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

The Earth's plates jostle about in fits and starts that are punctuated with earthquakes and volcanic eruptions. 4 min read There are a few handfuls of major plates and dozens of smaller, or minor ...

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 ...

Plate tectonics is relatively new, put forth in the last 30 years or so — its forerunner was the now-discarded continental drift theory. The theory states that Earth's outer shell is made up of ...