Mount Vsevidof (/ˌvɪzəˈviːdɒf/ or /vəˈʃeɪvɨdɒf/)[3] is a stratovolcano in the U.S. state of Alaska. Its summit is the highest point on Umnak Island, one of the eastern Aleutian Islands. Its symmetrical cone rises abruptly from its surroundings. Its most recent eruption was caused by an earthquake on March 9, 1957. The mountain erupted on March 11, 1957, and the eruption ended the next day.[1]