Mudslides, also known as debris flows, are a serious problem in areas with specific geological and weather conditions. In California, steep hills, loose soil, and frequent wildfires make the risk of mudslides higher. Experts explain that heavy rainfall and the state’s young mountains lead to unstable slopes, while droughts make the soil harder, preventing it from absorbing water. This causes runoff, which loosens the earth. Additionally, wildfires destroy plants that help hold the soil together. Tragically, events like the 2018 Montecito disaster, which killed 23 people, show the deadly impact of mudslides.

To reduce the risk of mudslides, authorities take several measures to protect communities. Debris basins are built to catch sediment and direct water downstream. These basins need regular maintenance to stay clear. After the 2018 disaster, Santa Barbara County spent $20 million on infrastructure to improve safety. Experts also use advanced tools like lidar and GPS to monitor terrain and predict mudslide risks. Reforestation and soil stabilization efforts help reduce erosion, strengthening slopes and making them less likely to collapse. Hazard maps are regularly updated to keep communities informed and prepared.