M4.8 earthquake 130 km W of Pangai, Tonga
A magnitude 4.8 earthquake struck 130 km W of Pangai, Tonga on Fri, Mar 9, 2018, 8:06 PM GMT+13 (07:06 UTC), 173 km (108 mi) below the surface.
A larger quake followed: M5.1 122 km NW of Nuku‘alofa, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-09 07:06:39 UTC
- Depth
- 173.2 km (107.6 mi), intermediate-depth
- Epicenter
- 19.830° S, 175.602° 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 11.6 km horizontally, 8.1 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 97°
- Stations used
- 34
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.1122 km NW of Nuku‘alofa, Tonga · 3123 days ago · 138 km deep · 78 km away
- 4.2139 km WNW of Pangai, Tonga · 3086 days ago · 263 km deep · 68 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d216. Read Thu, Oct 1, 2026, 9:34 AM UTC.