Quakes

An earthquake occurred at 121110Z sep

Indian Ocean · HYDROPAC 1576/07

What this record establishes

Archived notice · 2007-09-17 14:34Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · TSUNAMI WARNING CENTER 01 121124Z SEP 07.. Issued 2007-09-12 11:53Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Indian Ocean. The parsed report position is -4.083, 101.050. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.

  1. USGS-OFFICIAL20070912111026830_342007-09-12 · Cancelled notice
  2. USGS-USP000FMZ82007-09-12 · Cancelled notice
  3. HYDROPAC 1576/07 · this notice2007-09-12 · Archived notice
  4. USGS-USP000FN7P2007-09-14 · Cancelled notice
  5. USGS-USP000FN7R2007-09-14 · Cancelled notice
  6. USGS-USP000FP0G2007-09-24 · Cancelled notice
Compare all 13 notices, changes and original texts →

Current notices and reporting history in the Indian Ocean →

issued
2007-09-12 11:53Z
status
Archived notice
authority
TSUNAMI WARNING CENTER 01 121124Z SEP 07.
issued by
TSUNAMI WARNING CENTER
sea
Indian Ocean
position
-4.083, 101.050
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

AN EARTHQUAKE OCCURRED AT 121110Z SEP. PRELIMINARY MAG 7.9,
PRELIMINARY LOCATION 04-05S 101-03E.
A TSUNAMI WATCH IS IN AFFECT.
VESSELS IN VICINITY ARE ADVISED TO USE CAUTION.

Reading this warning

Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.

All warning terms →

Collected reports in this area · earthquake & tsunami bulletins

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

97
00
05
10
15
20
25

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

3 earthquake & tsunami bulletins listed in force · see all

Record snapshot 2026-10-02 09:37Z; source collection times vary.

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.