M4.9 Depth: 206.8 km

M4.9 Earthquake near 88 km N of Nuku‘alofa, Tonga (Tonga)

UTC time: 2025-12-18 03:54:18 UTC Local time: —

About this earthquake

A magnitude M4.9 earthquake was recorded near 88 km N of Nuku‘alofa, Tonga (Tonga) on December 18, 2025 at 03:54 UTC. The earthquake originated at an intermediate depth of about 207 km. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

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

Details

Magnitude

M4.9

Depth

206.8 km

UTC time

2025-12-18 03:54:18 UTC

Local time

—

Country

Tonga

City

Haʻapai

Source

usgs

Coordinates

-20.34630, -175.33140

Temperature

26.2°C

Map

Depth profile

Intermediate

206.8 km

206.8 km — deeper than the regional average (86.9 km)

Regional average: 86.9 km

Why depth matters

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

Depth classes per USGS

Volcanoes nearby

Fonuafo'ou

Distance: 10 km ·Stratovolcano ·Elevation: -17 m ·Last eruption: 1936 ·Tonga
Hunga Tonga-Hunga Ha'apai

Distance: 24 km ·Caldera ·Elevation: 114 m ·Last eruption: 2022 ·Tonga
Tofua Arc at 20.9°S

Distance: 61 km ·Stratovolcano ·Elevation: -296 m ·Last eruption: 2017 ·Tonga
Tofua

Distance: 72 km ·Caldera ·Elevation: 515 m ·Last eruption: 2026 ·Tonga
Kao

Distance: 82 km ·Stratovolcano ·Elevation: 1'009 m ·Last eruption: 1847 ·Tonga
Tofua Arc at 21.1°S

Distance: 99 km ·Stratovolcano ·Elevation: -65 m ·Tonga

Historic earthquake map · Tonga

Open history map

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Country statistics · Tonga

Country overview

View earthquake KPIs, strongest and latest events, and averages for this country.

Stats (last 24h)

Global (24h)

613

Country (24h)