M4.1 earthquake 242 km W of Hihifo, Tonga
A magnitude 4.1 earthquake struck 242 km W of Hihifo, Tonga on Fri, Feb 23, 2018, 2:31 AM GMT-12 (14:31 UTC), 305 km (190 mi) below the surface.
A larger quake followed: M4.8 241 km SE of Alo, Wallis and Futuna. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-02-23 14:31:12 UTC
- Depth
- 305.2 km (189.6 mi), deep
- Epicenter
- 16.124° S, 176.058° 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 24.5 km horizontally, 19.2 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 155°
- Stations used
- 18
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.7231 km S of Mata-Utu, Wallis and Futuna · 3142 days ago · 10 km deep · 85 km away
- 4.0251 km SE of Alo, Wallis and Futuna · 3141 days ago · 357 km deep · 46 km away
- 4.8241 km SE of Alo, Wallis and Futuna · 3134 days ago · 35 km deep · 64 km away
- 4.1189 km WSW of Hihifo, Tonga · 3129 days ago · 228 km deep · 85 km away
- 4.8234 km S of Mata-Utu, Wallis and Futuna · 3121 days ago · 10 km deep · 82 km away
- 4.3261 km SE of Alo, Wallis and Futuna · 3098 days ago · 331 km deep · 37 km away
- 4.7235 km W of Hihifo, Tonga · 3090 days ago · 345 km deep · 15 km away
- 4.2158 km W of Hihifo, Tonga · 3088 days ago · 293 km deep · 91 km away
- 4.3235 km SE of Alo, Wallis and Futuna · 3084 days ago · 383 km deep · 82 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000db4x. Read Fri, Oct 2, 2026, 10:30 AM UTC.