Apoyo Volcano

Updated: 18. Mai 2024 21:39 GMT - refresh

Caldera 600 m / 1969 ft
Nicaragua, 11.92°N / -86.03°W
Aktueller Status: (wahrscheinlich) erloschen (0 von 5)

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Typische Aktivität: unspecified
Ausbrüche des Apoyo: None during the past 10,000 years
Less than few million years ago (Pleistocene)

Letzte Erdbeben in der Nähe

Uhrzeit	Mag. / Tiefe	Entfernung / Ort
11. Mai. 18:10 (Managua)	4.7 155 km	24 km westlich	5 km NNW of Diriamba, Nicaragua I FELT IT - 6 Berichte	Info
Mittwoch, 8. Mai 2024 GMT (1 Beben)
8. Mai. 07:20 (Managua)	1.9 6 km	22 km nordwestlich	2 Km al sur de Ticuantepe, Nicaragua	Info
Montag, 6. Mai 2024 GMT (1 Beben)
6. Mai. 16:45 (Managua)	2.1 8 km	18 km nordwestlich	7 Km al norte de Volcán Masaya, Nicaragua	Info

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Beschreibung

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