Tonga earthquakes

M4.7 earthquake 106 km N of Hihifo, Tonga

A magnitude 4.7 earthquake struck 106 km N of Hihifo, Tonga on Fri, Jul 2, 2021, 10:04 PM GMT+13 (09:04 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.0 85 km N of Hihifo, Tonga. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.7 (mb), light
Local time
UTC
2021-07-02 09:04:56 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
15.002° S, 173.677° 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 11.4 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.22
Depth from
Operator assigned
Station coverage gap
120°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 16 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.6123 km NW of Hihifo, Tonga · 1913 days ago · 10 km deep · 82 km away
  2. 4.690 km NNE of Hihifo, Tonga · 1912 days ago · 10 km deep · 29 km away
  3. 4.753 km ENE of Hihifo, Tonga · 1907 days ago · 35 km deep · 91 km away
  4. 4.5108 km NE of Hihifo, Tonga · 1901 days ago · 10 km deep · 60 km away
  5. 4.570 km N of Hihifo, Tonga · 1894 days ago · 74 km deep · 45 km away
  6. 5.085 km N of Hihifo, Tonga · 1893 days ago · 10 km deep · 26 km away
  7. 4.896 km N of Hihifo, Tonga · 1893 days ago · 93 km deep · 24 km away
  8. 4.875 km NW of Hihifo, Tonga · 1892 days ago · 175 km deep · 97 km away
  9. 4.881 km NE of Hihifo, Tonga · 1891 days ago · 32 km deep · 70 km away · felt by 7
  10. 4.6105 km NNE of Hihifo, Tonga · 1886 days ago · 10 km deep · 27 km away
  11. 4.898 km NE of Hihifo, Tonga · 1881 days ago · 10 km deep · 54 km away
  12. 4.953 km NE of Hihifo, Tonga · 1879 days ago · 78 km deep · 68 km away
  13. 4.545 km N of Hihifo, Tonga · 1867 days ago · 67 km deep · 61 km away
  14. 4.568 km N of Hihifo, Tonga · 1866 days ago · 133 km deep · 39 km away
  15. 4.9108 km NE of Hihifo, Tonga · 1859 days ago · 10 km deep · 74 km away
  16. 4.535 km N of Hihifo, Tonga · 1857 days ago · 83 km deep · 72 km away

Before

  1. 4.417 km NNW of Hihifo, Tonga · 1918 days ago · 35 km deep · 92 km away
  2. 4.422 km NW of Hihifo, Tonga · 1944 days ago · 106 km deep · 97 km away
  3. 4.5111 km ENE of Hihifo, Tonga · 1944 days ago · 10 km deep · 95 km away
  4. 4.5136 km NNE of Hihifo, Tonga · 1945 days ago · 10 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000ejce. Read Wed, Sep 30, 2026, 12:21 PM UTC.