Question: When was the last earthquake in the country where the Conchagua stratovolcano is located?

full_context: Document 1: List of earthquakes in El Salvador: 2001 El Salvador earthquake 200102130000 2001 - 02 - 13 13 ° 40 ′ N 88 ° 56 ′ W ﻿ / ﻿ 13.67 ° N 88.93 ° W ﻿ / 13.67; - 88.93 Cojutepeque 6.6 VI 10 km Intensity VI in San Salvador. 315
Document 2: 2001 Kunlun earthquake: The 2001 Kunlun earthquake also known as the 2001 Kokoxili earthquake, occurred on 14 November 2001 at 09:26 UTC (17:26 local time), with an epicenter near Kokoxili, close to the border between Qinghai and Xinjiang in a remote mountainous region. With a magnitude of 7.8 M it was the most powerful earthquake in China for 5 decades. No casualties were reported, presumably due to the very low population density and the lack of high-rise buildings. This earthquake was associated with the longest surface rupture ever recorded on land, ~450 km.
Document 3: Chato Volcano: Chato Volcano, sometimes called "Cerro Chato" (Spanish for, literally, "Flat Hill"), is an inactive volcano in north-western Costa Rica north-west of San José, in the province of Alajuela, canton of San Carlos, and district of La Fortuna. It is southeast of the nearby Arenal Volcano
Document 4: Guazapa (volcano): Guazapa is a stratovolcano in central El Salvador. Guazapa volcano an eroded basaltic stratovolcano 23 km NE of San Salvador city. It is not known whether the Pleistocene volcano is still active. It shows signs of intense erosion that have cut deep valleys into its flanks, suggesting a very long dormancy period, and there is no crater morphology left.
Document 5: Moyuta (volcano): Moyuta is a stratovolcano in southern Guatemala. It is located near the town of Moyuta in Santa Rosa Department, and is situated at the southern edge of the Jaltapagua fault. The volcano has an elevation of 1662 m and its summit is formed by three andesitic lava domes. The slopes of the volcano complex have numerous cinder cones. Small fumaroles can be seen on the northern and southern slopes, and hot springs are found at the north-eastern base of the volcano, as well as along rivers on south-eastern side. The volcano is covered with forest and coffee plantations.
Document 6: Conchagua (volcano): Conchagua (also known as Cochague) is a stratovolcano in southeastern El Salvador, overlooking the Gulf of Fonseca. Cerro del Ocote and Cerro de la Bandera are the two main summits, with Bandera appearing younger and more conical (see photo). There are active fumarolic areas on both peaks, but no confirmed historical eruptions. It is surrounded by forest called Bosque Conchagua.
Document 7: Cuscatlán Department: Cuscatlán is a department of El Salvador, located in the center of the country. With a surface area of , it is El Salvador's smallest department. It is inhabited by over 252,000 people. Cuscatlán or Cuzcatlán was the name the original inhabitants of the Western part of the country gave to most of the territory that is now El Salvador. In their language it means "land of precious jewels". It was created on 22 May 1835. Suchitoto was the first capital of the department but on 12 November 1861, Cojutepeque was made the capital. It is known in producing fruits, tobacco, sugar cane, and coffee among other items. The department is famous for its chorizos from the city of Cojutepeque.
Document 8: New Delhi: New Delhi lies on several fault lines and thus experiences frequent earthquakes, most of them of mild intensity. There has, however, been a spike in the number of earthquakes in the last six years, most notable being a 5.4 magnitude earthquake in 2015 with its epicentre in Nepal, a 4.7-magnitude earthquake on 25 November 2007, a 4.2-magnitude earthquake on 7 September 2011, a 5.2-magnitude earthquake on 5 March 2012, and a swarm of twelve earthquakes, including four of magnitudes 2.5, 2.8, 3.1, and 3.3, on 12 November 2013.
Document 9: San Vicente (volcano): San Vicente (also known as Chichontepec or Las Chiches) is a stratovolcano in central El Salvador. It is located next to the town of San Vicente (hence the name) and is the second highest volcano in El Salvador. In the indigenous language Nahuat, Chichontepec means "the mountain of the two breasts", because its double summit resembles a woman's bosom. The volcano has two craters, one located in each summit, although not exactly at the top. Dense vegetation covers both summits. Numerous hot springs and fumaroles are found on the northern and western flanks of the volcano. To the northeast, at 820 metres in a ravine of 180 metres longitude, there are fumaroles—fountains of clear and muddy water or small volcanoes of mud.
Document 10: 1941 Colima earthquake: The magnitude of this earthquake was put at M 7.7 or M 7.7. The intensities were X ("Extreme) in Colima, VIII ("Severe") in Manzanillo, and V ("Moderate") in Mexico City. Ninety people were reported dead. The cathedral of Colima was destroyed. Many houses and public buildings in Colima, including the Federal Palace (Palacio federal) and the Hidalgo Theater (Teatro Hidalgo), were damaged. Of the 8,000 houses in the city of Colima, 900 or 2000 collapsed, according to different sources.
Document 11: 2017 Puebla earthquake: The 2017 Central Mexico earthquake struck at 13: 14 CDT (18: 14 UTC) on 19 September 2017 with an estimated magnitude of M 7.1 and strong shaking for about 20 seconds. Its epicenter was about 55 km (34 mi) south of the city of Puebla. The earthquake caused damage in the Mexican states of Puebla and Morelos and in the Greater Mexico City area, including the collapse of more than 40 buildings. 370 people were killed by the earthquake and related building collapses, including 228 in Mexico City, and more than 6,000 were injured.
Document 12: Chinameca (volcano): Chinameca (also known as El Pacayal) is a stratovolcano in central-eastern El Salvador. It lies north of San Miguel volcano and rises over the town of Chinameca. The volcano is topped by a wide caldera known as Laguna Seca el Pacayal, and a satellite cone on the west side, Cerro el Limbo, rises higher than the caldera rim. Fumaroles can be found on the north side, and it has been the site of a geothermal exploration program.
Document 13: 2008 El Calvario earthquake: The 2008 El Calvario earthquake occurred in central Colombia on 24 May and measured 5.9 on the moment magnitude scale. The earthquake occurred at 2:20:43 p.m. (19:20:43 UTC) at the epicenter (El Calvario, Meta). The depth was 35 km; it was superficial according to an Ingeominas report. The epicenter was located 35 km from Villavicencio and 50 km from Bogotá. There were 11 confirmed fatalities and 4,181 injured, mostly in the towns of Puente Quetame, Fosca, Fomeque and Guayabetal in Cundinamarca, and in El Calvario, Meta.
Document 14: Cosigüina Volcano Natural Reserve: Cosigüina Volcano Natural Reserve is a nature reserve in Nicaragua. It is one of the 78 reserves that are under official protection in the country.
Document 15: Dragon Cone: Dragon Cone is a monogenetic cinder cone located in Wells Gray Provincial Park in east-central British Columbia. It is the source of a long lava flow, called Dragon's Tongue. This lava covered the floor of narrow Falls Creek Valley and terminated at the Clearwater River, damming it to a height of and raising the level of existing Clearwater Lake upstream. Geologists have recovered some peat buried by the lava and radiocarbon dating produced an age of 7560 years plus or minus 100 years. Flows from nearby Flourmill Cone, Kostal Cone and Spanish Lake Cones rest on glaciated bedrock without an intervening paleosol, suggesting an early Holocene age.
ground_truth: 2001 - 02 - 13
sub_queries: Conchagua >> country Answer: El Salvador
when was the last earthquake in El Salvador Answer: 2001 - 02 - 13