The earthquake that just shook the East Coast was caused by one of dozens of ancient fault lines that have lain dormant ... a geologist at the US Geological Survey, said in a briefing on Friday.

Since 1950 there have been about 20 quakes with a magnitude above 4.5, according to the United States ... slippage along fault lines that generate earthquakes relatively often. East Coast quakes ...

The east coast of the United States could face dangerous marine heat waves—prolonged periods of unusually warm seawater temperatures—for more than 100 days a year by 2100, new research has shown.

Artist and social commentator Grayson Perry crosses the US, exploring its biggest fault lines, from race to class and identity, making art as he goes. On a bike trip down the east coast, Grayson looks ...