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Coatepeque volcano

Updated: Dec 6, 2022 08:43 GMT -
caldera 746 m / 2,447 ft
El Salvador, 13.87°N / -89.55°W
Current status: normal or dormant (1 out of 5)

Coatepeque volcano is a large 7 x 10 km wide caldera 50 km west of San Salvador city. The caldera is elongated in SE-NW direction, with walls rising up to 800 m above the floor in its southwestern part. An up to 120 m deep and 5 km diameter lake occupies the eastern part of the caldera.
Hot springs occur near the lake shores, but there are no certain historical eruptions from Coatepeque.

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Typical eruption style: explosive
Coatepeque volcano eruptions: unknown, less than 10,000 years ago

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Monday, December 5, 2022 GMT (1 quake)
Dec 5, 2022 11:55 am (GMT -6) (Dec 5, 2022 17:55 GMT)
2.3

10 km
15 km (9.3 mi)
22 km northwest of Santa Tecla, Departamento de La Libertad, El Salvador
Friday, December 2, 2022 GMT (1 quake)
Dec 1, 2022 9:44 pm (GMT -6) (Dec 2, 2022 03:44 GMT)
2.7

62 km
40 km (25 mi)
15 km southwest of Sonsonate, El Salvador
Wednesday, November 30, 2022 GMT (1 quake)
Nov 30, 2022 12:06 pm (GMT -6) (Nov 30, 2022 18:06 GMT)
2.2

7 km
20 km (12 mi)
Departamento de Sonsonate, 12 km east of Ahuachapan, El Salvador
Monday, November 28, 2022 GMT (1 quake)
Nov 28, 2022 11:45 am (GMT -6) (Nov 28, 2022 17:45 GMT)
1.6

14 km
28 km (17 mi)
19 Km Al Noroeste De Santa Ana, El Salvador
Saturday, November 26, 2022 GMT (1 quake)
Nov 25, 2022 6:18 pm (GMT -6) (Nov 26, 2022 00:18 GMT)
2.2

6 km
13 km (8.1 mi)
23 km northwest of Santa Tecla, Departamento de La Libertad, El Salvador

Background

The caldera formed by the collapse of several overlapping stratovolcanoes east of Santa Ana volcano, and part of Santa Ana itself, during major rhyolitic pumice eruptions between 72,000 and 51,000 years ago. Deposits from these eruptions form a large layer present in most of southwestern El Salvador and parts of Guatemala.
Post-caldera eruptions produced basaltic cinder cones and lava flows near the western margin of the caldera and the about 6 rhyodacitic lava domes along a NE-SW line near the caldera lake margins.
The highest of the domes forms the wooded island of Isla de Cabra, or Cerro Grande. The youngest dome, Cerro Pacho, has probably formed less than 10,000 years ago.
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from: Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8 | NASA FIRMS

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