Tonga earthquakes

M4.9 earthquake 33 km NE of Hihifo, Tonga

A magnitude 4.9 earthquake struck 33 km NE of Hihifo, Tonga on Mon, Feb 8, 2021, 8:56 PM GMT+14 (06:56 UTC), 37 km (23 mi) below the surface.

A larger quake followed: M5.0 122 km NE 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
4.9 (mb), light
Local time
UTC
2021-02-08 06:56:19 UTC
Depth
37.2 km (23.1 mi), shallow
Epicenter
15.717° S, 173.600° 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 5.2 km horizontally, 7.3 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
72°
Stations used
46

Nearest places

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

Nearby

Within 100 km, magnitude 1.9 and up: 6 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 5.0122 km NE of Hihifo, Tonga · 2046 days ago · 10 km deep · 89 km away · felt by 1
  2. 5.0112 km NNE of Hihifo, Tonga · 2044 days ago · 10 km deep · 79 km away · felt by 2
  3. 4.515 km SSE of Hihifo, Tonga · 2043 days ago · 110 km deep · 45 km away
  4. 4.663 km SSE of Hihifo, Tonga · 2031 days ago · 7 km deep · 85 km away
  5. 4.323 km W of Hihifo, Tonga · 2022 days ago · 110 km deep · 53 km away
  6. 4.674 km NNE of Hihifo, Tonga · 2017 days ago · 10 km deep · 41 km away

Before

  1. 4.860 km ESE of Hihifo, Tonga · 2061 days ago · 10 km deep · 60 km away
  2. 4.5117 km NE of Hihifo, Tonga · 2063 days ago · 10 km deep · 84 km away
  3. 4.696 km NE of Hihifo, Tonga · 2064 days ago · 10 km deep · 64 km away
  4. 4.572 km ENE of Hihifo, Tonga · 2067 days ago · 10 km deep · 43 km away
  5. 4.570 km W of Hihifo, Tonga · 2071 days ago · 10 km deep · 93 km away
  6. 4.663 km N of Hihifo, Tonga · 2073 days ago · 85 km deep · 38 km away
  7. 4.586 km E of Hihifo, Tonga · 2080 days ago · 10 km deep · 68 km away
  8. 4.526 km WNW of Hihifo, Tonga · 2080 days ago · 159 km deep · 45 km away
  9. 4.983 km NE of Hihifo, Tonga · 2081 days ago · 10 km deep · 52 km away
  10. 4.450 km N of Hihifo, Tonga · 2082 days ago · 62 km deep · 36 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000dfih. Read Wed, Sep 30, 2026, 11:29 AM UTC.