M5.5 earthquake 206 km S of ‘Ohonua, Tonga
A magnitude 5.5 earthquake struck 206 km S of ‘Ohonua, Tonga on Sun, Feb 17, 1985, 4:00 PM GMT+13 (03:00 UTC), 42 km (26 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (ms), moderate
- Local time
- UTC
- 1985-02-17 03:00:00 UTC
- Depth
- 42.0 km (26.1 mi), shallow
- Epicenter
- 23.190° S, 175.108° 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
- CONSTRAINED_BY_DEPTH_PHASES
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 3 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.9227 km S of ‘Ohonua, Tonga · 15192 days ago · 39 km deep · 22 km away
- 4.9245 km S of ‘Ohonua, Tonga · 15154 days ago · 33 km deep · 43 km away
- 4.6235 km S of ‘Ohonua, Tonga · 15150 days ago · 33 km deep · 29 km away
Before
- 5.0191 km S of ‘Ohonua, Tonga · 15193 days ago · 43 km deep · 20 km away
- 4.9248 km S of ‘Ohonua, Tonga · 15193 days ago · 33 km deep · 45 km away
- 5.4213 km S of ‘Ohonua, Tonga · 15193 days ago · 42 km deep · 12 km away
- 4.3214 km SSW of ‘Ohonua, Tonga · 15194 days ago · 256 km deep · 76 km away
- 5.4259 km S of ‘Ohonua, Tonga · 15194 days ago · 33 km deep · 54 km away
- 5.4197 km SSW of ‘Ohonua, Tonga · 15200 days ago · 33 km deep · 31 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002bz4 (also filed as iscgem532421). Read Tue, Sep 22, 2026, 8:37 AM UTC.