Tonga earthquakes

M4.4 earthquake 93 km ESE of Pangai, Tonga

A magnitude 4.4 earthquake struck 93 km ESE of Pangai, Tonga on Sat, Jul 22, 2017, 12:45 AM GMT+13 (11:45 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.4 111 km E 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.

Open the live map with earthquakes

The earthquake

Magnitude
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-07-21 11:45:12 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
20.210° S, 173.561° 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 13.7 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.18
Depth from
Operator assigned
Station coverage gap
83°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 5.087 km ESE of Pangai, Tonga · 3359 days ago · 10 km deep · 12 km away
  2. 4.787 km SE of Pangai, Tonga · 3359 days ago · 10 km deep · 23 km away
  3. 4.5116 km SE of Pangai, Tonga · 3351 days ago · 10 km deep · 34 km away
  4. 5.4111 km E of Pangai, Tonga · 3348 days ago · 10 km deep · 43 km away · felt by 1
  5. 5.0121 km ESE of Pangai, Tonga · 3343 days ago · 10 km deep · 39 km away
  6. 4.4125 km E of Pangai, Tonga · 3338 days ago · 10 km deep · 69 km away
  7. 4.9Tonga · 3337 days ago · 10 km deep · 51 km away
  8. 4.7151 km ESE of Pangai, Tonga · 3327 days ago · 10 km deep · 59 km away
  9. 4.6135 km ESE of Pangai, Tonga · 3317 days ago · 10 km deep · 45 km away
  10. 4.334 km E of Pangai, Tonga · 3309 days ago · 35 km deep · 70 km away
  11. 4.8112 km ESE of Pangai, Tonga · 3309 days ago · 10 km deep · 26 km away
  12. 4.5119 km E of Pangai, Tonga · 3303 days ago · 10 km deep · 55 km away

Before

  1. 4.9101 km ENE of ‘Ohonua, Tonga · 3363 days ago · 10 km deep · 91 km away
  2. 5.7119 km ESE of Pangai, Tonga · 3366 days ago · 7 km deep · 27 km away
  3. 5.6112 km ESE of Pangai, Tonga · 3366 days ago · 16 km deep · 22 km away
  4. 4.6108 km ESE of Pangai, Tonga · 3369 days ago · 10 km deep · 18 km away
  5. 4.9111 km ESE of Pangai, Tonga · 3374 days ago · 10 km deep · 25 km away
  6. 4.4132 km ESE of Pangai, Tonga · 3380 days ago · 35 km deep · 40 km away
  7. 4.279 km SE of Pangai, Tonga · 3385 days ago · 35 km deep · 43 km away
  8. 4.6112 km SE of Pangai, Tonga · 3385 days ago · 10 km deep · 41 km away

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000a1cl. Read Sun, Oct 4, 2026, 12:25 AM UTC.