Miravalles vulcano
Aggiornato: 5 feb. 2023 08:38 GMT -
Stratovolcano 2028 m / 6,653 ft
Costa Rica, 10.75°N / -85.15°W
Stato attuale: normal or dormant (1 di 5)
Costa Rica, 10.75°N / -85.15°W
Stato attuale: normal or dormant (1 di 5)
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Eruzioni del vulcano Miravalles: 1946
Latest nearby earthquakes
| Data / ora | Mag. / Prof. | Distanza/Ubicazione | ||
| sabato, 4 febbraio 2023 GMT (4 sismi) | ||||
| 3 feb 2023 20:22 (GMT -6) (4 feb 2023 02:22 GMT) | 3.7 135 km | 12 km (7.5 mi) Provincia de Alajuela, 44 km a est da Liberia, Costa Rica | ||
| 3 feb 2023 18:43 (GMT -6) (4 feb 2023 00:43 GMT) | 3.7 221 km | 28 km (17 mi) 20 km a est da San Jose, Upala, Provincia de Alajuela, Costa Rica | ||
| 3 feb 2023 20:22 (GMT -6) (4 feb 2023 02:22 GMT) | 3.7 135 km | 12 km (7.5 mi) Provincia de Alajuela, 44 km a est da Liberia, Costa Rica | ||
| 3 feb 2023 18:43 (GMT -6) (4 feb 2023 00:43 GMT) | 3.7 221 km | 28 km (17 mi) 20 km a est da San Jose, Upala, Provincia de Alajuela, Costa Rica | ||
Sfondo
Miravalles is a 2028-m-high andesitic stratovolcano that is one of five post-caldera cones along a NE-trending line within the broad 15 x 20 km Guayabo (Miravalles) caldera. The caldera was formed during several major explosive eruptions that produced voluminous dacitic-rhyolitic pyroclastic flows between about 1.5 and 0.6 million years ago. Growth of post-caldera volcanoes in the eastern part of the caldera that overtopped much of the eastern and southern caldera rims was interrupted by edifice collapse that produced a major debris avalanche to the SW. Morphologically youthful lava flows cover the western and SW flanks of the post-caldera Miravalles complex, which rises above the town of Guayabo on the flat western caldera floor. The only reported historical eruptive activity was a small steam explosion on the SW flank in 1946. High heat flow remains, and Miravalles is the site of the largest developed geothermal field in Costa Rica.---
Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8 | NASA FIRMS
