Earthquakes happen when rock beneath the earth suddenly moves. Stresses in the earth make blocks of rock break and move along a fault line, which is a crack in the earth. The rocks may move, slip downward, upward or side... More » Science Earth Science Earthquakes

Earthquakes are caused by sudden movement in opposing tectonic plates in the earth. As plates move against each other, sometimes the rocky edges catch against one another. The rest of the plate remains in motion, putting... More »

The earthquake in Haiti was the result of sliding plates between North America and the Caribbean. The plates are slabs that cover the Earth and resemble a giant jigsaw puzzle. The plates are constantly creeping past each... More »

Most earthquakes happen along the boundaries of the tectonic plates that make up the Earth's crust, though earthquakes can happen anywhere on the planet. Earthquakes are also common along faults, which are deep fissures ... More »

Earthquakes are the result of two of the Earth's crustal plates slipping past each other, otherwise known as plate tectonics. The vibrations caused by this sudden movement reverberate through the surrounding rock structu... More »

The BBC explains that, in addition to a significant human death toll, earthquakes destroy the environment in the surrounding area by causing fires, tsunamis and landslides. While these events have relatively short-term e... More »

While earthquakes can occur almost anywhere, they are most common around the edges of the great tectonic plates of the Earth's crust. The plates are always in motion, and the edges tend to rub up against one another, bui... More »