Tag Archives: California

References: Earthquakes & Tsunami: Current Events & Local Hazards

This is a summary of my recent talk, with links to sources and more information. Geoscience Background Plate Tectonics The surface of the Earth is composed of tectonic plates. They move relative to each other at about the same rate … Continue reading

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Tsunami on the West Coast

The two main tectonic regions of the west coast of North America are the transverse fault zone area of California, and the subduction zone of the Pacific Northwest (Oregon, Washington, and British Columbia). The two zones have very different seismic … Continue reading

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Dual-Scale Weathering

The landscape of rounded boulders at Joshua Tree Park, California, are the legacy of weathered bedrock. As overlaying material is eroded away, the release in pressure leads to exfoliation — shedding the crust of weathered rock. On a much shorter … Continue reading

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