Tonga earthquakes

M4.2 earthquake 119 km W of Hihifo, Tonga

A magnitude 4.2 earthquake struck 119 km W of Hihifo, Tonga on Tue, Jan 16, 2018, 3:35 PM GMT-12 (03:35 UTC), 279 km (173 mi) below the surface.

A larger quake followed: M4.7 139 km WNW of Hihifo, Tonga. This one was a foreshock.

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The earthquake

Magnitude
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-01-17 03:35:26 UTC
Depth
278.8 km (173.2 mi), intermediate-depth
Epicenter
16.159° S, 174.890° 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 14.9 km horizontally, 9.6 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
108°
Stations used
40

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.3Tonga · 3175 days ago · 117 km deep · 80 km away
  2. 4.2186 km W of Hihifo, Tonga · 3173 days ago · 305 km deep · 79 km away
  3. 4.4122 km WNW of Hihifo, Tonga · 3168 days ago · 240 km deep · 76 km away
  4. 4.399 km WNW of Hihifo, Tonga · 3143 days ago · 268 km deep · 56 km away
  5. 4.7139 km WNW of Hihifo, Tonga · 3141 days ago · 254 km deep · 58 km away
  6. 4.1189 km WSW of Hihifo, Tonga · 3129 days ago · 228 km deep · 76 km away

Before

  1. 4.973 km SW of Hihifo, Tonga · 3185 days ago · 147 km deep · 71 km away
  2. 4.2140 km WNW of Hihifo, Tonga · 3195 days ago · 250 km deep · 82 km away
  3. 4.520 km WSW of Hihifo, Tonga · 3206 days ago · 127 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000crdg. Read Fri, Oct 2, 2026, 9:59 AM UTC.