Tonga earthquakes

M4.1 earthquake 21 km NNW of Pangai, Tonga

A magnitude 4.1 earthquake struck 21 km NNW of Pangai, Tonga on Sat, Jul 15, 2006, 4:30 PM GMT+13 (03:30 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.2 77 km SSE of Neiafu, 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2006-07-15 03:30:40 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
19.631° S, 174.419° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for usp000enn7. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED
Station coverage gap
214°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 4.933 km W of Pangai, Tonga · 7385 days ago · 25 km deep · 30 km away
  2. 5.277 km SSE of Neiafu, Tonga · 7369 days ago · 29 km deep · 93 km away
  3. 4.846 km NNW of Pangai, Tonga · 7357 days ago · 10 km deep · 25 km away
  4. 4.834 km SSE of Pangai, Tonga · 7346 days ago · 13 km deep · 56 km away
  5. 4.660 km ENE of Pangai, Tonga · 7340 days ago · 92 km deep · 65 km away

Before

  1. 4.751 km E of Pangai, Tonga · 7388 days ago · 19 km deep · 58 km away
  2. 4.665 km E of Pangai, Tonga · 7397 days ago · 10 km deep · 75 km away
  3. 4.687 km WSW of Neiafu, Tonga · 7403 days ago · 131 km deep · 95 km away
  4. 4.222 km SSE of Pangai, Tonga · 7405 days ago · 36 km deep · 44 km away
  5. 4.338 km S of Pangai, Tonga · 7407 days ago · 35 km deep · 60 km away
  6. 4.834 km E of Pangai, Tonga · 7412 days ago · 10 km deep · 49 km away
  7. 4.939 km SSE of Pangai, Tonga · 7413 days ago · 35 km deep · 61 km away
  8. 4.647 km SSW of Pangai, Tonga · 7413 days ago · 50 km deep · 65 km away
  9. 4.532 km SSW of Pangai, Tonga · 7413 days ago · 15 km deep · 51 km away
  10. 4.019 km WSW of Pangai, Tonga · 7413 days ago · 25 km deep · 31 km away
  11. 3.841 km WNW of Pangai, Tonga · 7413 days ago · 42 km deep · 31 km away
  12. 4.926 km SSW of Pangai, Tonga · 7415 days ago · 38 km deep · 44 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000enn7. Read Sun, Oct 4, 2026, 7:59 PM UTC.