M4.5 earthquake 39 km NW of Hihifo, Tonga
A magnitude 4.5 earthquake struck 39 km NW of Hihifo, Tonga on Sat, Apr 5, 1986, 4:07 PM GMT-11 (03:07 UTC), 140 km (87 mi) below the surface.
A larger quake followed: M5.3 85 km NE 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
- 4.5 (mb), light
- Local time
- UTC
- 1986-04-06 03:07:43 UTC
- Depth
- 140.0 km (87.0 mi), intermediate-depth
- Epicenter
- 15.685° S, 174.039° 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: 9 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.385 km NE of Hihifo, Tonga · 14773 days ago · 33 km deep · 92 km away
- 5.799 km NNE of Hihifo, Tonga · 14773 days ago · 33 km deep · 95 km away
- 5.277 km ENE of Hihifo, Tonga · 14772 days ago · 108 km deep · 94 km away
- 5.5135 km NNW of Hihifo, Tonga · 14770 days ago · 33 km deep · 98 km away
- 5.545 km NNW of Hihifo, Tonga · 14770 days ago · 89 km deep · 20 km away
- 5.296 km NNE of Hihifo, Tonga · 14764 days ago · 33 km deep · 92 km away
- 5.8109 km NW of Hihifo, Tonga · 14754 days ago · 33 km deep · 70 km away
- 5.452 km N of Hihifo, Tonga · 14727 days ago · 33 km deep · 28 km away
- 4.585 km N of Hihifo, Tonga · 14725 days ago · 33 km deep · 60 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002spz. Read Tue, Sep 22, 2026, 8:45 AM UTC.