A triggered yet concurrent multi-fault rupture at the Mendocino Triple Junction challenges the definition of an earthquake

William L Yeck1, David R Shelly1, Kathryn Materna2, Dara E Goldberg1 and Paul S Earle1, (1)USGS National Earthquake Information Center, Golden, United States, (2)USGS Earthquake Science Center, Moffett Field, United States