Learn about earthquakes and tsunamis in the Cascadia Subduction Zone from Dr. Jay Patton. Friends of the Arcata Marsh is sponsoring this free public lecture starting at 7:30 p.m. on Friday, July 15 at the Arcata Marsh Interpretive Center. Jay is a lecturer and adjunct professor in the Humboldt State Department of Geology and also in the Science Department at College of the Redwoods. His thesis investigated ancient subsidence and tsunamis in Hookton Slough, Humboldt Bay. Jay’s website at www.earthjay.com includes earthquake reports and other information about seismic events. For more information, or to guarantee a seat, call (707) 826-2359.