Tonga earthquakes

M4.4 earthquake 17 km NNW of Hihifo, Tonga

A magnitude 4.4 earthquake struck 17 km NNW of Hihifo, Tonga on Thu, Jul 1, 2021, 3:01 AM GMT+13 (14:01 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.0 75 km E 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
4.4 (mb), light
Local time
UTC
2021-06-30 14:01:50 UTC
Depth
35.4 km (22.0 mi), shallow
Epicenter
15.810° S, 173.859° 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 12.6 km horizontally, 10.6 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
133°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 4.7106 km N of Hihifo, Tonga · 1916 days ago · 10 km deep · 92 km away
  2. 4.357 km SE of Hihifo, Tonga · 1913 days ago · 10 km deep · 75 km away
  3. 4.690 km NNE of Hihifo, Tonga · 1912 days ago · 10 km deep · 79 km away
  4. 5.075 km E of Hihifo, Tonga · 1909 days ago · 10 km deep · 84 km away
  5. 4.753 km ENE of Hihifo, Tonga · 1907 days ago · 35 km deep · 56 km away
  6. 4.843 km SSE of Hihifo, Tonga · 1895 days ago · 51 km deep · 61 km away
  7. 4.570 km N of Hihifo, Tonga · 1894 days ago · 74 km deep · 54 km away
  8. 4.620 km WSW of Hihifo, Tonga · 1893 days ago · 113 km deep · 25 km away
  9. 5.085 km N of Hihifo, Tonga · 1893 days ago · 10 km deep · 70 km away
  10. 4.579 km SE of Hihifo, Tonga · 1893 days ago · 68 km deep · 96 km away
  11. 4.896 km N of Hihifo, Tonga · 1893 days ago · 93 km deep · 80 km away
  12. 4.875 km NW of Hihifo, Tonga · 1892 days ago · 175 km deep · 62 km away
  13. 4.881 km NE of Hihifo, Tonga · 1891 days ago · 32 km deep · 77 km away · felt by 7
  14. 4.6105 km NNE of Hihifo, Tonga · 1886 days ago · 10 km deep · 94 km away
  15. 4.898 km NE of Hihifo, Tonga · 1881 days ago · 10 km deep · 92 km away
  16. 4.666 km S of Hihifo, Tonga · 1879 days ago · 70 km deep · 84 km away
  17. 4.953 km NE of Hihifo, Tonga · 1878 days ago · 78 km deep · 49 km away
  18. 4.551 km SE of Hihifo, Tonga · 1878 days ago · 65 km deep · 68 km away
  19. 4.545 km N of Hihifo, Tonga · 1867 days ago · 67 km deep · 31 km away
  20. 4.568 km N of Hihifo, Tonga · 1866 days ago · 133 km deep · 55 km away
  21. 4.386 km SSW of Hihifo, Tonga · 1865 days ago · 70 km deep · 98 km away
  22. 4.6Tonga · 1863 days ago · 69 km deep · 39 km away

Before

  1. 4.580 km ESE of Hihifo, Tonga · 1936 days ago · 35 km deep · 94 km away
  2. 4.667 km ESE of Hihifo, Tonga · 1938 days ago · 7 km deep · 82 km away
  3. 4.4101 km WNW of Hihifo, Tonga · 1938 days ago · 255 km deep · 88 km away
  4. 4.436 km SE of Hihifo, Tonga · 1942 days ago · 102 km deep · 54 km away
  5. 4.422 km NW of Hihifo, Tonga · 1944 days ago · 106 km deep · 11 km away
  6. 4.5Tonga · 1948 days ago · 10 km deep · 96 km away
  7. 4.436 km S of Hihifo, Tonga · 1948 days ago · 80 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000eivp. Read Wed, Sep 30, 2026, 10:32 AM UTC.