Therefore, while the San Andreas fault may generate more powerful earthquakes—up to magnitudes of around 8.0 or even higher—the location of the Puente Hills thrust fault makes it a major hazard.

Monday’s magnitude 4.4 quake that rattled Southern California is believed to have struck on a well-known and dangerous fault system known as the Puente Hills thrust fault system.

“An exciting implication of our study is that seismic shaking, caused by moonquakes generated by movement on young faults ...

Millions of people are directly on top of the Puente Hills Thrust Fault where this week’s earthquake fell. Alex Rozier reports for the NBC4 News at 4 p.m. on Tuesday, August 13, 2024.

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 ...

Fault below Los Angeles and Long Beach ports once thought to be inactive could cause destructive earthquakes, study says The Wilmington blind-thrust fault lies beneath the Port of Long Beach.

The fault, known as the Wilmington Blind-Thrust fault, stretches for about 12.5 miles, running northwest from Huntington Beach, directly beneath the Los Angeles and Long Beach harbors, past the ...

The USGS has estimated that a major magnitude 7.8 earthquake on the San Andreas fault could kill about 1,800 people, while a 7.5 magnitude quake on the Puente Hills thrust fault could kill as many ...