M4.2 earthquake 169 km WNW of Neiafu, Tonga
A magnitude 4.2 earthquake struck 169 km WNW of Neiafu, Tonga on Tue, Aug 6, 2019, 7:47 PM GMT+13 (06:47 UTC), 232 km (144 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-08-06 06:47:36 UTC
- Depth
- 232.0 km (144.2 mi), intermediate-depth
- Epicenter
- 18.243° S, 175.529° 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 13.5 km horizontally, 12.3 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 143°
- Stations used
- 16
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.4177 km NW of Neiafu, Tonga · 2610 days ago · 227 km deep · 92 km away
- 4.2125 km NW of Neiafu, Tonga · 2600 days ago · 239 km deep · 85 km away
- 4.294 km W of Neiafu, Tonga · 2600 days ago · 151 km deep · 77 km away
- 4.6107 km WNW of Neiafu, Tonga · 2584 days ago · 246 km deep · 72 km away
- 4.4183 km NW of Neiafu, Tonga · 2574 days ago · 270 km deep · 95 km away
- 4.4170 km NW of Pangai, Tonga · 2571 days ago · 175 km deep · 82 km away
- 4.8104 km WNW of Neiafu, Tonga · 2570 days ago · 175 km deep · 66 km away
- 4.4148 km NW of Neiafu, Tonga · 2567 days ago · 195 km deep · 59 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us600054z5. Read Thu, Oct 1, 2026, 2:28 PM UTC.