M4.7 earthquake 166 km NNW of Neiafu, Tonga
A magnitude 4.7 earthquake struck 166 km NNW of Neiafu, Tonga on Tue, Jan 28, 1986, 10:57 PM GMT-12 (10:57 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.8 156 km NNW of Neiafu, Tonga. This one was a foreshock.
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
- 1986-01-29 10:57:19 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 17.266° S, 174.588° 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
Nearby
Within 100 km, magnitude 1.7 and up: 3 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.8156 km NNW of Neiafu, Tonga · 14827 days ago · 125 km deep · 25 km away
- 4.2137 km SW of Hihifo, Tonga · 14807 days ago · 110 km deep · 34 km away
- 5.8Tonga · 14787 days ago · 33 km deep · 49 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002qj1. Read Tue, Sep 22, 2026, 9:18 AM UTC.