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Apoyo volcan

Mise à jour: 3 oct.. 2022 00:48 GMT -
Caldera 600 m / 1969 ft
Nicaragua, 11.92°N / -86.03°W
Condition actuelle: (probablement) éteint (0 sur 5)

Montrer carte interactive
Style éruptif tipique: unspecified
Eruptions du volcan Apoyo: None during the past 10,000 years
Less than few million years ago (Pleistocene)

Derniers séismes proches

HeureMag. / ProfondeurDistance/Lieu
dimanche, 2 octobre 2022 GMT (1 séisme)
2 oct. 2022 09:52 (GMT -6) (2 oct.. 2022 15:52 GMT)
2.2

10 km
55 km (34 mi)
23 km au sud-ouest de Juigalpa, Departamento de Chontales, Nicaragua
samedi, 1 octobre 2022 GMT (2 séismes)
1 oct. 2022 09:38 (GMT -6) (1 oct.. 2022 15:38 GMT)
2.6

159 km
13 km (8.1 mi)
19 km au sud-ouest de Granada, Nicaragua
30 sept. 2022 19:28 (GMT -6) (1 oct.. 2022 01:28 GMT)
2.4

73 km
80 km (50 mi)
37 km au sud de Juigalpa, Departamento de Chontales, Nicaragua

Introduction

The scenic 7-km-wide, lake-filled Apoyo caldera is a large silicic volcanic center immediately SE of Masaya caldera. The surface of Laguna de Apoyo lies only 78 m above sea level; the steep caldera walls rise about 100 m to the eastern rim and up to 500 m to the western rim. An early shield volcano constructed of basaltic-to-andesitic lava flows and small rhyodacitic lava domes collapsed following two major dacitic explosive eruptions. The caldera-forming eruptions have been radiocarbon dated between about 21,000-25,000 years before present. Post-caldera ring-fracture eruptions of uncertain age produced lava flows below the scalloped caldera rim. The slightly arcuate, N-S-trending La Joya fracture system that cuts the eastern flank of the caldera only 2 km east of the caldera rim is a younger regional fissure system structurally unrelated to Apoyo caldera.
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Source: Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8 | NASA FIRMS
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