M4.5 earthquake 88 km NNE of Hihifo, Tonga
A magnitude 4.5 earthquake struck 88 km NNE of Hihifo, Tonga on Thu, Sep 26, 1985, 3:47 AM GMT-11 (14:47 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 67 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
- 4.5 (mb), light
- Local time
- UTC
- 1985-09-26 14:47:45 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.199° S, 173.528° 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: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.767 km ENE of Hihifo, Tonga · 14968 days ago · 33 km deep · 62 km away
- 4.894 km N of Hihifo, Tonga · 14962 days ago · 33 km deep · 17 km away
- 4.444 km NE of Hihifo, Tonga · 14953 days ago · 53 km deep · 57 km away
- 5.294 km NNE of Hihifo, Tonga · 14944 days ago · 33 km deep · 20 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002k5b. Read Tue, Sep 22, 2026, 8:40 AM UTC.