ASTORIA -- The Ring of Fire roughly traces the outline of the Pacific Ocean and is home to the most active string of volcanoes and earthquake faults in the world.

Some of the features of the Ring of Fire are obvious. Mt. Hood and the rest of the Cascade volcanoes, as well as other volcanic ranges such as the Andes of South America and the Aleutian islands - all are part of this geologically dynamic landscape. But the Ring of Fire doesn't stop at the ocean's edge; instead, there are whole chains of underwater volcanoes that are hidden from view.

Join the Columbia River Maritime Museum for its next Science on Tap, "The Hidden Ring of Fire: Exploring Undersea Volcanoes in the Western Pacific" on Thursday, March 6. Bill Chadwick, a research professor at the Oregon State University's Marine Science Center in Newport will share experiences deep in the western Pacific.

Guests will view images of strange, newly discovered species of marine life and watch amazing video footage of undersea volcanic eruptions.

Chadwick is a geologist who studies active volcanoes, both on land and underwater. He has worked in the Cascades, Hawaii, New Zealand and the Galapagos Islands, as well as on submarine volcanoes in the northeast and western Pacific.

Science on Tap, in partnership with Fort George Brewery, is a Columbia River Maritime Museum program introducing maritime science, history, and technology in an informal setting. This program is free and open to the public, and minors are allowed with adult. Doors open at 6 p.m., and the presentation begins at 7 p.m. at the Fort George Lovell Showroom. Food and beverages are available for purchase. Seating is limited. For more information, call 503-325-2323.

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