Tonga earthquakes

M4.0 earthquake 150 km WSW of Hihifo, Tonga

A magnitude 4.0 earthquake struck 150 km WSW of Hihifo, Tonga on Sun, Apr 24, 2016, 11:27 PM GMT-12 (11:27 UTC), 297 km (185 mi) below the surface.

A larger quake followed: M4.9 226 km W 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
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-04-25 11:27:54 UTC
Depth
297.1 km (184.6 mi), intermediate-depth
Epicenter
16.417° S, 175.118° 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.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 21.4 km horizontally, 38.0 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
278°, poorly surrounded by stations
Stations used
15

Nearby

Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.9226 km W of Hihifo, Tonga · 3775 days ago · 328 km deep · 85 km away

Before

  1. 4.2209 km W of Hihifo, Tonga · 3837 days ago · 350 km deep · 77 km away
  2. 4.1120 km W of Hihifo, Tonga · 3840 days ago · 321 km deep · 65 km away
  3. 4.2186 km NNW of Neiafu, Tonga · 3841 days ago · 158 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10005dw3. Read Sun, Oct 4, 2026, 6:53 PM UTC.