Earthquakes are not easy to predict, but volcanic eruptions have more warning signals and instruments to measure those signals, therefore making them somewhat easier to forecast. The difficulty with predicting volcanic eruptions is the___.

A. Height of the volcanoes

B. Number of volcanoes

C. Shortage of geologists

D. Cost of monitoring

Question

Tony Griffith

Chemistry

12 March, 00:05

Earthquakes are not easy to predict, but volcanic eruptions have more warning signals and instruments to measure those signals, therefore making them somewhat easier to forecast. The difficulty with predicting volcanic eruptions is the___.

A. Height of the volcanoes

B. Number of volcanoes

C. Shortage of geologists

D. Cost of monitoring

+1

Answers (1)

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Walter Calderon · Answer 1

Earthquakes may take place every day near a volcano. But before an eruption, the number and size of earthquakes increases. This is the result of magma pushing upward into the magma chamber. This motion causes stresses on neighboring rock to build up. Eventually the ground shakes. A continuous string of earthquakes may indicate that a volcano is about to erupt. Scientists use seismographs to record the length and strength of each earthquake.