Oso Landslide (IMAGE) Geological Society of America Caption Oso Landslide, 31 Mar. 2014; credit Mark Reid, USGS. Public domain, https://www.usgs.gov/media/images/oso-washington-landslide. Credit Mark Reid, USGS Usage Restrictions Mark Reid, USGS License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.