M5.0 earthquake 299 km SSW of ‘Ohonua, Tonga
A magnitude 5.0 earthquake struck 299 km SSW of ‘Ohonua, Tonga on Tue, Apr 2, 1985, 2:32 PM GMT+13 (01:32 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.1 south of Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (ms), moderate
- Local time
- UTC
- 1985-04-02 01:32:05 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 23.968° S, 175.629° 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
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.0 and up: 1 in the 60 days after this one and 2 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 usp0002dcq. Read Tue, Sep 22, 2026, 8:07 PM UTC.