Mount Jormajan, a large lava dome on the east side of Bulusan volcano, was constructed at the W side of the 11-km-wide Irosin Caldera. This view from the south shows the flat caldera floor in the foreground, with the western caldera wall visible to the far left.

Photo by Chris Newhall (U.S. Geological Survey).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Keywords: lava dome | caldera

Bulusan