Fears over the San Andreas fault line were stoked on Monday night after a 'very heavy' earthquake rocked San Francisco. One ...

Non-volcanic tremor ramp up precedes slow slip in Cascadia by about a day, indicating that brittle-creeping process ...

A new analysis of earthquake rupture directivity provides essential insights for seismic hazard and risk assessments in urban ...

A rare earthquake was reported near Marshville, North Carolina, about a 35-mile drive east from uptown Charlotte, according ...

After the House of Representatives passed a resolution on Tuesday to fund the federal government and avoid a shutdown, two Oregon state lawmakers are denouncing proposed cuts — jeopardizing ...