Tonga earthquakes

M4.4 earthquake 111 km SSW of Hihifo, Tonga

A magnitude 4.4 earthquake struck 111 km SSW of Hihifo, Tonga on Fri, Mar 18, 2016, 2:43 AM GMT-12 (14:43 UTC), 149 km (93 mi) below the surface.

A larger quake followed: M4.7 117 km NNE 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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-03-18 14:43:32 UTC
Depth
148.9 km (92.5 mi), intermediate-depth
Epicenter
16.934° S, 174.034° 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.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 9.8 km horizontally, 7.3 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
73°
Stations used
54

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.554 km SSW of Hihifo, Tonga · 3837 days ago · 81 km deep · 60 km away
  2. 4.5143 km NNE of Neiafu, Tonga · 3837 days ago · 10 km deep · 70 km away
  3. 4.3127 km SSW of Hihifo, Tonga · 3833 days ago · 133 km deep · 20 km away
  4. 4.5149 km NNW of Neiafu, Tonga · 3831 days ago · 132 km deep · 66 km away
  5. 4.5149 km SSW of Hihifo, Tonga · 3821 days ago · 61 km deep · 45 km away
  6. 4.6135 km SSW of Hihifo, Tonga · 3821 days ago · 69 km deep · 29 km away
  7. 4.5117 km SSW of Hihifo, Tonga · 3819 days ago · 64 km deep · 7 km away
  8. 4.693 km SSE of Hihifo, Tonga · 3814 days ago · 10 km deep · 73 km away
  9. 4.6143 km NNW of Neiafu, Tonga · 3813 days ago · 103 km deep · 56 km away
  10. 4.4137 km SSW of Hihifo, Tonga · 3808 days ago · 92 km deep · 28 km away · felt by 1
  11. 4.6133 km N of Neiafu, Tonga · 3806 days ago · 61 km deep · 57 km away
  12. 4.3140 km SSW of Hihifo, Tonga · 3802 days ago · 191 km deep · 38 km away
  13. 4.7117 km NNE of Neiafu, Tonga · 3802 days ago · 60 km deep · 80 km away
  14. 4.439 km WSW of Hihifo, Tonga · 3798 days ago · 139 km deep · 93 km away
  15. 4.282 km SSW of Hihifo, Tonga · 3794 days ago · 128 km deep · 32 km away

Before

  1. 4.154 km SSW of Hihifo, Tonga · 3860 days ago · 94 km deep · 61 km away
  2. 4.8106 km SSE of Hihifo, Tonga · 3870 days ago · 56 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20005br5. Read Sun, Oct 4, 2026, 3:15 PM UTC.