| Coatepeque Caldera | |
|---|---|
.jpg) Satellite view of the Coatepeque Caldera | |
| Highest point | |
| Elevation | 746 m (2,448 ft)[1] |
| Coordinates | 13°52′N89°33′W / 13.87°N 89.55°W /13.87; -89.55 |
| Dimensions | |
| Length | 7 km (4.3 mi) |
| Width | 10 km (6.2 mi) |
| Naming | |
| Native name | Kuātepēk (Pipil) |
| English translation | "at the snake hill" |
| Geography | |
  Coatepeque Caldera | |
| Country | El Salvador |
| Department | Santa Ana |
| Municipality | Coatepeque |
| Geology | |
| Formed by | Volcanic eruption |
| Mountain type(s) | Caldera,stratovolcanoes[1] |
| Rock type(s) | Rhyolite,Dacite,Andesite/Basaltic andesite |
| Volcanic arc | Central America Volcanic Arc |
| Last eruption | 72,000 and 57,000 years ago |
| Lake Coatepeque | |
| Lago de Coatepeque (Spanish) | |
 | |
| Location | Coatepeque,Santa Ana |
| Coordinates | 13°51′53″N89°32′48″W / 13.864702°N 89.546800°W /13.864702; -89.546800 |
| Type | Caldera lake |
| Basin countries | El Salvador |
| Max. length | 7 km (4.3 mi)[2] |
| Max. width | 10 km (6.2 mi)[2] |
| Surface area | 10 mi2 (26 km2) |
| Average depth | 115 ft (35 m) |
| Max. depth | 115 m (377 ft) |
| Surface elevation | 745 m (2,444 ft) |
| Islands | Isla Teopán |
| References | [2] |
| Location | |
 Interactive map ofLake Coatepeque | |
Coatepeque Caldera (Nawat:kuātepēk, "at thesnake hill") is avolcaniccaldera inEl Salvador inCentral America. The caldera was formed during a series ofrhyolitic explosive eruptions from a group ofstratovolcanoes between about 72,000 and 57,000 years ago. Since then,basalticcinder cones andlava flows formed near the west edge of the caldera, and sixrhyodaciticlava domes have formed. The youngest dome, Cerro Pacho, formed after 8000 BC.
Lake Coatepeque (Lago de Coatepeque) is a largecrater lake in the east part of the Coatepeque Caldera. It is inCoatepeque municipality,Santa Ana,El Salvador. There arehot springs near the lake margins. At 26 square kilometres (10 sq mi), it is one of the largest lakes in El Salvador. In the lake is the island ofTeopan, which was aMayan site of some importance.
Lake Coatepeque is also known to change colors from blue to turquoise. According to authorities of the Ministry of Environment and Natural Resources of El Salvador, this is a cyclical phenomenon that occurs from time to time. The color change has happened in 1998, 2006, 2012, 2016, 2017, 2018, and 2019.[3]
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