M4.9 earthquake 121 km SSW of Lotofag?, Samoa
A magnitude 4.9 earthquake struck 121 km SSW of Lotofag?, Samoa on Sun, Oct 4, 2020, 4:18 PM GMT+14 (02:18 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-10-04 02:18:53 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 14.998° S, 172.272° W
- Region
- Samoa
- 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 9.4 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- Operator assigned
- Station coverage gap
- 64°
- Stations used
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4129 km NE of Hihifo, Tonga · 2136 days ago · 10 km deep · 88 km away
- 4.1132 km ENE of Hihifo, Tonga · 2133 days ago · 10 km deep · 69 km away
Before
Earthquakes todaySamoa earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000c5c2. Read Thu, Oct 1, 2026, 10:31 AM UTC.