Tonga earthquakes

M4.5 earthquake 138 km S of Hihifo, Tonga

A magnitude 4.5 earthquake struck 138 km S of Hihifo, Tonga on Tue, Jun 29, 2021, 12:16 PM GMT-12 (00:16 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.4 152 km NE of Neiafu, 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
4.5 (mb), light
Local time
UTC
2021-06-30 00:16:37 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
17.202° S, 173.666° 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 7.3 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.20
Depth from
Operator assigned
Station coverage gap
136°
Stations used
19

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.357 km SE of Hihifo, Tonga · 1913 days ago · 10 km deep · 94 km away
  2. 5.4152 km NE of Neiafu, Tonga · 1902 days ago · 10 km deep · 79 km away
  3. 4.843 km SSE of Hihifo, Tonga · 1895 days ago · 51 km deep · 97 km away
  4. 4.579 km SE of Hihifo, Tonga · 1893 days ago · 68 km deep · 80 km away
  5. 5.387 km SSE of Hihifo, Tonga · 1887 days ago · 10 km deep · 53 km away
  6. 4.5122 km N of Neiafu, Tonga · 1879 days ago · 104 km deep · 69 km away
  7. 5.0102 km SSE of Hihifo, Tonga · 1879 days ago · 35 km deep · 58 km away
  8. 4.666 km S of Hihifo, Tonga · 1879 days ago · 70 km deep · 73 km away
  9. 4.6Tonga · 1878 days ago · 130 km deep · 46 km away
  10. 4.9125 km N of Neiafu, Tonga · 1870 days ago · 57 km deep · 39 km away
  11. 4.3138 km SSW of Hihifo, Tonga · 1867 days ago · 110 km deep · 61 km away
  12. 4.386 km SSW of Hihifo, Tonga · 1865 days ago · 70 km deep · 88 km away

Before

  1. 5.5157 km SE of Hihifo, Tonga · 1931 days ago · 10 km deep · 97 km away
  2. 4.5Tonga · 1947 days ago · 10 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000eive. Read Wed, Sep 30, 2026, 1:45 AM UTC.