Why do landslides happen in California?

Landslides in California occur due to a combination of factors, including the state's diverse topography, heavy rainfall, and seismic activity. The steep slopes of California's mountains and canyons are susceptible to erosion, especially after periods of intense rainfall or following wildfires that destabilize the soil. Additionally, earthquakes can trigger landslides by shaking loose soil and rock. Climate change also plays a role by increasing the frequency of extreme weather events, further exacerbating the risk of landslides.