M4.9 earthquake 280 km WSW of Haveluloto, Tonga
A magnitude 4.9 earthquake struck 280 km WSW of Haveluloto, Tonga on Fri, Nov 1, 1985, 5:48 PM GMT+13 (04:48 UTC), 387 km (240 mi) below the surface.
A larger quake followed: M6.1 Fiji region. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1985-11-01 04:48:19 UTC
- Depth
- 386.5 km (240.2 mi), deep
- Epicenter
- 21.733° S, 177.845° 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.6270 km WSW of Haveluloto, Tonga · 14926 days ago · 360 km deep · 81 km away
- 4.5294 km WSW of Haveluloto, Tonga · 14894 days ago · 328 km deep · 70 km away
- 6.1Fiji region · 14880 days ago · 455 km deep · 71 km away
- 4.5Fiji region · 14879 days ago · 455 km deep · 67 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002mby. Read Tue, Sep 22, 2026, 8:53 AM UTC.