Tonga earthquakes

M4.7 earthquake 86 km ENE of Hihifo, Tonga

A magnitude 4.7 earthquake struck 86 km ENE of Hihifo, Tonga on Sat, May 20, 2017, 6:57 AM GMT+13 (17:57 UTC), 65 km (41 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
4.7 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-05-19 17:57:28 UTC
Depth
65.2 km (40.5 mi), shallow
Epicenter
15.619° S, 173.064° 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 7.8 km horizontally, 6.9 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
107°
Stations used
184

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 11 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.639 km NNE of Hihifo, Tonga · 3421 days ago · 69 km deep · 64 km away
  2. 4.9109 km NNE of Hihifo, Tonga · 3417 days ago · 10 km deep · 58 km away
  3. 4.6108 km NE of Hihifo, Tonga · 3417 days ago · 12 km deep · 45 km away
  4. 4.2119 km NE of Hihifo, Tonga · 3409 days ago · 36 km deep · 48 km away
  5. 4.479 km NNE of Hihifo, Tonga · 3404 days ago · 10 km deep · 65 km away
  6. 4.9100 km NNE of Hihifo, Tonga · 3393 days ago · 10 km deep · 76 km away
  7. 4.585 km NNE of Hihifo, Tonga · 3392 days ago · 26 km deep · 52 km away
  8. 4.3137 km NNE of Hihifo, Tonga · 3381 days ago · 10 km deep · 94 km away
  9. 4.687 km E of Hihifo, Tonga · 3380 days ago · 27 km deep · 53 km away
  10. 4.5117 km NE of Hihifo, Tonga · 3379 days ago · 35 km deep · 55 km away
  11. 4.187 km NE of Hihifo, Tonga · 3371 days ago · 127 km deep · 40 km away

Before

  1. 4.7136 km ENE of Hihifo, Tonga · 3429 days ago · 10 km deep · 51 km away
  2. 4.591 km ENE of Hihifo, Tonga · 3431 days ago · 10 km deep · 8 km away
  3. 4.293 km NE of Hihifo, Tonga · 3439 days ago · 39 km deep · 25 km away
  4. 4.7107 km NNE of Hihifo, Tonga · 3440 days ago · 25 km deep · 83 km away
  5. 4.425 km SSE of Hihifo, Tonga · 3446 days ago · 86 km deep · 88 km away
  6. 4.925 km SSE of Hihifo, Tonga · 3448 days ago · 66 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008tlj. Read Fri, Oct 2, 2026, 7:10 PM UTC.