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M5.1 Depth: 11.2 km

M5.1 Earthquake near NEW BRITAIN REGION, P.N.G.

UTC time: 2025-08-28 04:31:38 UTC Local time: —

About this earthquake

On August 28, 2025 at 04:31 UTC, a magnitude M5.1 earthquake occurred near NEW BRITAIN REGION, P.N.G.. With a focal depth of about 11 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude can damage poorly built structures.

The data is provided by EMSC and cross-checked across seismological networks.

Details

Magnitude
M5.1
Depth
11.2 km
UTC time
2025-08-28 04:31:38 UTC
Local time
—
Country
—
Source
emsc
Coordinates
-5.64880, 152.50920
Temperature
28.3°C

Map

Depth profile

Depth profile Depth: 11.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11.2 km
Shallow
11.2 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Kokopo147.6 kmN26'273
Port Moresby728.0 kmSW283'733

GeoNames · CC BY 4.0

Volcanoes nearby

  • Ulawun
    Distance: 147 km ·Stratovolcano ·Elevation: 2'334 m ·Last eruption: 2025 ·Papua New Guinea
  • Bamus
    Distance: 150 km ·Stratovolcano ·Elevation: 2'248 m ·Last eruption: 1886 ·Papua New Guinea
  • Rabaul
    Distance: 160 km ·Caldera ·Elevation: 688 m ·Last eruption: 2014 ·Papua New Guinea
  • Hargy
    Distance: 160 km ·Stratovolcano ·Elevation: 1'148 m ·Last eruption: 950 ·Papua New Guinea
  • Lolobau
    Distance: 170 km ·Caldera ·Elevation: 878 m ·Last eruption: 1912 ·Papua New Guinea
  • Sulu Range
    Distance: 174 km ·Stratovolcano(es) ·Elevation: 610 m ·Papua New Guinea

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours0
First 24 hours0
First 72 hours0
Strongest subsequent eventM6.1
M5.22025-09-04 09:38:35 UTC136.9 kmNew Ireland Region, Papua New Guinea M5.32025-09-04 09:38:41 UTC136.2 km149 km ESE of Kokopo, Papua New Guinea M5.32025-09-04 09:38:41 UTC128.0 kmNEW IRELAND REGION, P.N.G. M5.12025-09-04 09:38:48 UTC91.8 kmEvent of magnitude 5.1, near of Port Moresby (Monde) M6.02025-09-16 16:59:46 UTC141.0 kmNew Ireland Region, Papua New Guinea M6.02025-09-16 16:59:46 UTC125.5 kmEvent of magnitude 6.0, near of Port Moresby (Monde) M6.02025-09-16 16:59:51 UTC139.0 kmNEW IRELAND REGION, P.N.G. M6.12025-09-16 16:59:52 UTC145.8 kmPapua New Guinea [Sea] M4.62025-09-21 01:34:06 UTC37.5 kmNEW BRITAIN REGION, P.N.G.

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#13
Earlier events M≥4166
Earlier events M≥540
Compared since2025-01-01

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M6.92025-04-04 20:04:38 UTC125.7 km181 km ESE of Kimbe, Papua New Guinea M6.52025-04-04 20:04:39 UTC103.0 km194 km ESE of Kimbe, Papua New Guinea M6.22025-04-12 03:47:13 UTC131.4 km M6.12025-04-12 03:47:09 UTC128.2 km105 km ESE of Kokopo, Papua New Guinea M5.52025-04-12 03:47:24 UTC82.6 kmNew Ireland

Stats (last 24h)

Global (24h)
659
Country (24h)
—
—
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