Summary:
- Scientists have detected a massive rupture developing deep beneath the Northern Cascadia region, which spans parts of the United States and Canada.
- This rupture is part of the Cascadia subduction zone, where the Juan de Fuca tectonic plate is slowly sliding under the North American plate, causing the potential for a devastating earthquake and tsunami.
- Monitoring this rupture is crucial for understanding the region's seismic activity and preparing communities for the potential natural disaster.