M5.0 earthquake 164 km ENE of Neiafu, Tonga
A magnitude 5.0 earthquake struck 164 km ENE of Neiafu, Tonga on Sat, May 7, 1977, 7:35 AM GMT-12 (19:35 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
- 5.0 (mb), moderate
- Local time
- UTC
- 1977-05-07 19:35:32 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 17.986° S, 172.592° 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
- 55
Nearby
Within 100 km, magnitude 2.0 and up: 0 in the 60 days after this one and 5 in the 30 days before it.
Before
- 5.0171 km ENE of Neiafu, Tonga · 18035 days ago · 33 km deep · 29 km away
- 5.3175 km SSE of Hihifo, Tonga · 18042 days ago · 33 km deep · 84 km away
- 5.1194 km SE of Hihifo, Tonga · 18056 days ago · 33 km deep · 72 km away
- 4.9176 km NE of Neiafu, Tonga · 18059 days ago · 33 km deep · 30 km away
- 4.9209 km NE of Neiafu, Tonga · 18063 days ago · 35 km deep · 63 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000nst (also filed as iscgem698234). Read Tue, Sep 22, 2026, 8:24 AM UTC.