Not really sure just need seem points aha
Answer:
Earthquakes are caused by a slippery slope. When the pressure at the edge exceeds the collision, there is an earthquake that pulls the energy from the tides that move the crust and cause the tremors we feel. In California there are two plates - the Pacific Plate and the North American Plate, which is the most earthquake prone are in north America.
For better explanation, I've added an image.
Explanation:
Urban Population Density, Climate Change, and Disasters The dense concentration of urban populations can increase susceptibility to the disasters that are likely to become more frequent and more intense as a result of climate change. Many aspects of urban areas are vulnerable to disasters and climate change.