Plate boundaries are where the action is. A large fraction of all earthquakes, volcanic eruptions, and mountain building occurs at plate boundaries. It is also where most of the people on Earth live.

Earth surface is covered with rigid plates that move, crash into each other and dive into the planet's interior. But when did this process begin? When you purchase through links on our site, we may ...

Ancient plate tectonics in the Archean period differs from modern plate tectonics in the Phanerozoic period because of the higher mantle temperatures inside the early Earth, the thicker basaltic crust ...

Some great ideas shake up the world. For centuries, the outermost layer of Earth was thought to be static, rigid, locked in place. But the theory of plate tectonics has rocked this picture of the ...

New research hints that plate tectonics began earlier than 4 billion years ago — not long after Earth had formed. When you purchase through links on our site, we may earn an affiliate commission. Here ...

Before I retired, I would often take school groups on tours of the HSU Geology Department’s seismograph. We’d start out in front of the drum on display in Van Matre Hall and talk about how ...

There is something strange about Earth. A few billion years ago, a process started here that we have never seen anywhere else. It completely reshaped the planet’s surface and its carbon cycle, ...

Earthquakes off the coast of northern Japan, due to stress between plate boundaries, have happened regularly over the centuries, with sometimes devastating effects. From southern Hokkaidō to around ...

A study published in the journal Geology rules out that extreme volcanic episodes had any influence on the massive extinction of species in the late Cretaceous. The results confirm the hypothesis that ...