Tonga earthquakes

M5.0 earthquake 154 km WNW of Hihifo, Tonga

A magnitude 5.0 earthquake struck 154 km WNW of Hihifo, Tonga on Sun, Jul 1, 1984, 10:00 AM GMT-11 (21:00 UTC), 244 km (151 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
5.0 (mb), moderate
Local time
UTC
1984-07-01 21:00:40 UTC
Depth
243.6 km (151.4 mi), intermediate-depth
Epicenter
15.298° S, 175.065° 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 2.0 and up: 1 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.8101 km WNW of Hihifo, Tonga · 15399 days ago · 33 km deep · 52 km away

Before

  1. 6.6111 km W of Hihifo, Tonga · 15439 days ago · 247 km deep · 63 km away
  2. 5.3129 km W of Hihifo, Tonga · 15445 days ago · 282 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00025es. Read Tue, Sep 22, 2026, 8:51 PM UTC.