M4.9 Depth: 71.2 km

M4.9 Earthquake near Ongo Niua (Tonga)

UTC time: 2026-07-22 21:58:51 UTC Local time: —

About this earthquake

A magnitude M4.9 earthquake was recorded near Ongo Niua (Tonga) on July 22, 2026 at 21:58 UTC. At around 71 km, the focal depth places this among intermediate-depth events. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by USGS.

Details

Magnitude

M4.9

Depth

71.2 km

UTC time

2026-07-22 21:58:51 UTC

Local time

—

Country

Tonga

State

Ongo Niua

City

Ongo Niua

Source

usgs

Coordinates

-15.83220, -173.90280

Temperature

25.0°C

Map

Depth profile

Intermediate

71.2 km

71.2 km — close to the regional average (84.4 km)

Regional average: 84.4 km

Why depth matters

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

Depth classes per USGS

Tectonic context

Located on the Tonga Plate.

Near the boundary Tonga ↔ Niuafoʻou · about 69 km away

Volcanoes nearby

Tafahi

Distance: 17 km ·Stratovolcano ·Elevation: 546 m ·Tonga
Curacoa

Distance: 34 km ·Complex ·Elevation: -33 m ·Last eruption: 1979 ·Tonga
Niuatahi

Distance: 53 km ·Caldera ·Elevation: -1'270 m ·Tonga
Tafu-Maka

Distance: 62 km ·Fissure vent ·Elevation: -1'400 m ·Last eruption: 2008 ·Tonga
West Mata

Distance: 83 km ·Fissure vent(s) ·Elevation: -1'174 m ·Last eruption: 2009 ·Tonga
Niuafo'ou

Distance: 187 km ·Shield ·Elevation: 260 m ·Last eruption: 1946 ·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)

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