M4.7 earthquake 35 km NW of Neiafu, Tonga
A magnitude 4.7 earthquake struck 35 km NW of Neiafu, Tonga on Wed, Aug 7, 2019, 3:10 AM GMT+13 (14:10 UTC), 51 km (32 mi) below the surface.
A larger quake followed: M4.8 104 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
- 4.7 (mb), light
- Local time
- UTC
- 2019-08-06 14:10:14 UTC
- Depth
- 50.8 km (31.6 mi), shallow
- Epicenter
- 18.421° S, 174.216° 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 11.3 km horizontally, 6.0 km in depth
- Magnitude uncertainty
- ±0.21
- Depth from
- From location
- Station coverage gap
- 155°
- Stations used
- 12
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 5 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.2125 km NW of Neiafu, Tonga · 2599 days ago · 239 km deep · 90 km away
- 4.294 km W of Neiafu, Tonga · 2598 days ago · 151 km deep · 71 km away
- 4.742 km NNW of Neiafu, Tonga · 2597 days ago · 10 km deep · 16 km away
- 4.6107 km WNW of Neiafu, Tonga · 2582 days ago · 246 km deep · 74 km away
- 4.8104 km WNW of Neiafu, Tonga · 2568 days ago · 175 km deep · 74 km away
Before
- 4.662 km NNW of Neiafu, Tonga · 2612 days ago · 10 km deep · 35 km away
- 4.288 km WNW of Neiafu, Tonga · 2612 days ago · 104 km deep · 59 km away
- 5.750 km NW of Neiafu, Tonga · 2613 days ago · 10 km deep · 17 km away
- 4.5103 km NW of Neiafu, Tonga · 2617 days ago · 77 km deep · 69 km away
- 4.464 km WSW of Neiafu, Tonga · 2639 days ago · 55 km deep · 63 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us600051bv. Read Wed, Sep 30, 2026, 4:12 AM UTC.