M4.3 earthquake 145 km ENE of Hihifo, Tonga
A magnitude 4.3 earthquake struck 145 km ENE of Hihifo, Tonga on Mon, Jun 30, 1986, 3:17 PM GMT-11 (02:17 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.1 107 km ENE of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1986-07-01 02:17:01 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.635° S, 172.477° 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.1107 km ENE of Hihifo, Tonga · 14693 days ago · 33 km deep · 40 km away
- 4.8114 km E of Hihifo, Tonga · 14691 days ago · 33 km deep · 43 km away
- 4.9153 km ENE of Hihifo, Tonga · 14674 days ago · 33 km deep · 8 km away
- 5.489 km NE of Hihifo, Tonga · 14662 days ago · 33 km deep · 91 km away
- 5.589 km ESE of Hihifo, Tonga · 14638 days ago · 33 km deep · 97 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002vm8. Read Tue, Sep 22, 2026, 2:50 PM UTC.