Pyroclastic flow
A pyroclastic flow (also known as a pyroclastic density current)is a common result of volcanic eruptions. The flows are currents of hot gas, or tephra, during an eruption that sometimes causes rock falls.
A pyroclastic flow is the biggest killer that comes from a volcano and the gas can suffocate its victims and burn them at the same time. Uf it goes over water it boils it and kills everything in it. They can reach up to 1000 degrees celcius and can make glass in your lungs which kills you. Also they travel extremely fast some reaching 800 mph and they are deadly
ADDED BY LARA XX