Tonga earthquakes

M4.5 earthquake 284 km SSW of ‘Ohonua, Tonga

A magnitude 4.5 earthquake struck 284 km SSW of ‘Ohonua, Tonga on Mon, Mar 21, 2022, 1:29 PM GMT+13 (00:29 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.4 240 km S of ‘Ohonua, 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
4.5 (mb), light
Local time
UTC
2022-03-21 00:29:54 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
23.723° S, 175.957° 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 6.9 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.16
Depth from
Operator assigned
Station coverage gap
157°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.6235 km S of ‘Ohonua, Tonga · 1653 days ago · 10 km deep · 97 km away
  2. 4.8276 km S of ‘Ohonua, Tonga · 1652 days ago · 10 km deep · 77 km away
  3. 5.4240 km S of ‘Ohonua, Tonga · 1652 days ago · 10 km deep · 70 km away
  4. 5.0260 km S of ‘Ohonua, Tonga · 1651 days ago · 10 km deep · 64 km away
  5. 5.0234 km S of ‘Ohonua, Tonga · 1645 days ago · 10 km deep · 89 km away
  6. 4.7south of the Fiji Islands · 1632 days ago · 136 km deep · 86 km away

Before

  1. 5.0234 km S of ‘Ohonua, Tonga · 1654 days ago · 10 km deep · 88 km away
  2. 4.3Tonga region · 1655 days ago · 10 km deep · 93 km away
  3. 4.4296 km SSW of ‘Ohonua, Tonga · 1665 days ago · 35 km deep · 14 km away
  4. 4.6299 km SW of ‘Ohonua, Tonga · 1667 days ago · 59 km deep · 76 km away
  5. 5.2261 km SSW of ‘Ohonua, Tonga · 1684 days ago · 10 km deep · 24 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000gxae. Read Wed, Sep 30, 2026, 9:50 AM UTC.