Tonga earthquakes

M4.5 earthquake 35 km N of Hihifo, Tonga

A magnitude 4.5 earthquake struck 35 km N of Hihifo, Tonga on Tue, Apr 9, 2019, 7:31 AM GMT+13 (18:31 UTC), 40 km (25 mi) below the surface.

A larger quake followed: M5.2 103 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
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-04-08 18:31:30 UTC
Depth
39.7 km (24.7 mi), shallow
Epicenter
15.630° S, 173.796° 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 6.7 km horizontally, 9.8 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
119°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 5.2103 km ENE of Hihifo, Tonga · 2733 days ago · 10 km deep · 95 km away
  2. 5.295 km ENE of Hihifo, Tonga · 2733 days ago · 10 km deep · 87 km away
  3. 4.421 km SSW of Hihifo, Tonga · 2730 days ago · 117 km deep · 57 km away
  4. 4.594 km NE of Hihifo, Tonga · 2722 days ago · 10 km deep · 72 km away
  5. 4.9104 km NE of Hihifo, Tonga · 2719 days ago · 10 km deep · 83 km away
  6. 4.6105 km NE of Hihifo, Tonga · 2712 days ago · 10 km deep · 79 km away
  7. 4.5104 km NE of Hihifo, Tonga · 2711 days ago · 10 km deep · 86 km away
  8. 4.459 km SW of Hihifo, Tonga · 2705 days ago · 160 km deep · 90 km away
  9. 5.1103 km NE of Hihifo, Tonga · 2689 days ago · 10 km deep · 80 km away
  10. 4.4104 km NNE of Hihifo, Tonga · 2676 days ago · 10 km deep · 73 km away

Before

  1. 4.682 km NE of Hihifo, Tonga · 2753 days ago · 10 km deep · 62 km away
  2. 4.3100 km NNE of Hihifo, Tonga · 2755 days ago · 10 km deep · 67 km away
  3. 4.963 km NNW of Hihifo, Tonga · 2761 days ago · 41 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70003794. Read Thu, Oct 1, 2026, 6:04 PM UTC.