M4.9 earthquake 77 km SSW of Hihifo, Tonga
A magnitude 4.9 earthquake struck 77 km SSW of Hihifo, Tonga on Thu, Jan 3, 1985, 6:00 PM GMT-11 (05:00 UTC), 143 km (89 mi) below the surface.
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
- 1985-01-04 05:00:11 UTC
- Depth
- 143.2 km (89.0 mi), intermediate-depth
- Epicenter
- 16.633° S, 173.971° 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.
- Depth from
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
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
- 4.0126 km SSE of Hihifo, Tonga · 15230 days ago · 140 km deep · 84 km away
- 4.326 km W of Hihifo, Tonga · 15190 days ago · 33 km deep · 79 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002aq9. Read Tue, Sep 22, 2026, 4:05 PM UTC.