message2011-12-23 → 2011-12-26
  2. Earthquake magnitude 5.5 (mwc) in 52.113S 028.152E, depth 10 km at 121411Z jan 122012-01-12 → 2012-01-15

joined by 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.