M4.7 earthquake 133 km WNW of Neiafu, Tonga
A magnitude 4.7 earthquake struck 133 km WNW of Neiafu, Tonga on Thu, Apr 12, 2018, 10:31 PM GMT+13 (09:31 UTC), 236 km (146 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
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-04-12 09:31:42 UTC
- Depth
- 235.7 km (146.4 mi), intermediate-depth
- Epicenter
- 18.169° S, 175.137° 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 9.9 km horizontally, 7.4 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 63°
- Stations used
- 61
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.3150 km NW of Pangai, Tonga · 3093 days ago · 244 km deep · 87 km away
- 4.4144 km WNW of Neiafu, Tonga · 3079 days ago · 256 km deep · 14 km away
- 4.3128 km NW of Neiafu, Tonga · 3074 days ago · 187 km deep · 61 km away
- 4.7127 km NW of Neiafu, Tonga · 3063 days ago · 205 km deep · 43 km away
- 4.6131 km W of Neiafu, Tonga · 3054 days ago · 212 km deep · 50 km away
- 4.967 km WNW of Neiafu, Tonga · 3048 days ago · 94 km deep · 68 km away · felt by 1
- 4.941 km W of Neiafu, Tonga · 3039 days ago · 58 km deep · 99 km away
- 4.346 km W of Neiafu, Tonga · 3038 days ago · 166 km deep · 89 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000dys6. Read Fri, Oct 2, 2026, 9:14 AM UTC.