M4.7 earthquake 22 km S of Neiafu, Tonga
A magnitude 4.7 earthquake struck 22 km S of Neiafu, Tonga on Mon, Apr 2, 2018, 11:54 AM GMT+13 (22:54 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 105 km ESE 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
- 2018-04-01 22:54:43 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 18.850° S, 173.992° W
- Region
- Tonga
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 9.8 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- Operator assigned
- Station coverage gap
- 92°
- Stations used
- 30
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.9105 km ESE of Neiafu, Tonga · 3066 days ago · 10 km deep · 96 km away
- 4.457 km NE of Neiafu, Tonga · 3063 days ago · 119 km deep · 75 km away
- 4.967 km WNW of Neiafu, Tonga · 3048 days ago · 94 km deep · 75 km away · felt by 1
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000dcaa. Read Fri, Oct 2, 2026, 12:19 AM UTC.