M4.5 earthquake 184 km NW of Neiafu, Tonga
A magnitude 4.5 earthquake struck 184 km NW of Neiafu, Tonga on Sat, Mar 31, 2018, 6:33 AM GMT-12 (18:33 UTC), 228 km (142 mi) below the surface.
A larger quake followed: M4.7 133 km WNW 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
- 2018-03-31 18:33:07 UTC
- Depth
- 228.3 km (141.8 mi), intermediate-depth
- Epicenter
- 17.353° S, 175.077° 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 11.6 km horizontally, 8.1 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 70°
- Stations used
- 48
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.6161 km NNW of Neiafu, Tonga · 3096 days ago · 10 km deep · 62 km away
- 4.7133 km WNW of Neiafu, Tonga · 3095 days ago · 236 km deep · 91 km away
- 4.4144 km WNW of Neiafu, Tonga · 3079 days ago · 256 km deep · 96 km away
- 4.3128 km NW of Neiafu, Tonga · 3074 days ago · 187 km deep · 56 km away
- 4.3137 km SSW of Hihifo, Tonga · 3064 days ago · 134 km deep · 73 km away
- 4.7127 km NW of Neiafu, Tonga · 3063 days ago · 205 km deep · 62 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000dvkv. Read Fri, Oct 2, 2026, 12:18 AM UTC.