Miravalles Volcano
Updated: May 29, 2024 08:45 GMT -
Stratovolcano 2028 m / 6,653 ft
Costa Rica, 10.75°N / -85.15°W
Current status: normal or dormant (1 out of 5)
Costa Rica, 10.75°N / -85.15°W
Current status: normal or dormant (1 out of 5)
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Miravalles volcano eruptions: 1946
Latest nearby earthquakes
| Time | Mag. / Depth | Distance / Location | |||
| May 27, 04:41 pm (Costa Rica) | 2.6 3 km |  Costa Rica: 10 km al Sureste de Bijagua, Upala. I FELT IT | Info | ||
| May 27, 12:46 pm (Costa Rica) | 2.5 166 km | 6 Km al suroeste de Cuatro Bocas, Costa Rica | Info | ||
| May 26, 08:59 pm (Costa Rica) | 2.5 5 km | Costa Rica: 8 km al Este de Tierras Morenas, Tilaran. | Info | ||
| Friday, May 24, 2024 GMT (1 quake) | |||||
| May 24, 10:50 am (Costa Rica) | 2.9 5 km | 5 km (3.1 mi) to the SW | Costa Rica: 5 km al Norte de Fortuna, Bagaces. I FELT IT | Info | |
| Wednesday, May 22, 2024 GMT (1 quake) | |||||
| May 22, 05:36 pm (Costa Rica) | 2.9 226 km | 26 km (16 mi) to the W | 15 Km al norte de Liberia, Costa Rica | Info | |
| Thursday, May 16, 2024 GMT (1 quake) | |||||
| May 15, 11:57 pm (Costa Rica) | 2.4 3 km | Costa Rica: 1 km al Norte de Fortuna, Bagaces. | Info | ||
Background
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
Latest satellite images
