Tonga earthquakes

M4.5 earthquake 104 km NE of Hihifo, Tonga

A magnitude 4.5 earthquake struck 104 km NE of Hihifo, Tonga on Wed, May 1, 2019, 1:38 AM GMT+13 (12:38 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.1 103 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
4.5 (mb), light
Local time
UTC
2019-04-30 12:38:42 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
15.355° S, 173.048° 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 8.2 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
86°
Stations used
43

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 5.1103 km NE of Hihifo, Tonga · 2688 days ago · 10 km deep · 19 km away
  2. 4.5128 km ENE of Hihifo, Tonga · 2679 days ago · 10 km deep · 50 km away
  3. 4.4104 km NNE of Hihifo, Tonga · 2675 days ago · 10 km deep · 53 km away
  4. 4.6107 km NE of Hihifo, Tonga · 2670 days ago · 10 km deep · 26 km away
  5. 4.4110 km NNE of Hihifo, Tonga · 2667 days ago · 10 km deep · 37 km away
  6. 4.5117 km NE of Hihifo, Tonga · 2666 days ago · 10 km deep · 27 km away
  7. 4.6150 km E of Hihifo, Tonga · 2664 days ago · 10 km deep · 99 km away
  8. 4.571 km N of Hihifo, Tonga · 2662 days ago · 35 km deep · 88 km away
  9. 4.5137 km N of Hihifo, Tonga · 2656 days ago · 10 km deep · 88 km away

Before

  1. 4.6105 km NE of Hihifo, Tonga · 2711 days ago · 10 km deep · 29 km away
  2. 4.6142 km NE of Hihifo, Tonga · 2711 days ago · 22 km deep · 39 km away
  3. 4.9104 km NE of Hihifo, Tonga · 2718 days ago · 10 km deep · 10 km away
  4. 4.594 km NE of Hihifo, Tonga · 2721 days ago · 10 km deep · 17 km away
  5. 6.0121 km ENE of Hihifo, Tonga · 2728 days ago · 15 km deep · 25 km away · felt by 10
  6. 5.295 km ENE of Hihifo, Tonga · 2732 days ago · 10 km deep · 28 km away
  7. 5.2103 km ENE of Hihifo, Tonga · 2732 days ago · 10 km deep · 27 km away
  8. 4.535 km N of Hihifo, Tonga · 2732 days ago · 40 km deep · 86 km away
  9. 5.2139 km NE of Hihifo, Tonga · 2735 days ago · 10 km deep · 43 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70003iwb. Read Wed, Sep 30, 2026, 10:09 PM UTC.