M4.2 earthquake 80 km N of Neiafu, Tonga
A magnitude 4.2 earthquake struck 80 km N of Neiafu, Tonga on Fri, Mar 2, 2018, 8:00 PM GMT+13 (07:00 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.2 51 km W 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-02 07:00:41 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.924° S, 174.024° 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 10.3 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- Operator assigned
- Station coverage gap
- 197°, poorly surrounded by stations
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.251 km W of Neiafu, Tonga · 3128 days ago · 81 km deep · 90 km away
- 4.4135 km NNE of Neiafu, Tonga · 3103 days ago · 78 km deep · 64 km away
- 4.6161 km NNW of Neiafu, Tonga · 3096 days ago · 10 km deep · 88 km away
- 4.7109 km NNE of Neiafu, Tonga · 3088 days ago · 86 km deep · 46 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d29x. Read Fri, Oct 2, 2026, 1:14 AM UTC.