Tonga earthquakes

M4.6 earthquake 135 km ESE of Pangai, Tonga

A magnitude 4.6 earthquake struck 135 km ESE of Pangai, Tonga on Mon, Sep 4, 2017, 8:35 PM GMT+13 (07:35 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
4.6 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-09-04 07:35:11 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
20.217° S, 173.130° 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 6.3 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
83°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 10 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.8112 km ESE of Pangai, Tonga · 3310 days ago · 10 km deep · 23 km away
  2. 4.5119 km E of Pangai, Tonga · 3304 days ago · 10 km deep · 42 km away
  3. 4.447 km ESE of Pangai, Tonga · 3303 days ago · 10 km deep · 88 km away
  4. 4.287 km SSE of Pangai, Tonga · 3294 days ago · 39 km deep · 98 km away
  5. 6.1103 km SE of Pangai, Tonga · 3274 days ago · 10 km deep · 82 km away · felt by 2
  6. 4.4133 km SE of Pangai, Tonga · 3274 days ago · 10 km deep · 73 km away
  7. 4.4144 km E of Pangai, Tonga · 3271 days ago · 10 km deep · 51 km away
  8. 4.5105 km ESE of Pangai, Tonga · 3271 days ago · 10 km deep · 36 km away
  9. 4.4114 km ESE of Pangai, Tonga · 3271 days ago · 10 km deep · 28 km away
  10. 4.677 km SE of Pangai, Tonga · 3264 days ago · 10 km deep · 75 km away

Before

  1. 4.7151 km ESE of Pangai, Tonga · 3328 days ago · 10 km deep · 18 km away
  2. 4.6137 km SE of Neiafu, Tonga · 3329 days ago · 10 km deep · 87 km away
  3. 4.9Tonga · 3339 days ago · 10 km deep · 75 km away
  4. 4.4125 km E of Pangai, Tonga · 3339 days ago · 10 km deep · 56 km away
  5. 5.0121 km ESE of Pangai, Tonga · 3344 days ago · 10 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000armq. Read Mon, Oct 5, 2026, 6:36 AM UTC.