The earthquake prompted a tsunami warning for Alaska and British Columbia, as well as a tsunami watch on the U.S. West Coast and Hawaii.[2][4] The watch for Hawaii was later cancelled by the Pacific Tsunami Warning Center.[5] Evacuations have been issued by local authorities in Kodiak and coastal areas in British Columbia, with shelters being opened for evacuees.[6][7][8] In the San Francisco Bay area, residents within three blocks of the Pacific Ocean coast and five blocks of the San Francisco Bay were warned by the city's Department of Emergency Management to be ready for evacuation.[4]