Wiktionary
active volcano
n. (context geology English) A volcano that has erupted in the last 10,000 years, not necessarily venting lava or gases now.
Usage examples of "active volcano".
Its focus is Mount Shaitan, an active volcano, and its fae is so wild that few men dare to even approach it.
All over the Earth people imagined that an active volcano was an imprisoned giant or demon struggling to get out.
It was an active volcano, and blotted out much of anything beyond to the south.
Surely people who could hold the Dawn Sisters in the sky in a stationary position for who knows how many Turns ought to be wise enough to identify an active volcano.