San Diego volcano consists of a lake filled caldera (Laguna San Diego) and a stratovolcano Morro de San Diego constructed at the NE margin of the caldera. It is currently not known whether this volcanic system is still to be considered active, and should be included in the GVP's global database of active volcanoes.
Note: A volcano with the same name exists in El Salvador.
Intraplate volcanism: 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.
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