M4.5 earthquake 237 km SE of Hihifo, Tonga
A magnitude 4.5 earthquake struck 237 km SE of Hihifo, Tonga on Sat, Aug 26, 2017, 7:16 PM GMT+13 (06:16 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 188 km NE 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
- 2017-08-26 06:16:38 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.351° S, 172.107° 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 6.6 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- Operator assigned
- Station coverage gap
- 55°
- Stations used
- 18
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 3 in the 30 days before it.
After
- 4.6157 km ENE of Neiafu, Tonga · 3324 days ago · 10 km deep · 94 km away
- 4.9188 km NE of Neiafu, Tonga · 3323 days ago · 10 km deep · 71 km away
- 4.4190 km NE of Neiafu, Tonga · 3321 days ago · 10 km deep · 56 km away
- 4.5213 km NE of Neiafu, Tonga · 3321 days ago · 10 km deep · 34 km away
- 4.7155 km ESE of Hihifo, Tonga · 3311 days ago · 10 km deep · 86 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000ad6t. Read Sun, Oct 4, 2026, 4:32 AM UTC.