“This new marine geodesy technology is a breakthrough for advancing our knowledge of mega-thrust earthquakes,” says Moran. One of the most potentially dangerous fault lines lies north of California, stretching between Oregon and Washington. The proposed observatory seeks to equip scientists with the tools and data needed for comprehensive studies of the tectonic plates – massive portions of the Earth’s crust – that meet in the Cascadia zone, and whose movements trigger earthquakes and tsunamis.Įven a few years of data from the observatory could provide critically important information on tectonic plate movements where it matters most – in the ocean where the plates collide. These Tsunami Hazard Area maps, which cover Del Norte and Mendocino counties, serve two purposes. Cascadia megathrust earthquakes appear to have triggered San Andreas earthquakes roughly two-thirds of the time over the past 3,000 years. The research, detailed in a paper online in the journal Geophysical Research Letters, doesn’t deliver help for forecasting the next magnitude 9-plus, full-zone rupture of the fault. SACRAMENTO On the 10-year remembrance of a tsunami that devastated Japan and damaged many California ports and harbors, the California Geological Survey (CGS) today released two new maps created to ensure public safety on the North Coast. The Cascadia subduction zone is where the Juan de Fuca, Explorer, and Gorda tectonic plates are subducting under the North American plate.
The Northern Cascadia Subduction Zone Observatory would be operated on ONC’s offshore NEPTUNE observatory, a cabled ocean observatory off Canada’s west coast that crosses the major fault zone between two converging tectonic plates. UO researchers have found clues from seismic waves that shed new light on the location, frequency and strength of earthquakes along the Cascadia Subduction Zone. A new onshore-offshore seismic dataset from the Cascadia subduction zone was. Kate Moran, president and CEO of the UVic initiative Ocean Networks Canada (ONC), was awarded $2.4 million toward a $6.1 million project to build an observatory in the Northern Cascadia subduction zone that aims to provide critical information on seismic and tsunami risks in BC. The thermal modeling approach is limited by a lack of information about the.
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