M4.5 earthquake 141 km E of Neiafu, Tonga
A magnitude 4.5 earthquake struck 141 km E of Neiafu, Tonga on Mon, Mar 19, 2018, 1:30 AM GMT-12 (13:30 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-19 13:30:41 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 18.443° S, 172.663° 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 8.9 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.20
- Depth from
- Operator assigned
- Station coverage gap
- 98°
- Stations used
- 12
Nearby
Within 100 km, magnitude 1.5 and up: 2 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 · 95 km away
- 4.457 km NE of Neiafu, Tonga · 3063 days ago · 119 km deep · 97 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d856. Read Fri, Oct 2, 2026, 4:32 PM UTC.