Wikipedia sayings about two volcanoes are shown in the photos, above. when they erupt, which volcano is likely to be more violent and explosive?

1.Volcanic ash

during explosive volcanic eruptions when dissolved gases in magma expand and escape violently into the atmosphere. The force of the gases shatters the magma ash

2.Titan (moon)

Titan's volcanoes". New Scientist. Lovett, Richard A. (2010). "Saturn Moon Has Ice VolcanoAnd Maybe Life?". National Geographic. Archived from the original (moon)