Tonga earthquakes

M4.6 earthquake 82 km NE of Hihifo, Tonga

A magnitude 4.6 earthquake struck 82 km NE of Hihifo, Tonga on Wed, Mar 20, 2019, 5:19 PM GMT+14 (03:19 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M6.0 121 km ENE 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
4.6 (mb), light
Local time
UTC
2019-03-20 03:19:11 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
15.413° S, 173.261° 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 11.4 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
105°
Stations used
57

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 11 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.7142 km NE of Hihifo, Tonga · 2747 days ago · 100 km deep · 64 km away
  2. 5.2139 km NE of Hihifo, Tonga · 2733 days ago · 10 km deep · 57 km away
  3. 4.535 km N of Hihifo, Tonga · 2730 days ago · 40 km deep · 62 km away
  4. 5.2103 km ENE of Hihifo, Tonga · 2730 days ago · 10 km deep · 41 km away
  5. 5.295 km ENE of Hihifo, Tonga · 2729 days ago · 10 km deep · 36 km away
  6. 6.0121 km ENE of Hihifo, Tonga · 2726 days ago · 15 km deep · 48 km away · felt by 10
  7. 4.594 km NE of Hihifo, Tonga · 2718 days ago · 10 km deep · 11 km away
  8. 4.9104 km NE of Hihifo, Tonga · 2716 days ago · 10 km deep · 22 km away
  9. 4.6142 km NE of Hihifo, Tonga · 2709 days ago · 22 km deep · 62 km away
  10. 4.6105 km NE of Hihifo, Tonga · 2709 days ago · 10 km deep · 27 km away
  11. 4.5104 km NE of Hihifo, Tonga · 2708 days ago · 10 km deep · 24 km away

Before

  1. 4.3100 km NNE of Hihifo, Tonga · 2751 days ago · 10 km deep · 48 km away
  2. 4.963 km NNW of Hihifo, Tonga · 2758 days ago · 41 km deep · 77 km away
  3. 4.7140 km SSW of Gataivai, Samoa · 2765 days ago · 10 km deep · 75 km away
  4. 4.7102 km NE of Hihifo, Tonga · 2775 days ago · 10 km deep · 21 km away
  5. 4.7131 km NE of Hihifo, Tonga · 2778 days ago · 10 km deep · 49 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000k6mt. Read Mon, Sep 28, 2026, 10:12 AM UTC.