Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

Geology. The presence of oceans, continents and plate tectonics on Earth is most likely the reason there is no evidence for advanced extraterrestrial civilizations, according to new research by ...

The movement of these tectonic plates leads to earthquakes and volcanoes ... Where the movement of currents and the mantle converge, like this, plates are pushed together. This is called a ...