M5.0 earthquake 191 km S of ‘Ohonua, Tonga
A magnitude 5.0 earthquake struck 191 km S of ‘Ohonua, Tonga on Sun, Feb 17, 1985, 8:16 AM GMT+13 (19:16 UTC), 43 km (27 mi) below the surface.
A larger quake followed: M5.5 206 km S of ‘Ohonua, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (ms), moderate
- Local time
- UTC
- 1985-02-16 19:16:42 UTC
- Depth
- 42.8 km (26.6 mi), shallow
- Epicenter
- 23.041° S, 175.211° 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 2.0 and up: 5 in the 60 days after this one and 5 in the 30 days before it.
After
- 5.5206 km S of ‘Ohonua, Tonga · 15193 days ago · 42 km deep · 20 km away
- 4.9227 km S of ‘Ohonua, Tonga · 15192 days ago · 39 km deep · 38 km away
- 4.5150 km SW of ‘Ohonua, Tonga · 15182 days ago · 33 km deep · 91 km away
- 4.9245 km S of ‘Ohonua, Tonga · 15154 days ago · 33 km deep · 55 km away
- 4.6235 km S of ‘Ohonua, Tonga · 15150 days ago · 33 km deep · 45 km away
Before
- 4.9248 km S of ‘Ohonua, Tonga · 15193 days ago · 33 km deep · 58 km away
- 5.4213 km S of ‘Ohonua, Tonga · 15193 days ago · 42 km deep · 32 km away
- 4.3214 km SSW of ‘Ohonua, Tonga · 15194 days ago · 256 km deep · 65 km away
- 5.4259 km S of ‘Ohonua, Tonga · 15194 days ago · 33 km deep · 69 km away
- 5.4197 km SSW of ‘Ohonua, Tonga · 15200 days ago · 33 km deep · 18 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002byu. Read Tue, Sep 22, 2026, 5:21 PM UTC.