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New Study Reveals Complexity of Cascadia Subduction Zone: Implications for Earthquake and Tsunami Hazards
A recent study published in Science Advances sheds light on the intricate structures beneath the seafloor of the Cascadia Subduction Zone, situated off the coasts of southern British Columbia, Washington, Oregon, and northern California. Led by marine geophysicist Suzanne Carbotte from Columbia University's Lamont-Doherty Earth Observatory, the research utilized advanced geophysical instruments to conduct a comprehensive survey of the region. Findings indicate that the megathrust fault zone is not a singular continuous structure but is divided into at least four segments, potentially impacting the behavior of earthquakes and tsunamis in the area. The study highlights the importance of understanding the subterranean complexities to enhance earthquake and tsunami hazard assessment, aiding in the development of building codes and warning systems to mitigate potential risks. Ongoing research aims to further elucidate the implications of these findings and improve preparedness measures for the geologically active Cascadia region.