M4.9 earthquake 168 km WSW of Hihifo, Tonga
A magnitude 4.9 earthquake struck 168 km WSW of Hihifo, Tonga on Sat, Jul 27, 1974, 1:25 AM GMT-12 (13:25 UTC), 334 km (208 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
- 1974-07-27 13:25:44 UTC
- Depth
- 334.0 km (207.5 mi), deep
- Epicenter
- 16.361° S, 175.319° 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
- CONSTRAINED_BY_DEPTH_PHASES
- Stations used
- 32
Nearby
Within 100 km, magnitude 1.9 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007b7. Read Tue, Sep 29, 2026, 2:18 PM UTC.