Latest Cascadia subduction zone Stories
Researchers are using modern technology to study "silent earthquakes" along a major fault zone beneath the Nicoya Peninsula in Costa Rica.
In the last decade, scientists have recorded regular episodes of tectonic plates slowly, quietly slipping past each other in western Washington and British Columbia over periods of two weeks or more, releasing as much energy as a magnitude 6 earthquake.
Scientists released the first official statewide forecast of earthquake probabilities for California Monday, reporting a 99 percent probability of a strong and damaging earthquake of magnitude of 6.7 or greater occurring along one of the stateâ€™s major seismic faults within the next 30 years.
A peculiar swarm of earthquakes have been occurring off of Oregonâ€™s central coast, resembling those that happen just prior to a volcanic eruption. However, scientists are baffled as there are no volcanoes in the area.
Discovery means other sites such as the Cascadia Subduction Zone in northwestern North America have potential for more severe earthquakes than once thought
To help prepare for the next megathrust earthquake, a team of researchers used a supercomputer-powered â€œvirtual earthquakeâ€ program to calculate for the first time realistic three-dimensional simulations.
Previous ideas about where giant earthquakes are likely to occur need to be revised. Regions of the earth previously thought to be immune to such events may actually be at high risk of experiencing them.
The magnitude 9.2 earthquake that triggered a devastating tsunami in the Indian Ocean in December of 2004 originated just off the coast of northern Sumatra, but an "energy pulse" â€“ an area where slip on the fault was much greater â€“ created the largest waves, some 100 miles from the epicenter.
The catastrophic tsunami that struck Indonesia and East Asia almost a year ago has done much to heighten the interest, research programs and preparations in the United States for events of this type, but experts say there are areas that need more attention and challenges yet to be met.
Stories of two-headed serpents and epic battles between Thunderbird and Whale, common among Northwest native peoples, have their root in the region's seismic history. New research led by a University of Washington scientist has found stories that could relate to a large Seattle fault earthquake around A.D. 900 and specific eyewitness accounts linked to a mammoth 1700 earthquake and tsunami in the Cascadia subduction zone.
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