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M6.0 Earthquake near South of Tonga Islands [Sea: Tonga]

UTC time: 2025-08-23 00:11:01 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis. How our reports are produced ↗

Magnitude
M6.0
Depth
99.2 km
Source
INGV

South of Tonga Islands [Sea: Tonga]

Map

M6.0 Earthquake near South of Tonga Islands [Sea: Tonga] · 2025-08-23 — Map showing the location of the epicenter
M6.0 Earthquake near South of Tonga Islands [Sea: Tonga] · 2025-08-23 — Map showing the location of the epicenter

About this earthquake

A magnitude M6.0 earthquake was recorded near South of Tonga Islands [Sea: Tonga] on August 23, 2025 at 00:11 UTC. The earthquake originated at an intermediate depth of about 99 km. Events of this size are considered strong and can be dangerous in inhabited regions.

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

Details

ID
042905b2ac2eb9e9e9361df14ab2516e8edcaf68
Magnitude
M6.0
Depth
99.2 km
UTC time
2025-08-23 00:11:01 UTC
Local time
—
Country
—
Source
ingv
Coordinates
-24.33520, -175.20500
Temperature
18.5°C

Depth profile

Depth profile Depth: 99.2 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 99.2 km
Intermediate
99.2 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Nearby population centers

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

PlaceDistanceDirectionPopulation
Nuku'alofa355.6 kmN22'400

GeoNames · CC BY 4.0

Volcanoes nearby

Subsequent earthquakes nearby

Events recorded after this earthquake within 250 km. They are not automatically classified as aftershocks.

First 6 hours1
First 24 hours1
First 72 hours1
Strongest subsequent eventM5.2
M5.02025-08-23 00:43:45 UTC88.7 kmSOUTH OF TONGA M5.22025-08-27 00:10:38 UTC74.3 kmsouth of Tonga M5.02025-09-03 22:56:13 UTC103.8 km246 km SSW of ‘Ohonua, Tonga M5.22025-09-05 01:27:38 UTC95.2 kmTonga Islands Region M5.02025-09-05 01:27:41 UTC114.2 kmTONGA REGION M5.02025-09-05 13:58:49 UTC198.9 kmSOUTH OF FIJI ISLANDS

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Historical context nearby

Comparison with recorded earthquakes before this event within 250 km.

Magnitude rank#1
Earlier events M≥479
Earlier events M≥541
Compared since2025-01-12

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

Strongest earlier events

M6.02025-05-25 10:49:53 UTC158.4 kmTonga Islands Region M6.02025-05-25 10:49:53 UTC180.1 kmTONGA REGION M6.02025-02-07 10:26:59 UTC105.9 kmsouth of the Fiji Islands M5.72025-08-18 23:03:12 UTC4.2 kmSouth of Tonga Islands [Sea: Tonga] M5.72025-08-16 22:52:05 UTC39.2 kmSouth of Tonga Islands

Stats (last 24h)

Global (24h)
510
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

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