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M4.9 Depth: 35.0 km

M4.9 Earthquake near TONGA

UTC time: 2025-07-31 01:33:28 UTC Local time: —

About this earthquake

On July 31, 2025 at 01:33 UTC, a magnitude M4.9 earthquake occurred near TONGA. 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
2025-07-31 01:33:28 UTC
Local time
—
Country
—
Source
emsc
Coordinates
-22.00130, -175.39230
Temperature
21.9°C

Map

Depth profile

Depth profile Depth: 35 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35 km
Shallow
35 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

  • Tofua Arc at 21.3°S
    Distance: 78 km ·Stratovolcano ·Elevation: -68 m ·Last eruption: 1932 ·Tonga
  • Tofua Arc at 21.1°S
    Distance: 102 km ·Stratovolcano ·Elevation: -65 m ·Tonga
  • Tofua Arc at 20.9°S
    Distance: 129 km ·Stratovolcano ·Elevation: -296 m ·Last eruption: 2017 ·Tonga
  • Hunga Tonga-Hunga Ha'apai
    Distance: 161 km ·Caldera ·Elevation: 114 m ·Last eruption: 2022 ·Tonga
  • Fonuafo'ou
    Distance: 187 km ·Stratovolcano ·Elevation: -17 m ·Last eruption: 1936 ·Tonga
  • Tofua
    Distance: 253 km ·Caldera ·Elevation: 515 m ·Last eruption: 2026 ·Tonga

Stats (last 24h)

Global (24h)
659
Country (24h)
—
—
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