Answer:
Southern California is prone to mass wasting because of tectonic activity and topography. Other regions in the world that suffer from such hazards are the western coast of South America, Central America, northern and northeastern India, and many others.
Explanation:
The southern part of California is one of the tectonically most active places on Earth. There is a transform plate boundary that passes through this area, with two plates sliding past each other and creating constant tension and pressure on the crust, thus there are earthquakes very often. The topography is dominated by hills and mountains, thus the earthquakes manage to disturb the crust easily and the surface to slide downwards.
There are many regions in the world that suffer from mass wasting, with the main reasons being tectonic activity and very high amounts of rainfall over a short period, and it is always in places where hills and mountains are dominating the landscape. Such regions are the western coastal part of South America, and Central America, with the tectonic activity being the main reason for it. In northern and northeastern India the main reasons are the monsoons, as they bring in the largest amount of rainfall in the world.
