No existen noticias en esta lista.
El Aguajito volcano
Typical eruption style
Erupciones del volcán El Aguajito
: more than 10,000 years ago
No hay terremotos recientes
|Fecha / Hora||Revista / Profundidad||Distancia||Ubicación|
El Aguajito volcano (also known as Santa Ana caldera) is a large 10 km wide caldera at the coast of the Gulf of California, northwest of the older La Reforma caldera. The caldera formed during massive eruptions about 760,000 years ago in what would be called a super-volcano eruption, and its rim is no longer exposed. A series of lava domes that formed about 500,000 years ago, occupy its northern edge. There is an active geothermal system with hot springs along the southern side of the caldera.
The rim of the approximately 10-km-wide resurgent caldera is not exposed, but an arcuate line of andesitic-to-rhyolitic lava domes covers its northern margin. Formation of the rhyolitic caldera was associated with the eruption of ignimbrites, K-Ar dated at 0.76 +/- 0.06 million years ago (Ma), most of which were deposited in the Gulf of California.
Rhyolitic lava domes on the northern margin have been dated at 0.5 +/- 0.04 Ma; dacitic lava domes on the southern side of the caldera appear to be older. The regional NNE-SSW-trending Cimarron fault cuts across the center of the caldera. Hot springs are located along the southern caldera margin, and active seismicity was noted during geothermal exploration. (source: Smithsonian / GVP)
See also: Sentinel hub
| Landsat 8
Más en VolcanoDiscovery
Volcano Eruption Special
: 11-16 Feb 2019: short-notice special tour to see the ongoing eruption of Karangetang volcano in northern Indonesia. Starting and ending in Manado. Small group 2-6 people, experienced volcano expedition leader from our team (Andi).
Land of Theseus
: The Saronic Gulf opposite Athens is one of the most beautiful and interesting areas of Greece, full of beautiful landscapes, small towns, islands, archeological remains and one of Europe's least known active volcanic areas. Join us on a relaxing tour to discover this fascinating area!
The term for all fine-grained volcanic products fragmented during explosive eruptions.