M4.7 earthquake 244 km SSW of Vaini, Tonga
A magnitude 4.7 earthquake struck 244 km SSW of Vaini, Tonga on Wed, Jul 31, 2019, 8:16 PM GMT+13 (07:16 UTC), 116 km (72 mi) below the surface.
A larger quake followed: M5.2 263 km SW of Haveluloto, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-07-31 07:16:25 UTC
- Depth
- 115.7 km (71.9 mi), intermediate-depth
- Epicenter
- 23.058° S, 176.451° 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 10.5 km horizontally, 6.5 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 94°
- Stations used
- 47
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.9193 km SW of Haveluloto, Tonga · 2617 days ago · 130 km deep · 92 km away
- 4.4248 km SW of Vaini, Tonga · 2589 days ago · 97 km deep · 32 km away
- 4.3245 km SW of Vaini, Tonga · 2563 days ago · 164 km deep · 69 km away
- 5.2263 km SW of Haveluloto, Tonga · 2561 days ago · 226 km deep · 89 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us60004xue. Read Thu, Oct 1, 2026, 8:50 PM UTC.