M4.3 earthquake 96 km N of Neiafu, Tonga
A magnitude 4.3 earthquake struck 96 km N of Neiafu, Tonga on Mon, Jul 24, 2017, 4:18 AM GMT+13 (15:18 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.0 141 km N 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-07-23 15:18:24 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.792° S, 174.155° 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 12.2 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.22
- Depth from
- Operator assigned
- Station coverage gap
- 131°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.490 km NW of Neiafu, Tonga · 3327 days ago · 77 km deep · 50 km away
- 4.5148 km NW of Neiafu, Tonga · 3325 days ago · 234 km deep · 85 km away
- 4.431 km N of Neiafu, Tonga · 3314 days ago · 10 km deep · 66 km away
- 5.0141 km N of Neiafu, Tonga · 3301 days ago · 28 km deep · 51 km away
Before
- 4.7145 km NW of Neiafu, Tonga · 3358 days ago · 218 km deep · 84 km away
- 4.1125 km SSW of Hihifo, Tonga · 3358 days ago · 130 km deep · 83 km away
- 4.5139 km NNW of Neiafu, Tonga · 3365 days ago · 80 km deep · 45 km away
- 4.1173 km NW of Neiafu, Tonga · 3367 days ago · 242 km deep · 94 km away
- 4.7131 km S of Hihifo, Tonga · 3369 days ago · 90 km deep · 78 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000a1t7. Read Fri, Oct 2, 2026, 9:41 AM UTC.