M4.9 Depth: 35.0 km

M4.9 Earthquake near TONGA (Tonga)

UTC time: 2025-08-10 16:36:08 UTC Local time: —

About this earthquake

A magnitude M4.9 earthquake was recorded near TONGA (Tonga) on August 10, 2025 at 16:36 UTC. With a focal depth of about 35 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

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

Details

Magnitude

M4.9

Depth

35.0 km

UTC time

2025-08-10 16:36:08 UTC

Local time

—

Country

Tonga

City

Haʻapai

Source

emsc

Coordinates

-20.68720, -175.43280

Temperature

21.6°C

Map

Depth profile

Shallow

35 km

35 km — shallower than the regional average (86.9 km)

Regional average: 86.9 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

Volcanoes nearby

Hunga Tonga-Hunga Ha'apai

Distance: 16 km ·Caldera ·Elevation: 114 m ·Last eruption: 2022 ·Tonga
Tofua Arc at 20.9°S

Distance: 22 km ·Stratovolcano ·Elevation: -296 m ·Last eruption: 2017 ·Tonga
Fonuafo'ou

Distance: 41 km ·Stratovolcano ·Elevation: -17 m ·Last eruption: 1936 ·Tonga
Tofua Arc at 21.1°S

Distance: 61 km ·Stratovolcano ·Elevation: -65 m ·Tonga
Tofua Arc at 21.3°S

Distance: 76 km ·Stratovolcano ·Elevation: -68 m ·Last eruption: 1932 ·Tonga
Tofua

Distance: 111 km ·Caldera ·Elevation: 515 m ·Last eruption: 2026 ·Tonga

Historic earthquake map · Tonga

Open history map

Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

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)