The tiny Juan de Fuca plate is largely responsible for the volcanoes that dot the Pacific Northwest of the United States. The plates make up Earth's outer shell, called the lithosphere.

Multiple notable earthquakes have struck the United States this year ... These plates, called tectonic plates, can push against each other. Earthquakes are most common along fault lines, which ...

To learn why, where, and how earthquakes happen, you need to familiarize your students with the interior of the Earth and a model called plate tectonics ... and the United States Geological ...

The Himalayan mountain range was formed after the Indian and Eurasian tectonic plates collided around 50 million years ago. How does their movement continue to impact the region?