Which of the following factors is not related to a lahar?

Question

Quizplus · Accepted Answer

Lahars are volcanic mudflows or debris flows that are primarily related to volcanic activities and their effects, such as snowmelt due to volcanic heat, explosions that deposit loose ash and lapilli, and the destruction of vegetation by volcanic action. Tectonic fault movement, however, is related to the movement of the Earth's plates and not directly related to the formation of lahars.

Which of the Following Factors Is Not Related to a Lahar