M4.4 earthquake 144 km WNW of Neiafu, Tonga
A magnitude 4.4 earthquake struck 144 km WNW of Neiafu, Tonga on Sat, Apr 28, 2018, 4:08 PM GMT+13 (03:08 UTC), 256 km (159 mi) below the surface.
A larger quake followed: M4.9 67 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
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-04-28 03:08:05 UTC
- Depth
- 256.1 km (159.1 mi), intermediate-depth
- Epicenter
- 18.197° S, 175.270° 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 8.6 km horizontally, 8.7 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 93°
- Stations used
- 36
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.3128 km NW of Neiafu, Tonga · 3077 days ago · 187 km deep · 73 km away
- 4.7127 km NW of Neiafu, Tonga · 3066 days ago · 205 km deep · 56 km away
- 4.6131 km W of Neiafu, Tonga · 3057 days ago · 212 km deep · 47 km away
- 4.967 km WNW of Neiafu, Tonga · 3051 days ago · 94 km deep · 78 km away · felt by 1
- 4.346 km W of Neiafu, Tonga · 3041 days ago · 166 km deep · 99 km away
- 4.688 km NNW of Neiafu, Tonga · 3037 days ago · 60 km deep · 90 km away
Before
- 4.3150 km NW of Pangai, Tonga · 3096 days ago · 244 km deep · 80 km away
- 4.7133 km WNW of Neiafu, Tonga · 3098 days ago · 236 km deep · 14 km away
- 4.6143 km W of Neiafu, Tonga · 3109 days ago · 195 km deep · 76 km away
- 4.2107 km WNW of Neiafu, Tonga · 3109 days ago · 180 km deep · 40 km away
- 4.5184 km NW of Neiafu, Tonga · 3109 days ago · 228 km deep · 96 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000dxsx. Read Mon, Oct 5, 2026, 5:40 AM UTC.