M4.7 earthquake 226 km NW of Neiafu, Tonga
A magnitude 4.7 earthquake struck 226 km NW of Neiafu, Tonga on Wed, Jul 10, 1985, 9:57 AM GMT-12 (21:57 UTC), 231 km (144 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1985-07-10 21:57:09 UTC
- Depth
- 231.3 km (143.7 mi), intermediate-depth
- Epicenter
- 17.425° S, 175.693° 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 1.7 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 usp0002gnz. Read Tue, Sep 22, 2026, 5:20 PM UTC.