Volcanologists and geologists monitor volcanoes to determine whether or not an eruption is imminent.Which of the following is not a typically used monitoring technique?

Question

Quizplus · Accepted Answer

Changes in velocity of streams flowing from around the volcano are not typically used as a monitoring technique to determine if an eruption is imminent. The other options listed (earthquake activity, changes in the shape of the volcano, and increases in gas and steam emissions) are commonly used indicators that a volcano may be preparing to erupt.

Volcanologists and Geologists Monitor Volcanoes to Determine Whether or Not