Tonga earthquakes

M4.3 earthquake 115 km SW of Hihifo, Tonga

A magnitude 4.3 earthquake struck 115 km SW of Hihifo, Tonga on Sun, May 10, 2015, 4:47 AM GMT-12 (16:47 UTC), 309 km (192 mi) below the surface.

A larger quake followed: M4.4 147 km NNW of Neiafu, Tonga. This one was a foreshock.

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The earthquake

Magnitude
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2015-05-10 16:47:18 UTC
Depth
308.9 km (191.9 mi), deep
Epicenter
16.623° S, 174.621° 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 16.7 km horizontally, 13.9 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
146°
Stations used
22

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 4.2193 km WSW of Hihifo, Tonga · 4143 days ago · 347 km deep · 89 km away
  2. 4.2102 km SSW of Hihifo, Tonga · 4140 days ago · 83 km deep · 56 km away
  3. 4.184 km SW of Hihifo, Tonga · 4130 days ago · 129 km deep · 31 km away
  4. 4.3168 km W of Hihifo, Tonga · 4120 days ago · 313 km deep · 91 km away
  5. 4.239 km SW of Hihifo, Tonga · 4117 days ago · 108 km deep · 75 km away
  6. 4.4147 km NNW of Neiafu, Tonga · 4117 days ago · 104 km deep · 89 km away

Before

  1. 4.451 km S of Hihifo, Tonga · 4167 days ago · 67 km deep · 90 km away
  2. 4.247 km SSW of Hihifo, Tonga · 4172 days ago · 192 km deep · 74 km away
  3. 4.4102 km W of Hihifo, Tonga · 4172 days ago · 211 km deep · 81 km away
  4. 4.6140 km N of Neiafu, Tonga · 4180 days ago · 92 km deep · 96 km away
  5. 4.5Tonga · 4183 days ago · 38 km deep · 47 km away
  6. 4.5143 km SSW of Hihifo, Tonga · 4183 days ago · 277 km deep · 53 km away
  7. 4.175 km W of Hihifo, Tonga · 4186 days ago · 10 km deep · 80 km away
  8. 4.4186 km WSW of Hihifo, Tonga · 4193 days ago · 10 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10002avg. Read Mon, Oct 5, 2026, 1:01 PM UTC.