Whidbey Island resident Susan Kieffer, a physicist, geologist and author of “The Dynamics of Disaster,” speaks about disaster science in a free program, 2-3:30 p.m. Sunday at the Everett Public Library, 2702 Hoyt Ave.

Natural disasters like volcanoes and tsunamis don’t have to kill large numbers of people and destroy huge amounts of property, says Kieffer, a MacArthur “Genius Grant” fellow. She will focus on landslides, tsunamis and the 1980 eruption of Mount St. Helens. As the ability to forecast such events grows, Kieffer would like to see a public policy response — and she has ideas of how that might happen.

More info: 425-257-7640

Listen: Utsalady Bay history celebrated

People who lived near Utsalady Bay on Camano Island in the 1920s and ’30s will share their memories, provide facts and answer questions about living on Camano Island and attending Utsalady School during that era, 7 p.m. April 11 at the historic Utsalady Ladies Aid building, 78 Utsalady Road.

Oral history presenters include Alex Ekle, Betty Garrison, Evelyn Moshier, Marian Turner and Melvin Olsen. Dessert will be served.

Splash: No fooling at April Pools DayThe Mountlake Terrace Recreation Pavilion pool holds its annual water safety event, April Pools Day, from 9:15 a.m. to noon April 12. The pool is at 5303 228th St. SW.

The free, family event features an hour of free swimming time, 11 a.m.-noon, Swedish/Edmonds first aid kits and hand sanitizer, a life jacket drawing, water safety tips and more.

More info: www.mltrec.com, 425-776-9173

Plant: Trees rise in Arlington on Arbor Day

Arlington celebrates Arbor Day on April 12 at Country Charm Park and Conservation Area, 604 E. Gilman St.

Discover what birds make the riparian area of the Stillaguamish River home during a bird walk at 9 a.m. There will be information and nature activity booths at 10 a.m., and the state Department of Natural Resources will present Arlington with the Tree City award for 2013. The event also includes planting a memorial tree for the victims of the Oso landslide.

All tools, gloves, water and snacks are provided.

More info: 360-403-3448

Restore: Help improve Marysville creek

A work party in honor of Earth Day will have volunteers plant trees and shrubs next to Allen Creek, 10 a.m.-2 p.m. April 12 at the Wilcox Farm, 9311 67th Ave. NE, Marysville. The event is sponsored by the Allen/Quilceda Action Team. Tools, water and snacks provided, and the first 200 kids and adults to plant trees will get T-shirts.

More info: 425-316-8592

Hunt: Eggs by night for teens in Mill Creek

A free Flashlight Egg Hunt for teens in sixth through 12th grades is set for 7-8 p.m. April 11 in the gym at Heatherwood Middle School, 1419 Trillium Blvd., Mill Creek. Participants must bring a parent-signed waiver. Waivers are available ahead of the event at City Hall and online at www.cityofmillcreek.com. Forms also will be available at the event. Teens should bring a flashlight and a bag to hold candy.

More info: Kristen at 425-921-5779