California Geologic Regions and Hazards

Introduction Geologists have divided California into 11 diverse provinces. Each province has unique features based on geology.

Today we will learn about 4 provinces that make up the middle of the state. We will start on the coast and work our way east across the state. Let’s begin...

Coast Range

Coast Range Color in province Put color in legend Write province name in legend

Description A series of sedimentary mountain ranges that make up the western border of California.

The rocky coastline marks the western boundary of California.

What geologic hazards would you expect to find in this province?

Coast Range Hazards 1.Earthquakes 2. Landslides 3. Coastal Erosion4. Tsunamis

In 1906 a great earthquake struck the city of San Francisco. Specific Event: Earthquake

Landslide San Mateo County, 1997 Beginning a few days after the 1997 New Year's storm, the slump opened a large fissure on the uphill scarp and created a bulge at the downhill toe. Specific Event:

Coastal Erosion Remnants of Mirada Road, Half Moon Bay Example of Coastal Erosion Specific Event

Crescent City, CA Tsunami resulted from an Alaskan earthquake. Specific Event Tsunami: A rare but deadly risk to CA coastal cities.

Coast Range Add the symbols of the hazards to your map.