M5.1 earthquake 114 km SE of Pangai, Tonga
A magnitude 5.1 earthquake struck 114 km SE of Pangai, Tonga on Fri, May 28, 1976, 8:44 PM GMT+13 (07:44 UTC), 33 km (21 mi) below the surface.
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
- 1976-05-28 07:44:13 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 20.609° S, 173.650° W
- Region
- Tonga
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 5.1 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed |
| 5.25 | Mw, moment | ISC-GEM global catalog | Final · ±0.2 |
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
- 16
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 1 in the 30 days before it.
After
- 5.046 km SE of Pangai, Tonga · 18374 days ago · 34 km deep · 71 km away
- 4.8Tonga · 18370 days ago · 33 km deep · 82 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000gk6 (also filed as iscgem714732). Read Fri, Oct 2, 2026, 12:08 AM UTC.