Tonga earthquakes

M6.3 earthquake 115 km W of Hihifo, Tonga

A magnitude 6.3 earthquake struck 115 km W of Hihifo, Tonga on Mon, Dec 21, 1942, 4:14 PM GMT-12 (04:14 UTC), 15 km (9 mi) below the surface.

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The earthquake

Magnitude
6.3 (mw), strong
Local time
UTC
1942-12-22 04:14:43 UTC
Depth
15.0 km (9.3 mi), shallow
Epicenter
15.854° S, 174.874° 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.

Magnitude uncertainty
±0.43
Depth from
From location

Nearby

Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.

None recorded.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem900594. Read Tue, Sep 22, 2026, 9:40 AM UTC.