Tonga earthquakes

M4.4 earthquake 108 km SSW of Hihifo, Tonga

A magnitude 4.4 earthquake struck 108 km SSW of Hihifo, Tonga on Sat, May 20, 2017, 4:14 AM GMT-12 (16:14 UTC), 95 km (59 mi) below the surface.

A larger quake followed: M5.3 132 km SSE of Hihifo, Tonga. This one was a foreshock.

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The earthquake

Magnitude
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-05-20 16:14:14 UTC
Depth
95.1 km (59.1 mi), intermediate-depth
Epicenter
16.864° S, 174.178° 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 10.7 km horizontally, 14.1 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
131°
Stations used
19

Nearby

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

After

  1. 5.3132 km SSE of Hihifo, Tonga · 3420 days ago · 10 km deep · 75 km away
  2. 4.567 km S of Hihifo, Tonga · 3419 days ago · 73 km deep · 46 km away
  3. 4.5114 km SSE of Hihifo, Tonga · 3401 days ago · 23 km deep · 95 km away
  4. 4.2156 km NNW of Neiafu, Tonga · 3392 days ago · 240 km deep · 88 km away
  5. 4.9109 km SSE of Hihifo, Tonga · 3389 days ago · 138 km deep · 62 km away
  6. 4.7131 km S of Hihifo, Tonga · 3369 days ago · 90 km deep · 42 km away
  7. 4.1173 km NW of Neiafu, Tonga · 3367 days ago · 242 km deep · 98 km away
  8. 4.5139 km NNW of Neiafu, Tonga · 3365 days ago · 80 km deep · 67 km away

Before

  1. 4.993 km SSE of Hihifo, Tonga · 3427 days ago · 22 km deep · 64 km away
  2. 4.3111 km SSW of Hihifo, Tonga · 3428 days ago · 148 km deep · 10 km away
  3. 4.6137 km NNE of Neiafu, Tonga · 3440 days ago · 11 km deep · 85 km away
  4. 4.4157 km SSW of Hihifo, Tonga · 3441 days ago · 157 km deep · 52 km away
  5. 5.565 km SSE of Hihifo, Tonga · 3445 days ago · 59 km deep · 68 km away · felt by 1
  6. 4.425 km SSE of Hihifo, Tonga · 3445 days ago · 86 km deep · 95 km away
  7. 4.925 km SSE of Hihifo, Tonga · 3447 days ago · 66 km deep · 95 km away
  8. 4.4150 km N of Neiafu, Tonga · 3451 days ago · 126 km deep · 49 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008vgd. Read Fri, Oct 2, 2026, 8:07 AM UTC.