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Tectonics and Geodynamics of the Cascadia Subduction Zone
Elements, 2022The Cascadia subduction zone, where the young and thin oceanic Juan de Fuca plate sinks beneath western North America, represents a thermally hot endmember of global subduction systems. Cascadia exhibits complex and three-dimensional heterogeneities including variable coupling between the overriding and downgoing plates, the amount of water carried ...
Haiying Gao, Maureen D. Long
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Volcano, Earthquake, and Tsunami Hazards of the Cascadia Subduction Zone
Elements, 2022Subduction zones produce some of Earth’s most devastating geological events. Recent eruptions of Mount St. Helens and great earthquakes and tsunamis in Japan and Sumatra provide stark examples of the destructive power of subduction-related hazards. In the Cascadia subduction zone, large earthquakes, tsunamis, and volcanic eruptions have occurred in the
Elizabeth G. Westby +2 more
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Periodic Slow Earthquakes from the Cascadia Subduction Zone
Science, 2002Continuous geodetic measurements from convergent margins have shown that deep transient creep events can release large amounts of strain energy without detectable seismic shaking, and they are thus known as slow or silent earthquakes. Because subduction zones generate the largest earthquakes,
Miller, M. Meghan +3 more
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Postglacial rebound at the northern Cascadia subduction zone
Quaternary Science Reviews, 2000Postglacial rebound is the response of the Earth to the decay of ice-sheets. A postglacial rebound model explains crustal tilting and rapid uplift at the northern Cascadia subduction zone that occurred during retreat of the Cordilleran ice-sheet. Observations explained by the model include the shoreline tilts of two proglacial lakes that formed at 13.5}
Thomas S. James +3 more
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Simulation of Tsunamis from Great Earthquakes on the Cascadia Subduction Zone
Science, 1990Large earthquakes occur episodically in the Cascadia subduction zone. A numerical model has been used to simulate and assess the hazards of a tsunami generated by a hypothetical earthquake of magnitude 8.5 associated with rupture of the northern sections of the subduction zone.
M K, Ng, P H, Leblond, T S, Murty
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Late Holocene Tectonics and Paleoseismicity, Southern Cascadia Subduction Zone
Science, 1992Holocene deformation indicative of large subduction-zone earthquakes has occurred on two large thrust fault systems in the Humboldt Bay region of northern California. Displaced stratigraphic markers record three offsets of 5 to 7 meters each on the Little Salmon fault during the past 1700 years.
Clarke, Samuel H., Jr., Carver, Gary A.
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Radiocarbon test of earthquake magnitude at the Cascadia subduction zone
Nature, 1991THE Cascadia subduction zone, which extends along the northern Pacific coast of North America, might produce earthquakes of magnitude 8 or 9 ('great' earthquakes) even though it has not done so during the past 200 years of European observation1–7. Much of the evidence for past Cascadia earthquakes comes from former meadows and forests that became tidal
Brian F. Atwater +2 more
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An assessment of the megathrust earthquake potential of the Cascadia subduction zone
Canadian Journal of Earth Sciences, 1988The active tectonic setting of the southwest coast of Canada and the Pacific northwest coast of the United states is dominated by the Cascadia subduction zone. The zone can be divided into four segments where oceanic lithosphere is converging independently with the North American plate: the Winona and the Explorer segments in the north, the larger ...
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Great earthquakes of variable magnitude at the Cascadia subduction zone
Quaternary Research, 2006AbstractComparison of histories of great earthquakes and accompanying tsunamis at eight coastal sites suggests plate-boundary ruptures of varying length, implying great earthquakes of variable magnitude at the Cascadia subduction zone. Inference of rupture length relies on degree of overlap on radiocarbon age ranges for earthquakes and tsunamis, and ...
Alan R. Nelson +2 more
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Journal of Geophysical Research: Solid Earth, 1992
The Cascadia subduction zone is a young subduction zone with associated volcanic activity but with no history of large thrust earthquakes associated with it as is characteristic of other subduction zones. This has led to questions about the potential for great earthquakes associated with this subduction.
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The Cascadia subduction zone is a young subduction zone with associated volcanic activity but with no history of large thrust earthquakes associated with it as is characteristic of other subduction zones. This has led to questions about the potential for great earthquakes associated with this subduction.
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