M4.1 earthquake 137 km NW of Neiafu, Tonga
A magnitude 4.1 earthquake struck 137 km NW of Neiafu, Tonga on Sat, Mar 24, 2018, 3:44 AM GMT+13 (14:44 UTC), 226 km (140 mi) below the surface.
A larger quake followed: M4.7 133 km WNW of Neiafu, Tonga. 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
- 2018-03-23 14:44:54 UTC
- Depth
- 225.7 km (140.2 mi), intermediate-depth
- Epicenter
- 17.940° S, 175.055° 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 29.1 km horizontally, 22.6 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 204°, poorly surrounded by stations
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.5184 km NW of Neiafu, Tonga · 3106 days ago · 228 km deep · 65 km away
- 4.2107 km WNW of Neiafu, Tonga · 3106 days ago · 180 km deep · 54 km away
- 4.6161 km NNW of Neiafu, Tonga · 3096 days ago · 10 km deep · 95 km away
- 4.7133 km WNW of Neiafu, Tonga · 3095 days ago · 236 km deep · 27 km away
- 4.4144 km WNW of Neiafu, Tonga · 3079 days ago · 256 km deep · 36 km away
- 4.3128 km NW of Neiafu, Tonga · 3074 days ago · 187 km deep · 38 km away
- 4.7127 km NW of Neiafu, Tonga · 3063 days ago · 205 km deep · 21 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000daq2. Read Fri, Oct 2, 2026, 4:36 AM UTC.