A volcano has erupted. What dangers are the neighboring towns at risk of?

While active, a volcano can be a natural source of pollution. Volcanoes release ash, gas, and magma into the air and onto the ground. Earthquakes and tsunamis - Volcanoes and earthquakes share plates and because of this a volcano can set off an earthquake by creating movement in the plates. And a restless volcano endangers any nearby residents with clouds of ash, falling blocks of rock, pyroclastic flows or ash hurricanes, lava flows, and floods of debris or lahars.

Things catching on fire, buildings burning down, dangerous gasses, smoke.

Explanation:

This is what happens when a volcano erupts.