Tonga earthquakes

M4.4 earthquake 163 km WSW of Hihifo, Tonga

A magnitude 4.4 earthquake struck 163 km WSW of Hihifo, Tonga on Mon, Jul 12, 2021, 3:59 PM GMT-12 (03:59 UTC), 10 km (6 mi) below the surface.

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The earthquake

Magnitude
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-07-13 03:59:26 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
16.340° S, 175.271° 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.

Location uncertainty
About 13.8 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.18
Depth from
Operator assigned
Station coverage gap
123°
Stations used
20

Nearby

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

After

  1. 4.3150 km W of Hihifo, Tonga · 1907 days ago · 128 km deep · 34 km away
  2. 4.4121 km WSW of Hihifo, Tonga · 1887 days ago · 273 km deep · 44 km away
  3. 4.2230 km WSW of Hihifo, Tonga · 1868 days ago · 346 km deep · 67 km away

Before

  1. 4.1177 km WSW of Hihifo, Tonga · 1912 days ago · 271 km deep · 28 km away
  2. 4.1226 km W of Hihifo, Tonga · 1915 days ago · 387 km deep · 73 km away
  3. 4.4114 km W of Hihifo, Tonga · 1932 days ago · 323 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000emkg. Read Fri, Oct 2, 2026, 8:22 AM UTC.