M4.6 earthquake 136 km W of Hihifo, Tonga
A magnitude 4.6 earthquake struck 136 km W of Hihifo, Tonga on Wed, Aug 14, 1985, 6:58 AM GMT-12 (18:58 UTC), 305 km (190 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1985-08-14 18:58:43 UTC
- Depth
- 305.4 km (189.8 mi), deep
- Epicenter
- 16.029° S, 175.070° 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
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.5104 km WNW of Hihifo, Tonga · 14977 days ago · 300 km deep · 62 km away
- 4.3120 km W of Hihifo, Tonga · 14972 days ago · 329 km deep · 18 km away
- 4.695 km WNW of Hihifo, Tonga · 14968 days ago · 33 km deep · 61 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002hr1. Read Tue, Sep 22, 2026, 8:41 AM UTC.