M4.6 earthquake 52 km WNW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 52 km WNW of Neiafu, Tonga on Sun, Mar 15, 2015, 11:17 AM GMT+13 (22:17 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M5.1 33 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-03-14 22:17:23 UTC
- Depth
- 34.6 km (21.5 mi), shallow
- Epicenter
- 18.525° S, 174.467° 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 13.6 km horizontally, 7.3 km in depth
- Magnitude uncertainty
- ±0.21
- Depth from
- FROM_LOCATION
- Station coverage gap
- 110°
- Stations used
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 6 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.4101 km NW of Pangai, Tonga · 4219 days ago · 73 km deep · 74 km away
- 4.441 km WNW of Neiafu, Tonga · 4217 days ago · 43 km deep · 19 km away
- 4.471 km NW of Pangai, Tonga · 4217 days ago · 243 km deep · 99 km away
- 4.7107 km WSW of Neiafu, Tonga · 4213 days ago · 72 km deep · 71 km away
- 5.133 km WNW of Neiafu, Tonga · 4194 days ago · 35 km deep · 19 km away · felt by 1
- 4.244 km W of Neiafu, Tonga · 4177 days ago · 191 km deep · 10 km away
Before
- 4.656 km W of Neiafu, Tonga · 4222 days ago · 20 km deep · 16 km away
- 4.9145 km W of Neiafu, Tonga · 4222 days ago · 234 km deep · 93 km away
- 4.678 km NNW of Neiafu, Tonga · 4231 days ago · 10 km deep · 68 km away
- 4.372 km NW of Neiafu, Tonga · 4233 days ago · 155 km deep · 31 km away
- 4.1136 km NW of Neiafu, Tonga · 4234 days ago · 134 km deep · 100 km away
- 4.9103 km W of Neiafu, Tonga · 4239 days ago · 45 km deep · 56 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10001nfn. Read Mon, Oct 5, 2026, 4:07 AM UTC.