M5.0 earthquake 152 km WNW of Neiafu, Tonga
A magnitude 5.0 earthquake struck 152 km WNW of Neiafu, Tonga on Thu, Sep 21, 2017, 1:05 PM GMT+13 (00:05 UTC), 213 km (132 mi) below the surface.
A larger quake followed: M6.1 156 km NW of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-09-21 00:05:20 UTC
- Depth
- 212.7 km (132.2 mi), intermediate-depth
- Epicenter
- 18.337° S, 175.394° 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 10.0 km horizontally, 4.3 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 74°
- Stations used
- 140
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.0 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.7120 km W of Neiafu, Tonga · 3283 days ago · 10 km deep · 54 km away
- 4.6170 km WNW of Pangai, Tonga · 3282 days ago · 188 km deep · 82 km away
- 6.1156 km NW of Pangai, Tonga · 3281 days ago · 10 km deep · 75 km away · felt by 1
- 4.5181 km WNW of Neiafu, Tonga · 3270 days ago · 208 km deep · 65 km away
- 4.3132 km WNW of Neiafu, Tonga · 3267 days ago · 207 km deep · 43 km away
- 4.7123 km WNW of Neiafu, Tonga · 3248 days ago · 199 km deep · 37 km away
- 4.7140 km W of Neiafu, Tonga · 3244 days ago · 242 km deep · 17 km away
- 4.1122 km NW of Neiafu, Tonga · 3242 days ago · 212 km deep · 63 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000as7z. Read Fri, Oct 2, 2026, 10:04 AM UTC.