Debris flow damage (IMAGE) University of California - Riverside Caption House damaged by debris flows generated in Los Angeles County's Mullally Canyon in response to a rainstorm on February 6, 2010. Credit Susan Cannon/USGS Usage Restrictions None 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.