Volunteers unload donated supplies during heavy rains in Darrington, Wash., Friday. One week after a massive mudslide hit nearby Oso, crews are working to find and identify victims. Data about landslides' annual effects are decades old, geologists say. David Ryder/Getty Images hide caption

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A woman comforts a pregnant relative suffering labor pains at a makeshift birthing clinic in the typhoon-battered city of Tacloban, Philippines, on Monday. Erik de Castro/Reuters/Landov hide caption

itoggle caption Erik de Castro/Reuters/Landov

A Thai medic checks bodies for forensic identity in Phang Nga province in southern of Thailand on Jan. 11, 2005. Thousands of people were killed in Thailand after a massive tsunami struck on Dec. 26, 2004. Pornchai Kittiwongsakul/AFP/Getty Images hide caption

itoggle caption Pornchai Kittiwongsakul/AFP/Getty Images