Ways of generating pyroclastic flows include ________________.

Question

Quizplus · Accepted Answer

All of the listed events can generate pyroclastic flows. Dome collapse (A) can occur when lava accumulates and piles up, causing parts of the dome to break off and collapse. Overspilling of the crater rim (B) can occur when the pressure of the magma causes the crater to overflow, sending a massive avalanche of ash and rock down the volcano. A directed blast (C) occurs when the pressure of the magma is released in a single, powerful explosion, sending ash and rock hurtling down the slopes of the volcano. Eruption column collapse (D) is when the column of ash and gas, which shoots high into the air during an eruption, falls back down to earth in a devastating pyroclastic flow.

Ways of Generating Pyroclastic Flows Include ________________