M5.1 earthquake 129 km SE of Pangai, Tonga
A magnitude 5.1 earthquake struck 129 km SE of Pangai, Tonga on Tue, Apr 22, 1980, 9:10 PM GMT+13 (08:10 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.5 50 km SE of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1980-04-22 08:10:26 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 20.573° S, 173.407° 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
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 2 in the 60 days after this one and 6 in the 30 days before it.
After
- 5.550 km SE of Pangai, Tonga · 16960 days ago · 33 km deep · 80 km away
- 5.292 km ESE of Pangai, Tonga · 16929 days ago · 36 km deep · 65 km away
Before
- 5.070 km ESE of Pangai, Tonga · 16982 days ago · 33 km deep · 62 km away
- 5.087 km SE of Pangai, Tonga · 16987 days ago · 33 km deep · 51 km away
- 6.1125 km SE of Pangai, Tonga · 16987 days ago · 37 km deep · 23 km away
- 5.7119 km SSE of Pangai, Tonga · 16988 days ago · 34 km deep · 39 km away
- 5.2100 km SE of Pangai, Tonga · 16988 days ago · 33 km deep · 40 km away
- 6.2100 km SE of Pangai, Tonga · 16988 days ago · 33 km deep · 41 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00016td. Read Sun, Oct 4, 2026, 9:25 AM UTC.