Tonga earthquakes

M5.8 earthquake 109 km NW of Hihifo, Tonga

A magnitude 5.8 earthquake struck 109 km NW of Hihifo, Tonga on Thu, May 1, 1986, 6:21 AM GMT-11 (17:21 UTC), 33 km (21 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
5.8 (mw), moderate
Local time
UTC
1986-05-01 17:21:24 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
15.140° S, 174.370° 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
OPERATOR_ASSIGNED

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.8 and up: 2 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 5.452 km N of Hihifo, Tonga · 14736 days ago · 33 km deep · 66 km away
  2. 4.585 km N of Hihifo, Tonga · 14733 days ago · 33 km deep · 57 km away

Before

  1. 5.545 km NNW of Hihifo, Tonga · 14778 days ago · 89 km deep · 68 km away
  2. 5.5135 km NNW of Hihifo, Tonga · 14779 days ago · 33 km deep · 32 km away
  3. 4.539 km NW of Hihifo, Tonga · 14788 days ago · 140 km deep · 70 km away
  4. 4.892 km NNW of Hihifo, Tonga · 14790 days ago · 95 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002tdk (also filed as gcmtb050186a, gcmt19860501172123, iscgem494412). Read Wed, Sep 30, 2026, 8:00 PM UTC.