Tonga earthquakes

M4.7 earthquake 133 km ESE of Neiafu, Tonga

A magnitude 4.7 earthquake struck 133 km ESE of Neiafu, Tonga on Mon, Oct 21, 2019, 9:01 PM GMT+13 (08:01 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.0 63 km E 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
4.7 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-10-21 08:01:55 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
19.008° S, 172.770° 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 11.2 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.11
Depth from
Operator assigned
Station coverage gap
132°
Stations used
35

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 4 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 4.5192 km ESE of Neiafu, Tonga · 2536 days ago · 10 km deep · 60 km away
  2. 4.6188 km E of Neiafu, Tonga · 2516 days ago · 10 km deep · 71 km away
  3. 5.063 km E of Neiafu, Tonga · 2502 days ago · 10 km deep · 80 km away
  4. 4.6196 km E of Neiafu, Tonga · 2481 days ago · 10 km deep · 94 km away

Before

  1. 5.1200 km E of Neiafu, Tonga · 2538 days ago · 10 km deep · 95 km away
  2. 4.8193 km E of Neiafu, Tonga · 2538 days ago · 10 km deep · 91 km away
  3. 5.0191 km E of Neiafu, Tonga · 2538 days ago · 10 km deep · 73 km away
  4. 4.3194 km E of Neiafu, Tonga · 2538 days ago · 10 km deep · 97 km away
  5. 5.1183 km E of Neiafu, Tonga · 2539 days ago · 10 km deep · 80 km away
  6. 5.3203 km E of Neiafu, Tonga · 2539 days ago · 10 km deep · 72 km away
  7. 4.7219 km E of Neiafu, Tonga · 2539 days ago · 10 km deep · 95 km away
  8. 4.6182 km E of Neiafu, Tonga · 2539 days ago · 10 km deep · 75 km away
  9. 5.1Tonga region · 2540 days ago · 10 km deep · 32 km away
  10. 5.2143 km E of Neiafu, Tonga · 2546 days ago · 10 km deep · 40 km away
  11. 4.4121 km E of Pangai, Tonga · 2559 days ago · 10 km deep · 98 km away
  12. 4.6146 km E of Neiafu, Tonga · 2561 days ago · 10 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000616s. Read Thu, Oct 1, 2026, 5:20 AM UTC.