M4.5 earthquake 109 km ENE of Neiafu, Tonga
A magnitude 4.5 earthquake struck 109 km ENE of Neiafu, Tonga on Mon, Aug 14, 1978, 8:28 AM GMT+13 (19:28 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1978-08-13 19:28:13 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 18.237° S, 173.041° 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
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000w1s. Read Thu, Oct 1, 2026, 1:08 PM UTC.