M4.9 earthquake 109 km WSW of Hihifo, Tonga
A magnitude 4.9 earthquake struck 109 km WSW of Hihifo, Tonga on Wed, Mar 10, 1982, 6:05 AM GMT-12 (18:05 UTC), 228 km (142 mi) below the surface.
A larger quake followed: M5.4 177 km WNW of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1982-03-10 18:05:40 UTC
- Depth
- 228.1 km (141.7 mi), intermediate-depth
- Epicenter
- 16.217° S, 174.787° 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.
Nearby
Within 100 km, magnitude 1.9 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.4177 km WNW of Hihifo, Tonga · 16249 days ago · 33 km deep · 94 km away
- 4.5104 km SW of Hihifo, Tonga · 16219 days ago · 115 km deep · 69 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001k20. Read Tue, Sep 22, 2026, 6:06 AM UTC.