Plate Movement: 200 Million Years Ago to Present Day | California Academy of Sciences

Witness how Earth’s forces have shaped the continents—from millions of years ago to present day. Today’s configuration of continents is dramatically different than it was in the past. See how plate tectonics built and fragmented supercontinents—land masses made of multiple continents merged together—over the past 200 million years. For more on earthquakes—why they happen, how they’ve shaped the Bay Area, and what you can do to prepare for future events—visit