Tonga earthquakes

M4.9 earthquake 148 km SSW of Hihifo, Tonga

A magnitude 4.9 earthquake struck 148 km SSW of Hihifo, Tonga on Sat, Feb 6, 2021, 2:25 PM GMT-12 (02:25 UTC), 157 km (98 mi) below the surface.

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The earthquake

Magnitude
4.9 (mb), light
Local time
UTC
2021-02-07 02:25:06 UTC
Depth
157.1 km (97.6 mi), intermediate-depth
Epicenter
17.182° S, 174.357° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 9.4 km horizontally, 5.5 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
52°
Stations used
70

Nearby

Within 100 km, magnitude 1.9 and up: 5 in the 60 days after this one and 3 in the 30 days before it.

After

Before

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000df96 (also filed as iscgem619810838). Read Wed, Sep 30, 2026, 5:30 AM UTC.