M4.4 earthquake 70 km SSW of Hihifo, Tonga
A magnitude 4.4 earthquake struck 70 km SSW of Hihifo, Tonga on Tue, Apr 19, 1983, 9:33 PM GMT-11 (08:33 UTC), 46 km (29 mi) below the surface.
A larger quake followed: M6.6 147 km SW 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
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1983-04-20 08:33:48 UTC
- Depth
- 46.2 km (28.7 mi), shallow
- Epicenter
- 16.552° S, 174.015° 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 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.552 km W of Hihifo, Tonga · 15866 days ago · 33 km deep · 68 km away
- 6.6147 km SW of Hihifo, Tonga · 15829 days ago · 180 km deep · 83 km away
- 4.9138 km SW of Hihifo, Tonga · 15828 days ago · 153 km deep · 74 km away
- 4.6101 km S of Hihifo, Tonga · 15825 days ago · 35 km deep · 50 km away
- 4.8137 km SW of Hihifo, Tonga · 15811 days ago · 286 km deep · 86 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ukk. Read Thu, Oct 1, 2026, 6:32 PM UTC.