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Earthquake · Reviewed by USGS

M4.9 earthquake 99 km SSW of Houma, Tonga

A magnitude 4.9 earthquake struck 99 km SSW of Houma, Tonga at Dec 20, 2025, 19:08 UTC, at a depth of 73 km. The epicentre was 108 km (67 mi) SSW of Nuku'alofa.

Details

Magnitude4.9 mb
TimeDec 20, 2025, 19:08 UTC
Depth73.3 km
Coordinates-22.001, -175.677
Felt reports0
Tsunami flagNone
SourceUSGS event page
Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Nearby

Nearest cities

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
MagnitudeLocationDistanceDepthTime
4.8144 km SSW of ‘Ohonua, Tonga67 km / 42 midepth 35 km
4.3148 km SW of Houma, Tonga66 km / 41 midepth 150 km
4.7123 km S of ‘Ohonua, Tonga87 km / 54 midepth 10 km
4.697 km WSW of Houma, Tonga77 km / 48 midepth 147 km
4.759 km SSW of Houma, Tonga40 km / 25 midepth 84 km
4.393 km SW of Houma, Tonga40 km / 25 midepth 133 km
4.9169 km SSW of ‘Ohonua, Tonga76 km / 47 midepth 10 km
4.3110 km WSW of Houma, Tonga72 km / 45 midepth 178 km
4.6106 km WSW of Houma, Tonga84 km / 52 midepth 175 km
4.1171 km SW of Houma, Tonga99 km / 62 midepth 206 km
4.6160 km SW of Houma, Tonga74 km / 46 midepth 116 km
5.159 km SSE of ‘Ohonua, Tonga94 km / 59 midepth 10 km
5.553 km SSW of ‘Ohonua, Tonga60 km / 37 midepth 21 km
5.459 km S of ‘Ohonua, Tonga78 km / 49 midepth 10 km

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.