Pacific Northwest

Scientists have captured a subduction zone off Vancouver Island in the process of tearing itself apart, suggesting these massive tectonic systems may die piece by piece rather than all at once. The finding offers new insight into how subduction zones end over geological time, with implications for understanding seismic hazards in the Pacific Northwest, where the Cascadia zone poses earthquake and tsunami risks.

A new study reports that the Earth's crust is actively tearing apart beneath the Pacific Northwest, the region long watched for its Cascadia subduction zone earthquake risk. The findings describe ongoing deformation and rifting processes along the seabed off the coast of Oregon and Washington, adding to scientific understanding of how tectonic plates behave in the area.

Three earthquakes of around magnitude 5.0 struck off the coast near Vancouver Island in British Columbia, Canada. The quakes, hitting in quick succession, were recorded by seismologists in the seismically active Cascadia region off the Pacific Northwest coast. There were no immediate reports of damage or injuries, and authorities did not issue tsunami warnings. Residents along the coast reported feeling light shaking, and monitoring agencies continue to track aftershocks in the area.