what type of damage do volcanoes cause
Mudflows (lahars) can result from the rapid melting of ice at the top of a volcano and this can cause serious damage and death to places down slope. Volcanos can trigger shallow earthquakes that can result in damage to infrastructure of course.
Volcanic eruptions and environment. Figure 1: layout of a volcano. Volcanoes that have not erupted for some time are dormant, and volcanoes that have not erupted even in the distant past are called extinct. Volcanic activity and volcanic eruption is usually triggered by alterations of tectonic plates, resulting in landslides or earthquakes.