Question: Buckner Building was slightly damaged by a 9.2 earthquake that occurred on which day ?
Context: The 1556 Shaanxi earthquake or Huaxian earthquake () or Jiajing earthquake () was a catastrophic earthquake and is also the deadliest earthquake on record, killing approximately 830,000 people.  It occurred on the morning of 23 January 1556 in Shaanxi, during the Ming Dynasty.  More than 97 counties in the provinces of Shaanxi, Shanxi, Henan, Gansu, Hebei, Shandong, Hubei, Hunan, Jiangsu and Anhui were affected.  Buildings were damaged slightly in the cities of Beijing, Chengdu and Shanghai.  An 840 km area was destroyed, and in some counties as much as 60% of the population was killed.  Most of the population in the area at the time lived in yaodongs, artificial caves in loess cliffs, many of which collapsed with catastrophic loss of life. The Buckner Building is an abandoned former U.S. military building in Whittier, Alaska.  Designed by Foss, Malcolm and Olsen architects, it was constructed by the military in 1953 as a combined mess hall, sleeping quarters, recreational, medical and administrative facility and used to be one of the largest buildings in Alaska, often being referred to as "the city under one roof".  The building was slightly damaged by the 9.2 1964 Alaska earthquake, though damage was minimized by its reinforced concrete construction. The 1982 El Salvador earthquake occurred on 19 June 1982 at 00:21 local time (06:21 UTC).  It was an M 7.2 earthquake, with epicenter being located in the Pacific Ocean about 60 km southeast of San Salvador, El Salvador.  8 people were reported dead, and 1630 houses were damaged.  The earthquake triggered many landslides.  The intensity in San Salvador reached MM VII.  The most affected cities are San Salvador, Ahuachapán, Concepción de Ataco, Comasagua, San Miguel, San Pedro Nonualco, and San Juan Tepezontes.  This earthquake could be felt in Guatemala, Honduras, Nicaragua, and Costa Rica, with intensities MM V in Guatemala City, Guatemala, MM IV in Tegucigalpa, Honduras, MM V in Managua, Nicaragua, and MM III in San Jose, Costa Rica.  Near the Salvadorian coast, the Cocos Plate is subducting beneath the Caribbean Plate at the Middle America Trench.  This earthquake was an intra-slab, normal-slip subduction earthquake in the subducting plate.  The subduction zone and a local system of faults along the volcanic chain are two major sources of the earthquakes in El Salvador.  The mechanism of this earthquake had many similarities with the El Salvador earthquake of 13 January 2001. The Trinitatiskirche (Trinity Church) was a church building dedicated to the Holy Trinity in the Johannstadt district of Dresden.  It was built from 1891 to 1893.  The bombing raids of February 1945 completely burned down its aisle, badly damaged the main walls and parish hall, slightly damaged the bell tower and completely destroyed the roof and interior.  The debris began to be removed in 1945 and the tower provisionally repaired in 1950.  The hall was rebuilt in the mid-1950s and plans in the 1960s to pull down the church ruins were stopped by the parish developing a project to build a room for church services and a conference centre, and so the church's ruins still remain. The Hibernia Bank, headquartered in San Francisco, California, was founded in April 1859 as the Hibernia Savings and Loan Society.  In 1892, the company built a Beaux-Arts headquarters at 1 Jones Street at the corner of McAllister and Market Streets, designed by Albert Pissis.  Slightly damaged in the 1906 earthquake and fire, it re-opened again just five weeks after the calamity; Pissis designed an addition to the building in 1908. The Bullenhuser Damm School is located at 92–94 Bullenhuser Damm, a street in the Rothenburgsort section of Hamburg, Germany.  During heavy air raids, many portions of Hamburg were destroyed, including the Rothenburgsort section, which was heavily damaged.  The school was only slightly damaged.  By 1943, the surrounding area was largely obliterated so the building was no longer needed as a school.  In October 1944, a subcamp of the Neuengamme concentration camp was established in the school to house prisoners used in clearing the rubble after air raids.  The Bullenhauser Damm School was evacuated on April 11, 1945.  Two SS men were left to guard the school: SS Unterscharführer Johann Frahm and SS Oberscharführer Ewald Jauch, and the janitor Wilhelm Wede. The September 2009 Sumatra earthquake (Indonesian: "Gempa bumi Sumatra 2009" ) occurred on September 30 off the coast of Sumatra, Indonesia with a moment magnitude of 7.6 at .  The epicenter was 45 km west-northwest of Padang, Sumatra, and 220 km southwest of Pekanbaru, Sumatra.  Government reports have to date confirmed 1,115 dead, 1,214 severely injured and 1,688 slightly injured.  The most deaths occurred in the areas of Padang Pariaman (675), Padang (313), Agam (80) and Pariaman (37).  In addition, around 135,000 houses were severely damaged, 65,000 houses were moderately damaged and 79,000 houses were slightly damaged.  An estimated 250,000 families (1,250,000 people) have been affected by the earthquake through the total or partial loss of their homes and livelihoods. This is a list of earthquakes in 1964.  Only magnitude 6.0 or greater earthquakes appear on the list.  Lower magnitude events are included if they have caused death, injury or damage.  Events which occurred in remote areas will be excluded from the list as they wouldn't have generated significant media interest.  All dates are listed according to UTC time.  Maximum intensities are indicated on the Mercalli intensity scale and are sourced from United States Geological Survey (USGS) ShakeMap data.  Alaska had the largest event of the year both in terms of magnitude and death toll.  In March a great magnitude 9.2 earthquake struck the southern part of the state.  This was the largest earthquake in United States' history and currently as of 2017 ranks as 3rd largest globally.  The quake and subsequent tsunami resulted in 139 deaths in total.  In spite of such a large event there were only 11 other magnitude 7.0 + events which is below normal.  Japan, Taiwan and Mexico had earthquakes which resulted in a number of deaths.  Indonesia and Papua New Guinea experienced high activity this year with a cluster of magnitude 6.0 + events hitting throughout the year. The 1964 Alaskan earthquake, also known as the Great Alaskan earthquake and Good Friday earthquake, occurred at 5:36 PM AST on Good Friday, March 27.  Across south-central Alaska, ground fissures, collapsing structures, and tsunamis resulting from the earthquake caused about 139 deaths. Camp Sullivan was a United States Army camp located in Whittier, Alaska from 1943 to 1960.  Constructed out of a need to supply the region with military support during World War II, the area became important again during the Cold War after the Army decided to build the 14-story Hodge Building (now Begich Towers) completed in 1957 contained 150 two and three bedroom apartments plus bachelor efficiency units.  Dependent families and Civil Service employees were moved into this efficient high rise.  The new Whittier School was connected by a tunnel at the base of the west tower so students could go to school in short sleeves on the very worst weather days.  The building, originally was named in honor of Colonel Walter William Hodge Civil.  Engineer.  the CO of 93rd Engineer Regiment on the Alcan Highway.  The other structure, the Buckner Building, had been completed in 1953, and was called the "city under one roof".  Both buildings were at one time the largest buildings in Alaska.  The Begich Building is now a condominium.  Together with the 2-story Whittier Manor, Begich Building houses nearly all of Whittier's residents.  The port remained an active Army facility until 1960.
Answer: on Good Friday, March 27