Volcanoes that erupt are not always full of lava.
* Active volcanoes are those that have erupted in recent history and are likely to erupt again. They might have lava chambers, but these chambers don't always remain completely filled.
* Eruptions deplete the lava chamber. When a volcano erupts, it releases a significant amount of lava, ash, and gases. This empties the magma chamber, at least partially.
* Magma chambers recharge. Over time, magma can rise from deeper within the Earth to replenish the chamber, making the volcano potentially ready for another eruption.
So, while a volcano might not be completely filled with lava immediately after an eruption, it can become filled again.
Here's what you need to consider:
* The size of the eruption: A massive eruption might drain the chamber significantly, while a smaller eruption might leave more lava behind.
* The volcano's plumbing system: The shape and size of the magma chamber and the connecting pathways influence how quickly the chamber refills.
* The tectonic activity: Active tectonic plates can push magma towards the surface, making a chamber more likely to refill faster.
In short, a volcano that has erupted may not be completely filled with lava, but it can certainly refill over time. This makes active volcanoes potentially dangerous, even after an eruption.
