Latest Cascadia subduction zone Stories
The massive subduction zone earthquake in Japan caused a significant level of soil â€œliquefactionâ€ that has surprised researchers with its widespread severity, a new analysis shows.
Every 15 months or so, an unfelt earthquake occurs in western Washington and travels northward to Canada's Vancouver Island.
The major earthquakes that devastated Chile earlier this year and which triggered the catastrophic Indonesian tsunami of 2004 are more than just a distinct possibility to strike the Pacific Northwest coast of the United States, scientists say.
An earthquake hotspot just 50 miles off the Pacific Northwest coast is on the verge of unleashing itself on Seattle, Portland and Vancouver, similar to the damage that shattered Chile.
Link to earthquakes unclear, but tremors seem to increase stress on shallower fracture zone.
For most of a decade, scientists have documented unfelt and slow-moving seismic events, called episodic tremor and slip, showing up in regular cycles under the Olympic Peninsula of Washington state and Vancouver Island in British Columbia.
Some time soon, a powerful earthquake will trigger a massive tsunami that will flood the Pacific Northwest, destroying homes and threatening the lives of tens of thousands of people.
A spike in mysterious underground rumblings observed on a section of the San Andreas fault near Parkfield, California, could indicate a build-up of stress and an increased likelihood of a major earthquake.
A new study evaluates expected ground motion in Seattle, Victoria and Vancouver from earthquakes of magnitude 7.5 - 9.0, providing engineers and policymakers with a new tool to build or retrofit structures to withstand seismic waves from large "subduction" earthquakes off the continent's west coast.
Seattle's tallest buildings are at risk of collapse during a rupture of the Cascadia fault zone in the Pacific Northwest, say US seismic experts.
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