Tonga earthquakes

M4.4 earthquake 137 km SSW of Hihifo, Tonga

A magnitude 4.4 earthquake struck 137 km SSW of Hihifo, Tonga on Sun, May 1, 2016, 11:35 AM GMT-12 (23:35 UTC), 92 km (57 mi) below the surface.

A larger quake followed: M5.2 105 km SSE of Hihifo, 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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-05-01 23:35:09 UTC
Depth
91.7 km (57.0 mi), intermediate-depth
Epicenter
17.144° S, 174.182° W
Region
Tonga
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

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 11.5 km horizontally, 7.1 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
138°
Stations used
19

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 4.6133 km N of Neiafu, Tonga · 3806 days ago · 61 km deep · 36 km away
  2. 4.3140 km SSW of Hihifo, Tonga · 3803 days ago · 191 km deep · 17 km away
  3. 4.7117 km NNE of Neiafu, Tonga · 3802 days ago · 60 km deep · 68 km away
  4. 4.282 km SSW of Hihifo, Tonga · 3794 days ago · 128 km deep · 56 km away
  5. 4.2111 km SSW of Hihifo, Tonga · 3789 days ago · 222 km deep · 26 km away
  6. 5.2105 km SSE of Hihifo, Tonga · 3769 days ago · 40 km deep · 75 km away
  7. 4.3150 km NNW of Neiafu, Tonga · 3766 days ago · 90 km deep · 23 km away
  8. 4.563 km S of Hihifo, Tonga · 3757 days ago · 47 km deep · 85 km away
  9. 4.6115 km SSW of Hihifo, Tonga · 3756 days ago · 91 km deep · 23 km away

Before

  1. 4.6143 km NNW of Neiafu, Tonga · 3813 days ago · 103 km deep · 28 km away
  2. 4.693 km SSE of Hihifo, Tonga · 3814 days ago · 10 km deep · 97 km away
  3. 4.5117 km SSW of Hihifo, Tonga · 3819 days ago · 64 km deep · 23 km away
  4. 4.6135 km SSW of Hihifo, Tonga · 3822 days ago · 69 km deep · 7 km away
  5. 4.5149 km SSW of Hihifo, Tonga · 3822 days ago · 61 km deep · 19 km away
  6. 4.5149 km NNW of Neiafu, Tonga · 3831 days ago · 132 km deep · 38 km away
  7. 4.3127 km SSW of Hihifo, Tonga · 3833 days ago · 133 km deep · 10 km away
  8. 4.5143 km NNE of Neiafu, Tonga · 3837 days ago · 10 km deep · 68 km away
  9. 4.554 km SSW of Hihifo, Tonga · 3837 days ago · 81 km deep · 85 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10005gch. Read Sun, Oct 4, 2026, 11:08 PM UTC.