M4.9 earthquake 5 km WSW of Hihifo, Tonga
A magnitude 4.9 earthquake struck 5 km WSW of Hihifo, Tonga on Mon, Aug 2, 1982, 12:31 PM GMT-11 (23:31 UTC), 181 km (112 mi) below the surface.
A larger quake followed: M5.2 85 km NNE 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
- 1982-08-02 23:31:02 UTC
- Depth
- 180.5 km (112.2 mi), intermediate-depth
- Epicenter
- 15.982° S, 173.841° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.695 km N of Hihifo, Tonga · 16113 days ago · 33 km deep · 99 km away
- 4.956 km S of Hihifo, Tonga · 16087 days ago · 213 km deep · 53 km away
- 5.285 km NNE of Hihifo, Tonga · 16085 days ago · 33 km deep · 91 km away
- 4.694 km W of Hihifo, Tonga · 16082 days ago · 54 km deep · 90 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ntk. Read Tue, Sep 22, 2026, 7:23 AM UTC.