In this July 22, 1980 file photo, Mount St. Helens erupts in Washington. (AP Photo, file)

Photos: Mount St. Helens then and now

Mount St. Helens continues to captivate since its 1980 eruption. May 18, 2015, marks the 35th anniversary of the catastrophic event.

Volunteers help remove debris of a building that collapsed at Durbar Square, after an earthquake in Kathmandu, Nepal, Saturday, April 25, 2015. A strong magnitude-7.9 earthquake shook Nepal's capital and the densely populated Kathmandu Valley before noon Saturday, causing extensive damage with toppled walls and collapsed buildings, officials said. (AP Photo/ Niranjan Shrestha)

Photos: Earthquake strikes Nepal

An earthquake with a 7.8 preliminary magnitude struck Nepal on Saturday, April 25, 2015, resulting in mass casualties.