Tonga earthquakes

M5.2 earthquake 81 km ENE of ‘Ohonua, Tonga

A magnitude 5.2 earthquake struck 81 km ENE of ‘Ohonua, Tonga on Thu, Oct 10, 1985, 6:23 AM GMT+13 (17:23 UTC), 66 km (41 mi) below the surface.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
5.2 (mw), moderate
Local time
UTC
1985-10-09 17:23:38 UTC
Depth
65.5 km (40.7 mi), shallow
Epicenter
21.110° S, 174.198° 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 2.2 and up: 2 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.621 km SSW of ‘Ohonua, Tonga · 14940 days ago · 33 km deep · 95 km away
  2. 4.735 km NE of ‘Ohonua, Tonga · 14906 days ago · 33 km deep · 52 km away

Before

  1. 5.179 km ENE of ‘Ohonua, Tonga · 14958 days ago · 66 km deep · 5 km away
  2. 5.4102 km ENE of ‘Ohonua, Tonga · 14969 days ago · 33 km deep · 27 km away
  3. 5.1141 km SE of Pangai, Tonga · 14981 days ago · 33 km deep · 81 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002kn1 (also filed as gcmtb100985c, gcmt19851009172339, iscgem512962). Read Tue, Sep 22, 2026, 6:57 AM UTC.