M4.4 earthquake 170 km NW of Pangai, Tonga
A magnitude 4.4 earthquake struck 170 km NW of Pangai, Tonga on Wed, Sep 18, 2019, 6:26 AM GMT+13 (17:26 UTC), 175 km (109 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-09-17 17:26:11 UTC
- Depth
- 174.9 km (108.7 mi), intermediate-depth
- Epicenter
- 18.960° S, 175.707° 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 10.2 km horizontally, 7.6 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 61°
- Stations used
- 34
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 5 in the 30 days before it.
After
- 6.6136 km W of Neiafu, Tonga · 2522 days ago · 10 km deep · 63 km away · felt by 8 · tsunami flag
- 5.5181 km W of Neiafu, Tonga · 2522 days ago · 10 km deep · 40 km away
- 4.9137 km W of Neiafu, Tonga · 2522 days ago · 10 km deep · 64 km away
- 4.5113 km WNW of Pangai, Tonga · 2515 days ago · 10 km deep · 72 km away
- 5.5146 km W of Neiafu, Tonga · 2515 days ago · 10 km deep · 47 km away
- 6.2147 km W of Neiafu, Tonga · 2515 days ago · 10 km deep · 37 km away · felt by 6
Before
- 5.7227 km WNW of Pangai, Tonga · 2584 days ago · 10 km deep · 63 km away
- 5.0183 km WNW of Pangai, Tonga · 2587 days ago · 10 km deep · 47 km away
- 5.0219 km WNW of Pangai, Tonga · 2587 days ago · 6 km deep · 70 km away
- 4.3157 km W of Pangai, Tonga · 2598 days ago · 180 km deep · 69 km away
- 4.294 km W of Neiafu, Tonga · 2600 days ago · 151 km deep · 99 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70005l46. Read Thu, Oct 1, 2026, 9:38 AM UTC.