M4.9 earthquake 202 km NW of Neiafu, Tonga
A magnitude 4.9 earthquake struck 202 km NW of Neiafu, Tonga on Fri, Aug 2, 1974, 5:59 AM GMT-12 (17:59 UTC), 281 km (175 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1974-08-02 17:59:00 UTC
- Depth
- 281.0 km (174.6 mi), intermediate-depth
- Epicenter
- 17.303° S, 175.280° 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
- 18
Nearby
Within 100 km, magnitude 1.9 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007fa. Read Sun, Sep 27, 2026, 6:09 PM UTC.