an active 'volcano' [=a volcano that could erupt at any time or that is erupting now]
a dormant 'volcano' [=a volcano that is not currently active]
an extinct 'volcano' [=a volcano that does not erupt anymore]
(..) Buzz Lightyear to the rescue! And we'll actually need the rocket. They're getting away! Come on, Bullseye! We need to get in the spaceship. The volcano is gonna erupt. Look! They're being attacked by a real dog! You can eat my poisonous scones! Mr. and Mrs. Potato Head are in trouble. (..)2010 Toy Story 3