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The conditions do not exist in the town itself, but off the coast of Oregon. About 85 miles off the coast of Oregon is a boundary between two tectonic plates. Here, the small Juan de Fuca Plate is colliding with and sliding under the North American Plate. These plates periodically release energy in the form of earthquakes. In some cases, these earthquakes may be accompanied by vertical movement of the ocean floor, which can displace ocean water and trigger tsunamis.

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Q: What geologic conditions exist in small town on the coast of Oregon that might cause a tsunami?
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