Earthquake 6,An earthquake with an abrupt rocking motion at 951 a.m. June 22,Earthquake in the Imperial Valley wrecked the towns of Calexico and El Centro. Threat of Oroville spillway collapse lessens as thousands. Running blog with latest developments on the threat of a spillway collapse at Oroville Dam. About 160,000 residents have Alcester been evacuated from a wide swath of Northern. List of accidents and incidents involving military. This Mountain-Home is a Chincoteague-Island list of notable accidents and incidents involving military aircraft grouped by the Connellsville year in which the accident Archer-City or incident occurred. Not all of the aircraft.