Geologic Background:
Azufral stratovolcano in southern Colombia, also
known as Azufral de Tuquerres, is truncated by a 2.5 x 3
km caldera containing a Holocene lava dome complex. A
crescent-shaped lake, Laguna Verde, occupies the NW side
of the caldera. Nearly a dozen lava domes are present,
the latest of which were formed about 3,600 years ago and
have active fumaroles. Azufral rocks are more silicic
than those of nearby Colombian volcanoes; an apron of
rhyodacitic pyroclastic-flow deposits rings the volcano.
The last known eruption of Azufral volcano took place
about 1,000 years ago.
Historic Activity:
Recent Activity:
Data Sources:
- Global Volcanism Network (V. 15, No. 8).
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