M5.0 Earthquake in the South Sandwich Islands region — April 23, 2026
2026-04-23 05:30:59 UTC (4 hours ago)
On April 23, 2026 at 05:30 UTC, a magnitude 5.0 shallow crustal earthquake struck in the South Sandwich Islands region, at a depth of 10.0 km and coordinates -57.1000°, -24.5095°. This earthquake was detected by 38 seismic stations with good location accuracy and was assigned a USGS significance rating of 385, placing it among routine seismic activity.
The epicenter is located in South Sandwich Islands, a region characterized by the South Sandwich Trench, one of Earth's most remote subduction zones.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
-24.5095°E
Technical Information
Common Questions
How strong was the magnitude 5.0 earthquake in the South Sandwich Islands region?
The magnitude 5.0 earthquake that struck in the South Sandwich Islands region on April 23, 2026 at 05:30 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -57.1000°, -24.5095°, which is in the South Sandwich Islands region.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.