Tonga earthquakes

M4.4 earthquake 103 km NNE of Hihifo, Tonga

A magnitude 4.4 earthquake struck 103 km NNE of Hihifo, Tonga on Thu, Sep 19, 2019, 8:48 AM GMT+13 (19:48 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.9 121 km NE of Hihifo, Tonga. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.4 (mb), light
Local time
UTC
2019-09-18 19:48:20 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
15.105° S, 173.401° 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 7.1 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.24
Depth from
Operator assigned
Station coverage gap
156°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 5.690 km ENE of Hihifo, Tonga · 2565 days ago · 10 km deep · 63 km away
  2. 4.7116 km NE of Hihifo, Tonga · 2554 days ago · 10 km deep · 53 km away
  3. 5.2126 km NE of Hihifo, Tonga · 2548 days ago · 10 km deep · 66 km away
  4. 4.8132 km NNE of Hihifo, Tonga · 2536 days ago · 10 km deep · 29 km away
  5. 5.9121 km NE of Hihifo, Tonga · 2536 days ago · 29 km deep · 43 km away · felt by 4
  6. 4.5109 km NE of Hihifo, Tonga · 2535 days ago · 10 km deep · 51 km away
  7. 4.9143 km NE of Hihifo, Tonga · 2535 days ago · 10 km deep · 61 km away
  8. 4.3109 km NE of Hihifo, Tonga · 2533 days ago · 10 km deep · 55 km away
  9. 4.586 km NE of Hihifo, Tonga · 2527 days ago · 10 km deep · 33 km away
  10. 5.8103 km E of Hihifo, Tonga · 2518 days ago · 43 km deep · 95 km away · felt by 11
  11. 5.280 km ENE of Hihifo, Tonga · 2518 days ago · 10 km deep · 71 km away
  12. 4.560 km N of Hihifo, Tonga · 2518 days ago · 110 km deep · 53 km away
  13. 4.693 km NE of Hihifo, Tonga · 2515 days ago · 10 km deep · 27 km away

Before

  1. 4.985 km N of Hihifo, Tonga · 2572 days ago · 73 km deep · 49 km away
  2. 5.794 km NE of Hihifo, Tonga · 2574 days ago · 10 km deep · 37 km away
  3. 4.575 km NNW of Hihifo, Tonga · 2577 days ago · 63 km deep · 61 km away
  4. 4.398 km NNE of Hihifo, Tonga · 2593 days ago · 10 km deep · 16 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005lr6. Read Wed, Sep 30, 2026, 4:29 PM UTC.