M4.3 earthquake 186 km ENE of Neiafu, Tonga
A magnitude 4.3 earthquake struck 186 km ENE of Neiafu, Tonga on Sat, Oct 7, 1978, 1:46 AM GMT-11 (12:46 UTC), 23 km (14 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1978-10-07 12:46:31 UTC
- Depth
- 23.0 km (14.3 mi), shallow
- Epicenter
- 17.886° S, 172.410° 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.
- Stations used
- 7
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000wwv. Read Thu, Oct 1, 2026, 9:14 PM UTC.