M4.4 earthquake 148 km NW of Neiafu, Tonga
A magnitude 4.4 earthquake struck 148 km NW of Neiafu, Tonga on Sat, Sep 21, 2019, 8:02 PM GMT+13 (07:02 UTC), 195 km (121 mi) below the surface.
A larger quake followed: M6.6 136 km W 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), light
- Local time
- UTC
- 2019-09-21 07:02:19 UTC
- Depth
- 195.3 km (121.4 mi), intermediate-depth
- Epicenter
- 17.869° S, 175.129° 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 11.0 km horizontally, 6.7 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 68°
- Stations used
- 28
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.6195 km SW of Hihifo, Tonga · 2542 days ago · 146 km deep · 74 km away
- 5.180 km NW of Neiafu, Tonga · 2538 days ago · 10 km deep · 76 km away
- 5.178 km NW of Neiafu, Tonga · 2534 days ago · 10 km deep · 74 km away · felt by 1
- 6.6136 km W of Neiafu, Tonga · 2521 days ago · 10 km deep · 80 km away · felt by 8 · tsunami flag
- 4.9137 km W of Neiafu, Tonga · 2521 days ago · 10 km deep · 77 km away
- 5.5146 km W of Neiafu, Tonga · 2514 days ago · 10 km deep · 94 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70005mkc. Read Wed, Sep 30, 2026, 3:18 AM UTC.