Why do scientists study earthquakes to predict a volcanic eruption? Earthquakes

ID: 803742 • Letter: W

Question

Why do scientists study earthquakes to predict a volcanic eruption?

Earthquakes shake magma loose causing it to erupt

Groundwater moves before an eruption, causing earthquakes

When magma moves it causes earthquakes

Big earthquakes are always caused by magma erupting

Why is an Ash Fall hazardous?

Ash can accumulate on buildings causing them to collapse

Ash can contaminate water supplies

Ash can destroy crops and make the ground unsuitable for planting

All of the above are hazards of ash falls

In St. Pierre, which of the hazards you listed caused the greatest amount of damage and cost the most lives?

tsunami

lava flow

pyroclastic blast

Flood

What were the first warning signs for the people of St. Pierre that there was an eruption iminent?

Lava and pyroclasts began to flow from the summit.

Smoke and steam began to puff from the summit.

An explosion was heard at the summit.

Ash fell over the town.

Earthquakes shake magma loose causing it to erupt

Groundwater moves before an eruption, causing earthquakes

When magma moves it causes earthquakes

Big earthquakes are always caused by magma erupting

Why do scientists study earthquakes to predict a volcanic eruption?

Answer: When magma moves it causes earthquakes

In the active volcani regions, earthquakes may be early warnings of volcanic eruptions.

This is due to rising the magma can make earthqukes.

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