Tonga earthquakes

M4.2 earthquake 186 km NNW of Neiafu, Tonga

A magnitude 4.2 earthquake struck 186 km NNW of Neiafu, Tonga on Tue, Mar 29, 2016, 6:48 AM GMT-12 (18:48 UTC), 158 km (98 mi) below the surface.

A larger quake followed: M4.8 144 km WNW of Neiafu, Tonga. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-03-29 18:48:38 UTC
Depth
158.0 km (98.2 mi), intermediate-depth
Epicenter
17.250° S, 174.958° 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, 12.3 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
97°
Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 4.3191 km NW of Neiafu, Tonga · 3833 days ago · 241 km deep · 24 km away
  2. 4.8144 km WNW of Neiafu, Tonga · 3833 days ago · 214 km deep · 88 km away
  3. 4.3127 km SSW of Hihifo, Tonga · 3832 days ago · 133 km deep · 86 km away
  4. 4.5149 km NNW of Neiafu, Tonga · 3831 days ago · 132 km deep · 56 km away
  5. 4.5149 km SSW of Hihifo, Tonga · 3821 days ago · 61 km deep · 64 km away
  6. 4.6135 km SSW of Hihifo, Tonga · 3821 days ago · 69 km deep · 79 km away
  7. 4.0150 km WSW of Hihifo, Tonga · 3814 days ago · 297 km deep · 94 km away
  8. 4.6143 km NNW of Neiafu, Tonga · 3813 days ago · 103 km deep · 75 km away
  9. 4.4137 km SSW of Hihifo, Tonga · 3808 days ago · 92 km deep · 83 km away · felt by 1
  10. 4.6133 km N of Neiafu, Tonga · 3805 days ago · 61 km deep · 98 km away
  11. 4.3140 km SSW of Hihifo, Tonga · 3802 days ago · 191 km deep · 68 km away
  12. 4.2111 km SSW of Hihifo, Tonga · 3789 days ago · 222 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20005eik. Read Sun, Oct 4, 2026, 1:37 PM UTC.