Tonga earthquakes

M4.7 earthquake 130 km SE of Pangai, Tonga

A magnitude 4.7 earthquake struck 130 km SE of Pangai, Tonga on Thu, Mar 25, 2021, 3:05 AM GMT+13 (14:05 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.5 117 km SSE of Pangai, Tonga. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

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, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-03-24 14:05:04 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
20.731° S, 173.573° 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 10.9 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
77°
Stations used
54

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 10 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.5122 km ENE of ‘Ohonua, Tonga · 2013 days ago · 10 km deep · 36 km away
  2. 5.0103 km SSE of Pangai, Tonga · 1984 days ago · 10 km deep · 35 km away
  3. 4.669 km SSE of Pangai, Tonga · 1984 days ago · 35 km deep · 74 km away
  4. 5.5117 km SSE of Pangai, Tonga · 1979 days ago · 10 km deep · 18 km away
  5. 5.3134 km SE of Pangai, Tonga · 1979 days ago · 10 km deep · 12 km away
  6. 5.1127 km SSE of Pangai, Tonga · 1978 days ago · 10 km deep · 19 km away
  7. 4.5136 km SE of Pangai, Tonga · 1977 days ago · 10 km deep · 8 km away
  8. 4.9140 km SE of Pangai, Tonga · 1976 days ago · 10 km deep · 13 km away
  9. 5.0111 km ENE of ‘Ohonua, Tonga · 1963 days ago · 10 km deep · 50 km away
  10. 5.068 km SE of Pangai, Tonga · 1961 days ago · 10 km deep · 66 km away

Before

  1. 4.884 km ENE of ‘Ohonua, Tonga · 2047 days ago · 10 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000dw19. Read Sun, Oct 4, 2026, 3:53 PM UTC.