How do tensions occur in Destructive margins?

How do tensions occur in Constructive margins?

How do tensions occur in Conservative margins?

What si the first stage of a development of an Earthquake?

What is the second stage of an earthquake?

What is the third stage of an Earthquake?

What is the final stage of an earthquake?

Give two scales to measure Earthquakes.

What does the Richter scale measure?

What does the Mercalli scale measure?