Geophysical Research Letters

Old fractures caused rare 8.6 magnitude earthquake

On 11 April 2012, an 8.6 magnitude earthquake occurred 100 kilometers (62 miles) off the coast of Sumatra. This earthquake was unusual in that it originated within the plate rather than at a plate boundary. In fact, it is ...

Aug 31, 2012
4.9 / 5 (10) 3 | with audio podcast

The ocean's hidden waves show their power

Their effect on the surface of the ocean is negligible, producing a rise of just inches that is virtually imperceptible on a turbulent sea. But internal waves, which are hidden entirely within the ocean, ...

Jan 08, 2014
4.5 / 5 (10) 3 | with audio podcast