Alternate Views: Get Data, FAQ, ISO Rubric, CSW, HTML, Components, XML Mount Saint Helens, USA Images An earthquake occurred at 15 32 UT, only seconds before the explosion that began the eruption of Mount St. Helens volcano. This eruption and blast blew off the top of the volcano, reducing its elevation by 396 meters, killed 31 people and caused an estimated property damage of between $0.5 billion and $2 billion. About 53 earthquakes having magnitude larger than 4.5 were located near Mount St. Helens before the main event and eruption. No earthquakes having magnitudes higher than 4.5 were located following the eruption. Get the Data Access Format(s) Distributor(s) / Contact Info Instructions / Constraints download Event Description Natural hazard event (tsunami, earthquake, volcanic eruption or other geological hazard) description, image thumbnails, map, links to metadata and details from the NGDC Hazards databases search Natural Hazards Image Database Collection of damage and geological images resulting from natural hazards, specifically tsunamis, earthquakes, and volcanoes. download Keyhole Markup Language (KML) Event epicenter and image locations TIFF Format version: (version is unknown) JPEG Format version: (version is unknown) Hazards Data DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (303) 497-3707 7:30 - 5:00 Mountain Legal Constraints Access otherRestrictions Use Limitation otherRestrictions Other Please cite the original source when using these data. Access Constraints: None; Use Constraints: None; Disclaimer - While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.