Tonga earthquakes

M4.2 earthquake 98 km NNE of Hihifo, Tonga

A magnitude 4.2 earthquake struck 98 km NNE of Hihifo, Tonga on Fri, Sep 30, 2016, 11:55 PM GMT+14 (09:55 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.0 73 km E 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-09-30 09:55:22 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
15.158° S, 173.377° 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 7.3 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.26
Depth from
Operator assigned
Station coverage gap
155°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.1106 km NNE of Hihifo, Tonga · 3650 days ago · 32 km deep · 9 km away
  2. 4.436 km NNW of Hihifo, Tonga · 3639 days ago · 102 km deep · 79 km away
  3. 4.2131 km SW of Gataivai, Samoa · 3635 days ago · 33 km deep · 60 km away
  4. 4.282 km NNW of Hihifo, Tonga · 3629 days ago · 102 km deep · 89 km away
  5. 4.511 km NNW of Hihifo, Tonga · 3627 days ago · 80 km deep · 93 km away
  6. 4.457 km NE of Hihifo, Tonga · 3627 days ago · 57 km deep · 46 km away
  7. 4.7125 km N of Hihifo, Tonga · 3620 days ago · 10 km deep · 69 km away
  8. 5.073 km E of Hihifo, Tonga · 3615 days ago · 10 km deep · 98 km away
  9. 4.7123 km N of Hihifo, Tonga · 3609 days ago · 14 km deep · 43 km away
  10. 4.7116 km NE of Hihifo, Tonga · 3605 days ago · 39 km deep · 48 km away

Before

  1. 4.1115 km ENE of Hihifo, Tonga · 3664 days ago · 81 km deep · 70 km away
  2. 4.5121 km NNE of Hihifo, Tonga · 3671 days ago · 19 km deep · 35 km away
  3. 4.5131 km ENE of Hihifo, Tonga · 3679 days ago · 70 km deep · 92 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20007dip. Read Sun, Oct 4, 2026, 11:08 AM UTC.