M4.9 earthquake 145 km WNW of Hihifo, Tonga
A magnitude 4.9 earthquake struck 145 km WNW of Hihifo, Tonga on Tue, Jan 13, 1987, 9:22 AM GMT-11 (20:22 UTC), 288 km (179 mi) below the surface.
A larger quake followed: M5.0 199 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
- 1987-01-13 20:22:09 UTC
- Depth
- 287.7 km (178.8 mi), intermediate-depth
- Epicenter
- 15.359° S, 175.009° 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: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00031n5. Read Tue, Sep 22, 2026, 11:19 AM UTC.