California Plate Boundaries 12. The team found the lithosphere’s thickness differs markedly throughout, yielding new insights into how rifting shaped the southern California terrain. Earthquakes & Plate Boundaries 4. Alaska Earthquake 9. Los Angeles has lots of earthquakes because it is located near a transform boundary. Geologists at Brown University have produced the most detailed picture of southern California's lithosphere, which is crucial to understanding the geological forces that shaped the area. This animation depicts the evolution of the spreading ridge that marks the boundary between the Pacific and North American Tectonic Plates. Mendocino Triple Junction. Are You Prepared?

The San Andreas Fault is responsible for most of the movement in western California, causing a sliver of the state to slide past the rest of the continent. 3. Vertical Slice 10. Results are published in Science. California's sleeping giant, the San Andreas Fault, marks the slippery yet sticky boundary between two of Earth's tectonic plates.

The fault divides into three segments, each with different characteristics and a different degree of earthquake risk. It is responsible for the biggest earthquakes in California… California contains two different plate boundaries! The Pacific Plate slides north-northwestward past the North American Plate along the San Andreas Transform Plate Boundary. Atlantic Ocean II 8.

The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers (750 mi) through California. The Ring of Fire 5. Convergent Boundaries 6. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip (horizontal). Transform boundaries form when one tectonic plate grinds past another plate … Could It Happen Here?

3-D Look 11. The on-land part of this submarine spreading ridge extends into Baja California, Mexico and the Imperial Valley of California where it is transitioning from ridge-transform boundary to the continental boundary along the San Andreas fault zone. 14. Atlantic Ocean 7. 13. The Juan de Fuca plate is subducting under the North American plate at the northern part of California, so this is a convergent plate boundary.