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M5.5 Depth: 10.0 km

M5.5 Earthquake near south of Tonga

UTC time: 2025-08-23 00:10:55 UTC Local time: —
M5.5 earthquake near south of Tonga on Aug 23, 2025 — map of epicenter and shaking intensity | QuakeMap24
M5.5 Earthquake near south of Tonga · 2025-08-23 00:10:55 UTC

About this earthquake

On August 23, 2025 at 00:10 UTC, a magnitude M5.5 earthquake occurred near south of Tonga. With a focal depth of about 10 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 USGS and cross-checked across seismological networks.

Details

Magnitude
M5.5
Depth
10.0 km
UTC time
2025-08-23 00:10:55 UTC
Local time
—
Country
—
Source
usgs
Coordinates
-24.66390, -175.89880
Temperature
18.5°C

Map

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 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
Nuku'alofa398.6 kmN22'400

GeoNames · CC BY 4.0

Volcanoes nearby

  • Kermadec Arc at 24.8°S
    Distance: 114 km ·Stratovolcano ·Elevation: -385 m ·Tonga
  • Monowai
    Distance: 188 km ·Stratovolcano ·Elevation: -132 m ·Last eruption: 2014 ·New Zealand
  • Tofua Arc at 21.3°S
    Distance: 371 km ·Stratovolcano ·Elevation: -68 m ·Last eruption: 1932 ·Tonga
  • Tofua Arc at 21.1°S
    Distance: 391 km ·Stratovolcano ·Elevation: -65 m ·Tonga
  • Tofua Arc at 20.9°S
    Distance: 425 km ·Stratovolcano ·Elevation: -296 m ·Last eruption: 2017 ·Tonga
  • Hunga Tonga-Hunga Ha'apai
    Distance: 460 km ·Caldera ·Elevation: 114 m ·Last eruption: 2022 ·Tonga

Subsequent earthquakes nearby

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

First 6 hours3
First 24 hours3
First 72 hours3
Strongest subsequent eventM6.0
M5.22025-08-23 00:10:56 UTC24.4 kmEvent of magnitude 5.2, near of Auckland (Monde) M6.02025-08-23 00:11:01 UTC79.1 kmSouth of Tonga Islands [Sea: Tonga] M5.02025-08-23 00:43:45 UTC11.0 kmSOUTH OF TONGA M5.22025-08-27 00:10:38 UTC34.2 kmsouth of Tonga M5.02025-09-03 22:56:13 UTC134.4 km246 km SSW of ‘Ohonua, Tonga M5.22025-09-05 01:27:38 UTC147.2 kmTonga Islands Region M5.02025-09-05 13:58:49 UTC125.8 kmSOUTH OF FIJI ISLANDS

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#6
Earlier events M≥440
Earlier events M≥524
Compared since2025-01-12

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

Strongest earlier events

M6.02025-02-07 10:26:59 UTC86.6 kmsouth of the Fiji Islands M5.72025-08-18 23:03:12 UTC75.2 kmSouth of Tonga Islands [Sea: Tonga] M5.72025-08-16 22:52:05 UTC66.8 kmSouth of Tonga Islands M5.62025-08-18 23:03:12 UTC16.9 kmSOUTH OF TONGA M5.62025-08-18 23:03:09 UTC26.3 kmSouth of Tonga Islands

Stats (last 24h)

Global (24h)
693
Country (24h)
—
—
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No recent events available.

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