M4.4 earthquake 177 km NW of Neiafu, Tonga
A magnitude 4.4 earthquake struck 177 km NW of Neiafu, Tonga on Thu, Aug 8, 2019, 7:41 PM GMT-12 (07:41 UTC), 227 km (141 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
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-08-09 07:41:28 UTC
- Depth
- 226.6 km (140.8 mi), intermediate-depth
- Epicenter
- 17.496° S, 175.148° 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 7.9 km horizontally, 8.5 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 130°
- Stations used
- 24
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.2125 km NW of Neiafu, Tonga · 2600 days ago · 239 km deep · 53 km away
- 4.6107 km WNW of Neiafu, Tonga · 2584 days ago · 246 km deep · 80 km away
- 4.4183 km NW of Neiafu, Tonga · 2574 days ago · 270 km deep · 6 km away
- 4.8104 km WNW of Neiafu, Tonga · 2570 days ago · 175 km deep · 94 km away
- 4.4148 km NW of Neiafu, Tonga · 2568 days ago · 195 km deep · 42 km away
- 4.7147 km SSW of Hihifo, Tonga · 2566 days ago · 35 km deep · 88 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us600055zt. Read Thu, Oct 1, 2026, 7:04 PM UTC.