M4.6 earthquake 284 km S of ‘Ohonua, Tonga
A magnitude 4.6 earthquake struck 284 km S of ‘Ohonua, Tonga on Mon, Mar 26, 2018, 3:15 AM GMT+13 (14:15 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.2 265 km S of ‘Ohonua, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-25 14:15:14 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 23.889° S, 175.210° 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 7.9 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.21
- Depth from
- Operator assigned
- Station coverage gap
- 168°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.7south of Tonga · 3106 days ago · 10 km deep · 31 km away
- 5.2265 km S of ‘Ohonua, Tonga · 3092 days ago · 10 km deep · 19 km away
- 5.0242 km S of ‘Ohonua, Tonga · 3073 days ago · 10 km deep · 42 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000db15. Read Fri, Oct 2, 2026, 11:37 AM UTC.