Tonga earthquakes

M4.5 earthquake 273 km ENE of Neiafu, Tonga

A magnitude 4.5 earthquake struck 273 km ENE of Neiafu, Tonga on Thu, Sep 19, 2019, 9:15 PM GMT-11 (08:15 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.4 204 km ENE of Neiafu, Tonga. This one was a foreshock.

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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
4.5 (mb), light
Local time
UTC
2019-09-20 08:15:26 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
17.515° S, 171.684° 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 8.7 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.16
Depth from
Operator assigned
Station coverage gap
111°
Stations used
22

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.5194 km ENE of Neiafu, Tonga · 2568 days ago · 10 km deep · 80 km away
  2. 4.3233 km ENE of Neiafu, Tonga · 2568 days ago · 10 km deep · 46 km away
  3. 4.6206 km ENE of Neiafu, Tonga · 2567 days ago · 10 km deep · 86 km away
  4. 4.7203 km ENE of Neiafu, Tonga · 2567 days ago · 10 km deep · 75 km away
  5. 4.6217 km ENE of Neiafu, Tonga · 2567 days ago · 10 km deep · 73 km away
  6. 4.3200 km ENE of Neiafu, Tonga · 2567 days ago · 10 km deep · 99 km away
  7. 4.4228 km ENE of Neiafu, Tonga · 2566 days ago · 10 km deep · 48 km away
  8. 5.4204 km ENE of Neiafu, Tonga · 2539 days ago · 10 km deep · 93 km away
  9. 4.6198 km ENE of Neiafu, Tonga · 2538 days ago · 10 km deep · 100 km away
  10. 4.3200 km ENE of Neiafu, Tonga · 2538 days ago · 10 km deep · 86 km away
  11. 4.5211 km ENE of Neiafu, Tonga · 2538 days ago · 10 km deep · 85 km away
  12. 4.4200 km ENE of Neiafu, Tonga · 2538 days ago · 10 km deep · 97 km away
  13. 4.5246 km ENE of Neiafu, Tonga · 2538 days ago · 10 km deep · 37 km away
  14. 4.5202 km NE of Neiafu, Tonga · 2535 days ago · 10 km deep · 84 km away
  15. 5.2201 km ENE of Neiafu, Tonga · 2526 days ago · 10 km deep · 76 km away

Before

  1. 5.0202 km ENE of Neiafu, Tonga · 2568 days ago · 10 km deep · 98 km away
  2. 5.3203 km ENE of Neiafu, Tonga · 2568 days ago · 10 km deep · 93 km away
  3. 4.6218 km ENE of Neiafu, Tonga · 2570 days ago · 10 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005mjx. Read Wed, Sep 30, 2026, 11:34 PM UTC.