BackgroundThe main edifice of Imbabura, Taita Imbabura ("Father Imbabura") forms the summit, with Huarmi Imbabura ("Imbabura's Son") forming a lateral lava-dome complex on the SW flank.
Imbabura was built in several stages:
The Imbabura I edifice constructed in the Pleistocene and was a large andesitic stratovolcano. It collapsed earlier than about 43,000 years ago after a major eruption, and produced a debris avalanche that traveled 16 km to the north.
A new stratovolcano, Imbabura II, was built after the collapse, which is probably still active.
Imbabura II typically built large dacitic lava domes, which subsequently collapsed. A major eruption about 25,000 years ago produced a debris avalanche, as well as a possible lateral blast. After this event, the present-day Huarmi Imbabura lava dome.
See also: Sentinel hub | Landsat 8