Question: What provinces comprise the area where the 1944 San Juan earthquake took place?

Context paragraphs:
1913 Asmara earthquake: The 1913 Asmara earthquake took place outside Asmara, Eritrea on 27 February.  The data as to the magnitude of the earthquake is imprecise due to the frequency and magnitude of aftershocks, but a maximum felt intensity of VI (Strong) on the Mercalli intensity scale was recorded at Asmara.  The "felt" area of the earthquake extended into Northern Ethiopia as well as Kassala in Sudan.  The earthquake caused significant damage in Asmara (VI), Keren (IV), Massawa (V) and Adi Ugri (V).

Coast Guard Station San Juan: United States Coast Guard Station San Juan is a United States Coast Guard station established in 1993 and located in La Puntilla sector of historic Old San Juan, Puerto Rico.  Is one of two USCG Search and Rescue station in the Caribbean.  Duties at Coast Guard Station San Juan also include law enforcement, Federal On Scene Coordinator (FOSC), Area Maritime Security Coordinator (AMSC) and the Electronic Systems Support Detachment San Juan, Puerto Rico (ESDD SAN JUAN).  Coast Guard Station San Juan also conducts escorts of cruise ships and some Navy assets entering and departing San Juan Bay.

1982 El Salvador earthquake: 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.

1952 San Juan earthquake: The 1952 San Juan earthquake took place on 11 June at 00:31:37 UTC in the province of San Juan, Argentina.  It measured 6.8 on the moment magnitude scale with a depth of 30 km .  The earthquake was felt in San Juan with a maximum of VIII ("Severe") on the Mercalli intensity scale.  It caused damage in some locations in the south and west of the province, and a small number of casualties.

Cuyo (Argentina): Cuyo is the name given to the wine-producing, mountainous area of central-west Argentina.  Historically it comprised the provinces of San Juan, San Luis and Mendoza and was influenced by Chile.  The modern term New Cuyo indicates both Cuyo proper and the province of La Rioja.  New Cuyo is a political and economic macroregion, but culturally La Rioja is part of the North-West rather than of Cuyo.

1944 San Juan earthquake: The 1944 San Juan earthquake took place in the province of San Juan, in the center-west area of Argentina, a region highly prone to seismic events.  This moderate to strong earthquake (estimated moment magnitudes range from 6.7 to 7.8) destroyed a large part of San Juan, the provincial capital, and killed 10,000 of its inhabitants, 10% of its population at the time.  One third of the province population became homeless.  It is acknowledged as the worst natural disaster in Argentine history.

2003 Alabama earthquake: The 2003 Alabama earthquake took place on April 29 at 3:59 A.M. Central Daylight Time (local time when the event occurred) eight miles (13 km) east-northeast of Fort Payne, Alabama.  The number of people who felt this quake was exceptionally high as the earthquake could be felt in 11 states across the East Coast and as far north as southern Indiana.  The earthquake was strongly felt throughout metropolitan Atlanta.  The Georgia Building Authority was called out to inspect the historic Georgia State Capitol in downtown Atlanta and other state-owned buildings, but found no problems.  However, this is not out of the ordinary as earthquakes east of the Rocky Mountains can be felt several times the area felt on West Coast earthquakes.  The earthquake was given a magnitude 4.6 on the moment magnitude scale by the USGS (other sources reported as high a magnitude as 4.9) and reports of the duration of the shaking range from 10 seconds to as long as 45 seconds.  It is tied with a 1973 earthquake near Knoxville, Tennessee as the strongest earthquake ever to occur in the Eastern Tennessee Seismic Zone, which is the second most active seismic zone east of the Rocky Mountains, with the New Madrid Seismic Zone the most active.

San Juan volcanic field: The San Juan volcanic field is part of the San Juan Mountains in southwestern Colorado.  It consist mainly of volcanic rocks that form the largest remnant of a major composite volcanic field that covered most of the southern Rocky Mountains in the Middle Tertiary geologic time.  Within the region lie an abundance of caldera volcanoes, which comprise the San Juan Volcanic Fields.  There are approximately 15 calderas known in the San Juan Volcanic Fields; however, it is possible that there are 2, or even 3 more in the region.

1977 San Juan earthquake: The 1977 San Juan earthquake, also known as Caucete earthquake, took place in the province of San Juan, Argentina, on 23 November at 09:26:23 AM.  It measured 7.4 on the surface wave magnitude scale, and had a maximum perceived intensity of IX ("Violent") on the Mercalli intensity scale.

1894 San Juan earthquake: The 1894 San Juan earthquake took place in the province of San Juan, Argentina, on 27 October 1894, at about 07:30 PM.  It was the most powerful earthquake recorded in Argentina, with magnitude 7.5 on the surface wave magnitude.  Its epicenter was located to the northwest of San Juan, approximately at , and at a depth of 30 km.

Supporting paragraphs: 1944 San Juan earthquake Cuyo (Argentina)
Answer: San Juan, San Luis and Mendoza