6.6Strong
M 6.6 - South Shetland Islands
South Shetland Islands
March 20, 2026 at 9:22 AM UTC
Seismic Data
Magnitude
M6.6
Strong
Depth
4.9 km
below surface
Coordinates
61.1525ยฐS, 56.2683ยฐW
epicenter
Shakemap MMI
5.0
Modified Mercalli Intensity
About This Earthquake
This was a strong earthquake registering M6.6 on the moment magnitude scale. It struck at South Shetland Islands at a depth of 4.9 km below the surface.
The earthquake occurred on March 20, 2026 at 9:22 AM UTC. View the full USGS event page for detailed waveform data, station information, and ShakeMap products: USGS Event us6000shlp.
Frequently Asked Questions
How strong was the South Shetland Islands earthquake?
This was a strong earthquake with a magnitude of 6.6. Earthquakes of this magnitude can cause significant structural damage.
Where was the South Shetland Islands earthquake felt?
The earthquake occurred at South Shetland Islands at a depth of 4.9 km.