Tonga earthquakes

M4.6 earthquake 142 km SW of Vaini, Tonga

A magnitude 4.6 earthquake struck 142 km SW of Vaini, Tonga on Wed, Apr 22, 2020, 8:47 PM GMT+13 (07:47 UTC), 60 km (37 mi) below the surface.

A larger quake followed: M5.5 100 km SW 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
4.6 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-04-22 07:47:56 UTC
Depth
59.6 km (37.0 mi), shallow
Epicenter
22.201° S, 176.032° 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 13.4 km horizontally, 8.6 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
117°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 9 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 5.5100 km SW of ‘Ohonua, Tonga · 2354 days ago · 40 km deep · 57 km away · felt by 5
  2. 4.5106 km WSW of Haveluloto, Tonga · 2352 days ago · 104 km deep · 74 km away
  3. 4.6172 km SSW of Vaini, Tonga · 2342 days ago · 67 km deep · 40 km away
  4. 4.478 km SW of ‘Ohonua, Tonga · 2339 days ago · 44 km deep · 70 km away
  5. 4.4201 km SSW of ‘Ohonua, Tonga · 2334 days ago · 38 km deep · 81 km away
  6. 4.695 km WSW of Haveluloto, Tonga · 2334 days ago · 112 km deep · 89 km away
  7. 4.3178 km SW of Vaini, Tonga · 2325 days ago · 353 km deep · 36 km away
  8. 4.8208 km SW of ‘Ohonua, Tonga · 2322 days ago · 70 km deep · 75 km away
  9. 5.3120 km SSW of ‘Ohonua, Tonga · 2311 days ago · 22 km deep · 49 km away · felt by 1

Before

  1. 5.055 km SW of Vaini, Tonga · 2370 days ago · 42 km deep · 88 km away · felt by 1
  2. 4.7225 km SSW of Vaini, Tonga · 2373 days ago · 10 km deep · 87 km away
  3. 4.4154 km SW of Haveluloto, Tonga · 2376 days ago · 104 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us60009dz0. Read Sat, Oct 3, 2026, 1:31 AM UTC.