Which of the following is used to estimate a volcano's VEI?

Question

Quizplus · Accepted Answer

All of the above factors are used to estimate a volcano's VEI. The volume of material ejected from a volcano provides an idea of the magnitude of the eruption, whereas the height at which the volcanic cloud reaches is an indication of the eruptive power of the volcano. The duration of the eruption and the viscosity of the lava are also used to determine the VEI because they provide information about the intensity and the style of the eruption. Therefore, all of these factors are taken into consideration while estimating a volcano's VEI.

Which of the Following Is Used to Estimate a Volcano's