Tonga earthquakes

M5.0 earthquake 103 km SSE of Pangai, Tonga

A magnitude 5.0 earthquake struck 103 km SSE of Pangai, Tonga on Thu, Apr 29, 2021, 11:01 PM GMT+13 (10:01 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.

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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
5.0 (mb, body-wave), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-04-29 10:01:11 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
20.645° S, 173.898° 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 10.1 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
121°
Stations used
93

Nearest places

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

Nearby

Within 100 km, magnitude 2.0 and up: 11 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.669 km SSE of Pangai, Tonga · 1982 days ago · 35 km deep · 40 km away
  2. 5.5117 km SSE of Pangai, Tonga · 1977 days ago · 10 km deep · 18 km away
  3. 5.3134 km SE of Pangai, Tonga · 1977 days ago · 10 km deep · 46 km away
  4. 5.1127 km SSE of Pangai, Tonga · 1977 days ago · 10 km deep · 25 km away
  5. 4.5136 km SE of Pangai, Tonga · 1976 days ago · 10 km deep · 38 km away
  6. 4.9140 km SE of Pangai, Tonga · 1975 days ago · 10 km deep · 40 km away
  7. 5.0111 km ENE of ‘Ohonua, Tonga · 1962 days ago · 10 km deep · 43 km away
  8. 4.878 km ESE of ‘Ohonua, Tonga · 1961 days ago · 10 km deep · 99 km away
  9. 5.068 km SE of Pangai, Tonga · 1959 days ago · 10 km deep · 51 km away
  10. 4.4Tonga · 1958 days ago · 10 km deep · 44 km away
  11. 4.9131 km ENE of ‘Ohonua, Tonga · 1947 days ago · 10 km deep · 50 km away

Before

  1. 4.5122 km ENE of ‘Ohonua, Tonga · 2011 days ago · 10 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000dyi3. Read Fri, Oct 2, 2026, 7:13 PM UTC.