Tonga earthquakes

M6.0 earthquake 90 km ENE of Hihifo, Tonga

A magnitude 6.0 earthquake struck 90 km ENE of Hihifo, Tonga on Fri, May 23, 1986, 11:43 PM GMT-11 (10:43 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.1 150 km ENE of Hihifo, Tonga. This one was a foreshock.

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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
6.0 (mw), strong
Local time
UTC
1986-05-24 10:43:35 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
15.575° S, 173.051° 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 2.5 and up: 12 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 5.9103 km ESE of Hihifo, Tonga · 14729 days ago · 33 km deep · 73 km away
  2. 5.178 km E of Hihifo, Tonga · 14728 days ago · 33 km deep · 43 km away
  3. 5.452 km N of Hihifo, Tonga · 14727 days ago · 33 km deep · 88 km away
  4. 4.585 km N of Hihifo, Tonga · 14725 days ago · 33 km deep · 95 km away
  5. 4.8108 km NNE of Hihifo, Tonga · 14700 days ago · 33 km deep · 53 km away
  6. 6.1150 km ENE of Hihifo, Tonga · 14693 days ago · 33 km deep · 64 km away
  7. 4.4100 km ENE of Hihifo, Tonga · 14693 days ago · 33 km deep · 11 km away
  8. 5.7116 km E of Hihifo, Tonga · 14693 days ago · 33 km deep · 44 km away
  9. 4.3145 km ENE of Hihifo, Tonga · 14693 days ago · 33 km deep · 62 km away
  10. 5.1107 km ENE of Hihifo, Tonga · 14693 days ago · 33 km deep · 23 km away
  11. 4.8114 km E of Hihifo, Tonga · 14691 days ago · 33 km deep · 53 km away
  12. 4.9153 km ENE of Hihifo, Tonga · 14673 days ago · 33 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002uce (also filed as gcmtb052486a, gcmt19860524104335, iscgem496488). Read Tue, Sep 22, 2026, 4:13 AM UTC.