Scientists studying the massive earthquake that struck the South Pacific on September 29, 2009, have found that it actually involved two great earthquakes: an initial one with magnitude 8.1, which ...

Seismological data from recent subduction earthquakes suggest that megathrust earthquakes induce transient stress changes in the upper plate that shift accretionary wedges into an unstable state.

The immense Olympus Mons volcano on Mars (about 23 km tall and 600 km wide) exhibits a somewhat lopsided structure: elongated to the northwest, shortened to the southeast, with corresponding types of ...

Researchers say they have identified the origins of an unusual fault that probably magnified the catastrophic 2011 Japan tsunami. On March 11, 2011, a magnitude 9 earthquake struck under the seabed ...

The northwestern margin of the Hetao Graben, North China, is bounded by a pronounced 160-km-long Langshan Piedmont fault (LPF). The kinematics and recent tectonic activity of this rift-border fault ...

Faulting in geology refers to the brittle deformation process that produces fractures (faults) along which measurable displacement has occurred within the Earth’s crust. It accommodates tectonic ...