Along the northwestern coast of North America, the Cascadia subduction zone (CSZ) produces a range of slip behavior along the plate boundary megathrust zone, from great earthquakes to episodic slow slip and tremor downdip of the seismogenic zone (e.g., Ghosh et al., 2010, 2012; McCausland et al., 2010; Beroza and Ide, 2011; Wech and Creager, 2011; Ide, 2012). At the CSZ, the Juan de Fuca plate subducts beneath the North American plate at ∼2.5–4 cm/yr (Fig. 1) (e.g., McCaffrey et al., 2007).
Estuarine evidence for coseismic subsidence and tsunami...
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