San Antonio Polopo (Photo: Tom Pfeiffer)
More on VolcanoDiscovery:
Volcano Videos on YouTube
: Our YouTube channel: volcanic activity world-wide shown through videos taken during our volcano tours and expeditions complimented by some time-lapse videos from webcams.
: A third tectonic setting where volcanism occurs is believed to be the result of mantle plumes and not directly related to plate boundaries. So called hot spot volcanoes fall into this category.
: Lists and maps of earthquakes in the world in near real time. Country lists, earthquake archive, and I-felt-it reports.
Small spherical balls of volcanic ash that form from a wet nucleus falling through a volcanic ash cloud.