Members of the 60th have participated in countless humanitarian airlift missions over the years. When earthquakes devastated Mexico City in 1985, a 60th Military Airlift Wing C-5 was one of MAC's first aircraft to deliver relief equipment. In December 1988 and early 1989, personnel assigned to the 60th Aerial Port Squadron helped load Soviet IL-62 aircraft with medical supplies and relief equipment for shipment to earthquake victims in Armenia. In 1989, the wing carried relief supplies to Charleston, South Carolina and the US Virgin Islands to assist victims of Hurricane Hugo. Later that year, crews also flew relief equipment and personnel to San Francisco's south bay area to assist victims of the 1989 Loma Prieta earthquake. The 60th played a key role in Operation FIERY VIGIL. During June and July 1991, repeated eruptions of Mount Pinatubo in the Philippines, buried Clark Air Base with tons of volcanic ash, thus forcing an emergency evacuation of US military dependents and non-essential military personnel.