Aalto

Aalto, or Eastmarch Springs is a supervolcano, located on the eastern part of Skyrim. The volcano is currently active, so there is not an imminent risk of a super eruption. The nature of it's eruption is normally effusive, however it tends to erupt highly viscous lava, forming a lava dome. This kind of activity might lead to Peléean type eruptions. Having hot springs, the area is higly appreciated by living forms, including humans.

Morphology
The volcano consist in a large caldera, covered by several hot spring. Aalto tends to erupt always from the same place, and a lava dome keeps growing in the center of the caldera.