Tonga earthquakes

M4.9 earthquake 286 km WNW of Haveluloto, Tonga

A magnitude 4.9 earthquake struck 286 km WNW of Haveluloto, Tonga on Sat, Jun 19, 1982, 4:37 AM GMT+13 (15:37 UTC), 518 km (322 mi) below the surface.

A larger quake followed: M5.5 Fiji region. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

Map

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

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The earthquake

Magnitude
4.9 (mb), light
Local time
UTC
1982-06-18 15:37:13 UTC
Depth
517.7 km (321.7 mi), deep
Epicenter
20.571° S, 177.899° 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.

Nearest places

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

Nearby

Within 100 km, magnitude 1.9 and up: 6 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.8205 km WNW of Haveluloto, Tonga · 16151 days ago · 313 km deep · 84 km away
  2. 5.5Fiji region · 16149 days ago · 615 km deep · 98 km away
  3. 4.5Fiji region · 16142 days ago · 553 km deep · 78 km away
  4. 5.2273 km WNW of Haveluloto, Tonga · 16140 days ago · 532 km deep · 36 km away
  5. 4.6Fiji region · 16135 days ago · 392 km deep · 54 km away
  6. 5.1Fiji region · 16108 days ago · 596 km deep · 99 km away

Before

  1. 5.3Fiji region · 16188 days ago · 617 km deep · 95 km away
  2. 5.2Fiji region · 16188 days ago · 604 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001n05. Read Tue, Sep 22, 2026, 8:25 AM UTC.