Not in our human observation, because Mars is a
"dead" planet. These volcanoes are possibly 1-2
billion years old, and the most recent lava flows
are between 20 and 200 Million years old. So, it
clearly erupted - but quite long ago.
smaller than Earth, and has therefore cooled more
rapidly. It also had a smaller volume of
radioactive material in its crust than Earth
(because of its small size) and thus has used up
this heat source.
At present we believe that
the crust of Mars is static - because the planet
is cool; it does not have plate tectonics like
Earth, with active plates moving over the