M4.9 earthquake 105 km ESE of Neiafu, Tonga
A magnitude 4.9 earthquake struck 105 km ESE of Neiafu, Tonga on Sat, May 12, 2018, 1:36 AM GMT+13 (12:36 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.7 Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-05-11 12:36:45 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 19.172° S, 173.141° 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 11.3 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- Operator assigned
- Station coverage gap
- 124°
- Stations used
- 32
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000e6k2. Read Fri, Oct 2, 2026, 3:02 AM UTC.