Quakes

180 km nw of hihifo, tonga

180 km NW of Hihifo, Tonga · USGS-US6000TX3M

What this record establishes

Listed in force

The latest collected record lists this warning as active. This is the status of the notice, not a live observation of conditions at the location.

Source and dates: USGS earthquakes at sea, M 5.5+ (FDSN event service) · USGS NEIC. Issued 2026-09-23 14:41Z. First collected 2026-09-23 18:18Z; last seen in collection 2026-09-23 18:18Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: 180 km NW of Hihifo, Tonga. The parsed report position is -14.937, -175.111. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the South Pacific Ocean →

issued: 2026-09-23 14:41Z
status: Listed in force
self-cancels: 2026-09-26 14:41Z
authority: USGS NEIC
sea: South Pacific Ocean
position: -14.937, -175.111
nearest port: Apia · 206 nm
source: USGS earthquakes at sea, M 5.5+ (FDSN event service) · first seen 2026-09-23 18:18Z

Original warning text

180 KM NW OF HIHIFO, TONGA.
1. EARTHQUAKE MAGNITUDE 5.7 (MWW) IN 14.937S 175.111W, DEPTH 10 KM AT 231441Z SEP 26.
2. USGS EVENT US6000TX3M. https://earthquake.usgs.gov/earthquakes/eventpage/us6000tx3m

Conditions at the position · now

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MET Norway · NOAA WaveWatch III · HYCOM · GEBCO 2020 · model data at the centroid, not an observation

Collected reports in this area · earthquake & tsunami bulletins

360 within 180 nm since 1997 · 15 in the last 12 months · 1 listed in force now

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

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 2026-09-23 23:37Z; 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.