Tonga earthquakes

M4.4 earthquake 36 km S of Hihifo, Tonga

A magnitude 4.4 earthquake struck 36 km S of Hihifo, Tonga on Tue, Jun 1, 2021, 3:25 AM GMT+13 (14:25 UTC), 80 km (50 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
2021-05-31 14:25:09 UTC
Depth
80.0 km (49.7 mi), intermediate-depth
Epicenter
16.281° S, 173.763° 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 15.7 km horizontally, 8.4 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
138°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.5Tonga · 1948 days ago · 10 km deep · 66 km away
  2. 4.422 km NW of Hihifo, Tonga · 1943 days ago · 106 km deep · 54 km away
  3. 4.436 km SE of Hihifo, Tonga · 1942 days ago · 102 km deep · 21 km away
  4. 4.667 km ESE of Hihifo, Tonga · 1938 days ago · 7 km deep · 59 km away
  5. 4.580 km ESE of Hihifo, Tonga · 1936 days ago · 35 km deep · 67 km away
  6. 4.417 km NNW of Hihifo, Tonga · 1918 days ago · 35 km deep · 53 km away
  7. 4.357 km SE of Hihifo, Tonga · 1913 days ago · 10 km deep · 32 km away
  8. 5.075 km E of Hihifo, Tonga · 1909 days ago · 10 km deep · 79 km away
  9. 4.753 km ENE of Hihifo, Tonga · 1907 days ago · 35 km deep · 74 km away
  10. 4.843 km SSE of Hihifo, Tonga · 1895 days ago · 51 km deep · 10 km away
  11. 4.620 km WSW of Hihifo, Tonga · 1893 days ago · 113 km deep · 39 km away
  12. 4.579 km SE of Hihifo, Tonga · 1893 days ago · 68 km deep · 51 km away

Before

  1. 4.679 km ENE of Hihifo, Tonga · 1969 days ago · 10 km deep · 99 km away
  2. 4.650 km NNE of Hihifo, Tonga · 1974 days ago · 69 km deep · 85 km away
  3. 4.3111 km SSW of Hihifo, Tonga · 1975 days ago · 167 km deep · 80 km away
  4. 4.588 km SW of Hihifo, Tonga · 1976 days ago · 170 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e9h6. Read Wed, Sep 30, 2026, 8:12 AM UTC.