Tonga earthquakes

M4.4 earthquake 99 km N of Hihifo, Tonga

A magnitude 4.4 earthquake struck 99 km N of Hihifo, Tonga on Thu, May 18, 2017, 6:58 AM GMT+13 (17:58 UTC), 64 km (40 mi) below the surface.

A larger quake followed: M4.9 109 km NNE 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
2017-05-17 17:58:32 UTC
Depth
64.0 km (39.8 mi), shallow
Epicenter
15.055° S, 173.814° 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 9.0 km horizontally, 21.0 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
164°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.639 km NNE of Hihifo, Tonga · 3421 days ago · 69 km deep · 65 km away
  2. 4.3133 km SW of Gataivai, Samoa · 3417 days ago · 45 km deep · 78 km away
  3. 4.9109 km NNE of Hihifo, Tonga · 3417 days ago · 10 km deep · 63 km away
  4. 4.6108 km NE of Hihifo, Tonga · 3417 days ago · 12 km deep · 76 km away
  5. 4.390 km NNW of Hihifo, Tonga · 3413 days ago · 118 km deep · 43 km away
  6. 4.2119 km NE of Hihifo, Tonga · 3409 days ago · 36 km deep · 87 km away
  7. 4.479 km NNE of Hihifo, Tonga · 3404 days ago · 10 km deep · 37 km away
  8. 4.6107 km NNW of Hihifo, Tonga · 3401 days ago · 84 km deep · 32 km away
  9. 4.9100 km NNE of Hihifo, Tonga · 3393 days ago · 10 km deep · 32 km away
  10. 4.585 km NNE of Hihifo, Tonga · 3392 days ago · 26 km deep · 51 km away
  11. 4.3137 km NNE of Hihifo, Tonga · 3381 days ago · 10 km deep · 61 km away
  12. 4.5117 km NE of Hihifo, Tonga · 3379 days ago · 35 km deep · 76 km away
  13. 4.287 km NNW of Hihifo, Tonga · 3372 days ago · 10 km deep · 23 km away
  14. 4.187 km NE of Hihifo, Tonga · 3372 days ago · 127 km deep · 64 km away

Before

  1. 4.591 km ENE of Hihifo, Tonga · 3431 days ago · 10 km deep · 98 km away
  2. 4.293 km NE of Hihifo, Tonga · 3439 days ago · 39 km deep · 83 km away
  3. 4.7107 km NNE of Hihifo, Tonga · 3440 days ago · 25 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008uu3. Read Fri, Oct 2, 2026, 8:03 PM UTC.