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M4.2 Depth: 349.5 km

M4.2 Earthquake near 296 km WNW of Houma, Tonga

UTC time: 2026-06-28 19:49:43 UTC Local time: —

About this earthquake

A magnitude M4.2 earthquake was recorded near 296 km WNW of Houma, Tonga on June 28, 2026 at 19:49 UTC. At roughly 349 km, the focus was very deep, so surface shaking tends to be weaker. 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
M4.2
Depth
349.5 km
UTC time
2026-06-28 19:49:43 UTC
Local time
—
Country
—
Source
usgs
Coordinates
-20.41750, -178.03240
Temperature
21.8°C

Map

Depth profile

Depth profile Depth: 349.5 km (Deep) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 349.5 km
Deep
349.5 km
Why depth matters

Deep quakes are felt over very large areas but rarely cause surface damage.

Depth classes per USGS

Volcanoes nearby

  • Tofua Arc at 21.1°S
    Distance: 251 km ·Stratovolcano ·Elevation: -65 m ·Tonga
  • Tofua Arc at 20.9°S
    Distance: 263 km ·Stratovolcano ·Elevation: -296 m ·Last eruption: 2017 ·Tonga
  • Tofua Arc at 21.3°S
    Distance: 268 km ·Stratovolcano ·Elevation: -68 m ·Last eruption: 1932 ·Tonga
  • Fonuafo'ou
    Distance: 273 km ·Stratovolcano ·Elevation: -17 m ·Last eruption: 1936 ·Tonga
  • Hunga Tonga-Hunga Ha'apai
    Distance: 276 km ·Caldera ·Elevation: 114 m ·Last eruption: 2022 ·Tonga
  • Tofua
    Distance: 318 km ·Caldera ·Elevation: 515 m ·Last eruption: 2026 ·Tonga

Stats (last 24h)

Global (24h)
554
Country (24h)
—
—
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