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M4.4 Earthquake near 276 km WNW of Houma, Tonga

UTC time: 2026-09-20 15:33:51 UTC Local time: —
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Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M4.4
Depth
507.1 km
Source
USGS

276 km WNW of Houma, Tonga

Map

About this earthquake

A magnitude M4.4 earthquake was recorded near 276 km WNW of Houma, Tonga on September 20, 2026 at 15:33 UTC. The deep hypocenter at about 507 km dampens the shaking felt at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

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

Details

ID
4f74a2ed1375f1261d417513d6dbd2f0a6fe38f3
Magnitude
M4.4
Depth
507.1 km
UTC time
2026-09-20 15:33:51 UTC
Local time
—
Country
—
Source
usgs
Coordinates
-20.30790, -177.79350
Temperature
20.8°C

Depth profile

Depth profile Depth: 507.1 km (Deep) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 507.1 km
Deep
507.1 km
Why depth matters

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

Depth classes per USGS

Tectonic context

Located on the Australia Plate.
Near the boundary Tonga ↔ Australia · about 170 km away

Volcanoes nearby

  • Tofua Arc at 21.1°S
    Distance: 232 km ·Stratovolcano ·Elevation: -65 m ·Tonga
  • Tofua Arc at 20.9°S
    Distance: 241 km ·Stratovolcano ·Elevation: -296 m ·Last eruption: 2017 ·Tonga
  • Fonuafo'ou
    Distance: 248 km ·Stratovolcano ·Elevation: -17 m ·Last eruption: 1936 ·Tonga
  • Tofua Arc at 21.3°S
    Distance: 250 km ·Stratovolcano ·Elevation: -68 m ·Last eruption: 1932 ·Tonga
  • Hunga Tonga-Hunga Ha'apai
    Distance: 253 km ·Caldera ·Elevation: 114 m ·Last eruption: 2022 ·Tonga
  • Tofua
    Distance: 291 km ·Caldera ·Elevation: 515 m ·Last eruption: 2026 ·Tonga

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

Stats (last 24h)

Global (24h)
597
Country (24h)
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