Tonga earthquakes

M4.8 earthquake 73 km ESE of Hihifo, Tonga

A magnitude 4.8 earthquake struck 73 km ESE of Hihifo, Tonga on Tue, Oct 17, 2017, 9:00 PM GMT+14 (07:00 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M5.7 76 km NE 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
4.8 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-10-17 07:00:11 UTC
Depth
24.1 km (15.0 mi), shallow
Epicenter
16.298° S, 173.209° 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 10.4 km horizontally, 5.7 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
98°
Stations used
66

Nearest places

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

Nearby

Within 100 km, magnitude 1.8 and up: 11 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.464 km ESE of Hihifo, Tonga · 3263 days ago · 10 km deep · 23 km away
  2. 5.776 km NE of Hihifo, Tonga · 3258 days ago · 10 km deep · 89 km away
  3. 4.6106 km ENE of Hihifo, Tonga · 3258 days ago · 10 km deep · 93 km away
  4. 4.683 km NE of Hihifo, Tonga · 3258 days ago · 10 km deep · 96 km away
  5. 5.073 km ENE of Hihifo, Tonga · 3258 days ago · 10 km deep · 63 km away
  6. 5.487 km ENE of Hihifo, Tonga · 3252 days ago · 10 km deep · 80 km away · felt by 1
  7. 4.732 km SW of Hihifo, Tonga · 3242 days ago · 99 km deep · 85 km away
  8. 4.5117 km SSE of Hihifo, Tonga · 3239 days ago · 33 km deep · 82 km away
  9. 4.970 km S of Hihifo, Tonga · 3232 days ago · 103 km deep · 78 km away
  10. 5.721 km SW of Hihifo, Tonga · 3219 days ago · 155 km deep · 78 km away · felt by 1
  11. 4.648 km SSE of Hihifo, Tonga · 3213 days ago · 10 km deep · 47 km away

Before

  1. 5.477 km SSE of Hihifo, Tonga · 3302 days ago · 30 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000at74. Read Fri, Oct 2, 2026, 7:08 AM UTC.