M4.9 earthquake 243 km W of Hihifo, Tonga
A magnitude 4.9 earthquake struck 243 km W of Hihifo, Tonga on Wed, May 28, 1986, 5:39 PM GMT-12 (05:39 UTC), 365 km (227 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
- 1986-05-29 05:39:41 UTC
- Depth
- 364.8 km (226.7 mi), deep
- Epicenter
- 16.038° S, 176.072° 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
- FROM_LOCATION
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 usp0002uj1. Read Tue, Sep 22, 2026, 6:27 AM UTC.