M4.4 earthquake 100 km WNW of Pangai, Tonga
A magnitude 4.4 earthquake struck 100 km WNW of Pangai, Tonga on Mon, Sep 10, 2018, 8:57 PM GMT+13 (07:57 UTC), 207 km (129 mi) below the surface.
A larger quake followed: M4.9 144 km NW of Pangai, 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
- 2018-09-10 07:57:44 UTC
- Depth
- 207.0 km (128.6 mi), intermediate-depth
- Epicenter
- 19.520° S, 175.265° 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 9.9 km horizontally, 5.0 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 49°
- Stations used
- 140
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.1154 km W of Neiafu, Tonga · 2938 days ago · 149 km deep · 90 km away
- 4.9144 km NW of Pangai, Tonga · 2906 days ago · 10 km deep · 60 km away
- 4.1190 km WNW of Pangai, Tonga · 2903 days ago · 238 km deep · 90 km away
- 4.5168 km NNW of Nuku‘alofa, Tonga · 2897 days ago · 10 km deep · 87 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000hgrg. Read Fri, Oct 2, 2026, 3:17 AM UTC.