Tonga earthquakes

M4.8 earthquake 112 km ESE of Pangai, Tonga

A magnitude 4.8 earthquake struck 112 km ESE of Pangai, Tonga on Tue, Sep 12, 2017, 10:52 PM GMT+13 (09:52 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M6.1 103 km SE of Pangai, Tonga. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

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
2017-09-12 09:52:05 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
20.130° S, 173.330° 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 9.3 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
83°
Stations used
56

Nearest places

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

Nearby

Within 100 km, magnitude 1.8 and up: 10 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.5119 km E of Pangai, Tonga · 3304 days ago · 10 km deep · 34 km away
  2. 4.447 km ESE of Pangai, Tonga · 3302 days ago · 10 km deep · 66 km away
  3. 4.287 km SSE of Pangai, Tonga · 3293 days ago · 39 km deep · 84 km away
  4. 6.1103 km SE of Pangai, Tonga · 3273 days ago · 10 km deep · 71 km away · felt by 2
  5. 4.4133 km SE of Pangai, Tonga · 3273 days ago · 10 km deep · 72 km away
  6. 4.4144 km E of Pangai, Tonga · 3271 days ago · 10 km deep · 53 km away
  7. 4.5105 km ESE of Pangai, Tonga · 3270 days ago · 10 km deep · 21 km away
  8. 4.4114 km ESE of Pangai, Tonga · 3270 days ago · 10 km deep · 20 km away
  9. 4.677 km SE of Pangai, Tonga · 3263 days ago · 10 km deep · 57 km away
  10. 4.9137 km SE of Pangai, Tonga · 3250 days ago · 10 km deep · 54 km away

Before

  1. 4.334 km E of Pangai, Tonga · 3310 days ago · 35 km deep · 84 km away
  2. 4.6135 km ESE of Pangai, Tonga · 3317 days ago · 10 km deep · 23 km away
  3. 4.7151 km ESE of Pangai, Tonga · 3328 days ago · 10 km deep · 40 km away
  4. 4.6137 km SE of Neiafu, Tonga · 3328 days ago · 10 km deep · 84 km away
  5. 4.9Tonga · 3338 days ago · 10 km deep · 69 km away
  6. 4.4125 km E of Pangai, Tonga · 3338 days ago · 10 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000aknn. Read Sun, Oct 4, 2026, 3:45 PM UTC.