Publication Date
2026
College
College of Natural Resources & Sciences
Department
Geology
Document Type
Poster
Description
Humboldt County is located above a major plate boundary called the Cascadia Subduction Zone. Every several hundred years, the plate interface ruptures, causing a magnitude 8-9 earthquake, and disrupts the seafloor and water column, resulting in tsunami waves that will surge onshore in low-lying coastal areas. This interactive poster visually explains how tsunamis form, tests participants' understanding about tsunamis, and presents up-to-date tsunami hazard maps in Humboldt County. We seek to debunk common myths and misconceptions, and educate and empower our community to prepare for a local tsunami event.
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