Tonga earthquakes

M4.2 earthquake Tonga

A magnitude 4.2 earthquake struck in Tonga on Wed, Mar 1, 2017, 8:37 PM GMT-12 (08:37 UTC), 107 km (67 mi) below the surface.

A larger quake followed: M5.5 65 km SSE of Hihifo, Tonga. This one was a foreshock.

More in Tonga

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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
2017-03-02 08:37:12 UTC
Depth
107.1 km (66.6 mi), intermediate-depth
Epicenter
16.757° S, 174.051° 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 12.4 km horizontally, 9.0 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
139°
Stations used
15

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.7121 km N of Neiafu, Tonga · 3496 days ago · 57 km deep · 89 km away
  2. 4.783 km SE of Hihifo, Tonga · 3491 days ago · 28 km deep · 95 km away
  3. 4.749 km SW of Hihifo, Tonga · 3487 days ago · 127 km deep · 63 km away
  4. 4.516 km SSE of Hihifo, Tonga · 3475 days ago · 110 km deep · 80 km away
  5. 4.4151 km SSW of Hihifo, Tonga · 3457 days ago · 104 km deep · 59 km away
  6. 5.119 km SSW of Hihifo, Tonga · 3456 days ago · 97 km deep · 73 km away
  7. 4.536 km ESE of Hihifo, Tonga · 3454 days ago · 129 km deep · 92 km away
  8. 4.4150 km N of Neiafu, Tonga · 3452 days ago · 126 km deep · 62 km away
  9. 4.925 km SSE of Hihifo, Tonga · 3448 days ago · 66 km deep · 78 km away
  10. 4.425 km SSE of Hihifo, Tonga · 3446 days ago · 86 km deep · 78 km away
  11. 5.565 km SSE of Hihifo, Tonga · 3446 days ago · 59 km deep · 50 km away · felt by 1

Before

  1. 4.951 km SW of Hihifo, Tonga · 3515 days ago · 92 km deep · 51 km away
  2. 4.270 km SW of Hihifo, Tonga · 3516 days ago · 139 km deep · 39 km away
  3. 4.3113 km SSW of Hihifo, Tonga · 3517 days ago · 89 km deep · 24 km away
  4. 4.394 km SW of Hihifo, Tonga · 3518 days ago · 176 km deep · 41 km away
  5. 4.252 km WSW of Hihifo, Tonga · 3529 days ago · 157 km deep · 66 km away
  6. 4.7136 km SSW of Hihifo, Tonga · 3530 days ago · 117 km deep · 43 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000886h. Read Sat, Oct 3, 2026, 6:22 AM UTC.