What is paleoseismology? Explain the concept of a seismic gap. How are tiltmeters and gas-monitoring wells used for earthquake monitoring? What is a volcano? Explain the tectonic settings of volcanic...

What is paleoseismology? Explain the concept of a seismic gap. How are tiltmeters and gas-monitoring wells used for earthquake monitoring?

What is a volcano? Explain the tectonic settings of volcanic activity with the help of a suitable diagram. diagram. Where do you expect to find volcanic activity in the world? Why?