M4.5 earthquake 80 km SSE of Hihifo, Tonga
A magnitude 4.5 earthquake struck 80 km SSE of Hihifo, Tonga on Sat, Mar 31, 2018, 1:59 PM GMT+14 (23:59 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M4.6 63 km ESE of Hihifo, 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
- 2018-03-30 23:59:20 UTC
- Depth
- 14.7 km (9.1 mi), shallow
- Epicenter
- 16.617° S, 173.489° 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 9.1 km horizontally, 5.5 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 87°
- Stations used
- 63
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
- 4.4135 km NNE of Neiafu, Tonga · 3104 days ago · 78 km deep · 96 km away
- 4.475 km ESE of Hihifo, Tonga · 3093 days ago · 35 km deep · 62 km away
- 4.544 km S of Hihifo, Tonga · 3073 days ago · 140 km deep · 47 km away
- 4.663 km ESE of Hihifo, Tonga · 3066 days ago · 10 km deep · 45 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000dvjz. Read Fri, Oct 2, 2026, 9:33 PM UTC.