Until 1992, when California’s magnitude-7.3 Landers earthquake set off small jolts as far away as Yellowstone National Park, scientists did not believe large earthquakes sparked smaller tremors at…

Last summer, researchers writing in the international journal Tectonics concluded that geological faults in the Sichuan Basin, China “are sufficiently long to sustain a strong ground-shaking…

A new study of possible links between climate and geophysics on Earth and similar planets finds that prolonged heating of the atmosphere can shut down plate tectonics and cause a planet's crust to…

Chile’s Chaiten Volcano is shown spewing ash and smoke (centre left of image) into the air for hundreds of km over Argentina’s Patagonia Plateau in this Envisat image acquired on 5 May 2008. The 1000…

A comparison of recorded Antarctic temperatures and snowfall accumulation to predictions by major computer models of global climate change offer both good and bad news. The good news is that the…

Beads known to geologists as carbon cenospheres were formed from liquefied carbon deep in the earth when an asteroid struck some 65 million years ago, according to a new theory. The carbon…

A new model of inner Earth constructed by Arizona State University researchers pulls past information and hypotheses into a coherent story to clarify mantle motion. “The past maybe two or three years…

Scientists probing volcanic rocks from deep under the frozen surface of the Arctic Ocean have discovered a special geochemical signature until now found only in the southern hemisphere. The rocks…

The earthquake on April 18, 2008, about 120 miles east of St. Louis, registered 5.2 on the Richter scale and hit at 4:40 a.m. with a strong aftershock occurring at approximately 10:15 a.m. that…

Gondwana was a ‘supercontinent' comprised of Antarctica, South America, Africa, Madagascar, Australia-New Guinea, and New Zealand, as well as Arabia and the Indian subcontinent of the Northern…