Quakes

A magnitude 5.6 earthquake struck 74 km east-southeast of Kokopo, Papua New Guinea, at depth 58 km on 26 September at 1408 UTC.

74 km ESE of Kokopo, Papua New Guinea · USGS-US6000TXTC

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 2026-09-26 14:08Z. First collected 2026-09-26 18:18Z; last seen in collection 2026-09-26 18:18Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
74 km ESE of Kokopo, Papua New Guinea. The parsed report position is -4.695, 152.838. 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 Bismarck Sea →

issued
2026-09-26 14:08Z
status
Listed in force
self-cancels
2026-09-29 14:08Z
authority
USGS NEIC
issued by
USGS NEIC
sea
Bismarck Sea
position
-4.695, 152.838
nearest port
Rabaul · 48 nm
source
USGS earthquakes at sea, M 5.5+ (FDSN event service) · first seen 2026-09-26 18:18Z

Original warning text

74 KM ESE OF KOKOPO, PAPUA NEW GUINEA.
1. EARTHQUAKE MAGNITUDE 5.6 (MWW) IN 4.695S 152.838E, DEPTH 58 KM AT 261408Z SEP 26.
2. USGS EVENT US6000TXTC. https://earthquake.usgs.gov/earthquakes/eventpage/us6000txtc

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.

All warning terms →

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

480 within 180 nm since 1997 · 3 in the last 12 months · 1 listed in force now

97
00
05
10
15
20
25
26

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 2026-09-26 21:08Z; 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.