Last updated 2/1/2022 at 7:51am
Mount St. Helens program on tap
RITZVILLE — “Mount St. Helens-Then and Now” will be presented by geologist Sheila Alfsen of Dallas, Ore., who will detail the onset and May 18, 1980 eruptions sequence.
The lecture is set for 1 p.m., Saturday, May 21, at Zion Congregational Chruch, 301 W. Broadway Ave.
During the lecture, she’ll explain Mount St. Helens volcanic hazards with examples from other volcanoes and a comparison of their relative sizes during the program. In addition, the presentation will include the advances in volcanology made as a result of the...