The Cascadia region off the Pacific Northwest is a subduction zone where the Juan de Fuca tectonic plate dives beneath the North American Plate.
high
temporal
Describes the tectonic setting and plate interaction that characterizes the Cascadia subduction zone.
The San Andreas fault zone in California is composed of strike-slip faults formed where the Pacific Plate grinds laterally along the edge of the North American Plate.
high
temporal
Defines the fault mechanics and plate boundary type of the San Andreas system.
Both the Cascadia subduction zone and the San Andreas fault zone extend for more than 1,000 kilometers along the Pacific coast and terminate in the region near the Mendocino Triple Junction.
high
temporal
Describes the length and geographic relationship of the two major Pacific-coast fault systems and their shared termination area.
Turbidites are layers of marine sand and silt produced by underwater landslides triggered by strong earthquakes, and their internal textures (for example, sand deposited above silt) and radiocarbon dating of calcium carbonate shells can be used as a millennial-scale paleoseismic record.
high
temporal
Explains how submarine sedimentary deposits record past seismic events and how those deposits are interpreted and dated.