As PG&E’s aging Diablo Canyon nuclear power plant is up for a 20-year federal license renewal, one scientist cites new GPS data to suggest there’s a looming seismic threat from an active thrust fault ...

Over recent geologic time, as the lunar interior cooled and contracted the entire moon shrank by about 100 m. As a result, its brittle crust ruptured and thrust faults (compression) formed distinctive ...

The 4.4 magnitude earthquake that was felt in many Southern California cities Monday fell on the Puente Hills Thrust Fault System, which is potentially the most destructive in the region. Millions of ...

Scientists have discovered that moonquakes, not meteoroids, are responsible for shifting terrain near the Apollo 17 landing ...

A shrinking moon is causing moonquakes and faults near the lunar south pole, data from a NASA-funded study shows. The study, published Thursday in the Planetary Science Journal, took a closer look at ...

Findings from a recently published paper led by Smithsonian senior scientist emeritus Thomas R. Watters reveal evidence that the south polar region of Earth’s moon has experienced the effects of the ...

In earthquake country, the meandering paths of quake faults easily get seared into memory in the same way as a California freeway map. An earthquake fault is a fracture in the ground between two ...

Recent earthquakes that have shaken California may be a result of a Southern California fault line considered even more dangerous than the San Andreas fault. Los Angeles was rattled by a 4.4 magnitude ...