M4.5 earthquake 148 km NW of Neiafu, Tonga
A magnitude 4.5 earthquake struck 148 km NW of Neiafu, Tonga on Fri, Aug 25, 2017, 1:08 PM GMT+13 (00:08 UTC), 234 km (145 mi) below the surface.
A larger quake followed: M5.0 152 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
- 2017-08-25 00:08:15 UTC
- Depth
- 233.6 km (145.1 mi), intermediate-depth
- Epicenter
- 17.681° S, 174.951° 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 10.3 km horizontally, 9.7 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 100°
- Stations used
- 32
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.0152 km WNW of Neiafu, Tonga · 3298 days ago · 213 km deep · 87 km away
- 4.6203 km SW of Hihifo, Tonga · 3283 days ago · 266 km deep · 66 km away
- 4.3127 km N of Neiafu, Tonga · 3281 days ago · 145 km deep · 80 km away
- 4.5181 km WNW of Neiafu, Tonga · 3270 days ago · 208 km deep · 50 km away
- 4.3132 km WNW of Neiafu, Tonga · 3267 days ago · 207 km deep · 47 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000abin. Read Fri, Oct 2, 2026, 4:35 AM UTC.