Phase one diamond drilling at Infini Resources’ Falls Lake prospect, in its Portland Creek uranium project in Canada, has ...

Impact: The 1933 earthquake was Southern California’s deadliest in the modern record, leaving nearly 120 dead and causing $40 ...

A magnitude 7.5 quake in the Puente Hills thrust fault system — which runs under highly populated areas of L.A. and Orange counties — could kill 3,000 to 18,000 people, according to the U.S ...

A California fault line remains relatively unknown. It caused last week’s quake and might be the site of ‘the big one’ - The 10-mile deep Puente Hills thrust fault runs beneath downtown Los ...

The Puente Hills thrust fault is a broad underground fault that runs through Los Angeles and Orange counties, including under downtown Los Angeles — and scientists warn that it could one day ...

By contrast, an earthquake on the Puente Hills thrust fault system probably would max out at a magnitude 7.5 — still powerful, but less so than the southern San Andreas.

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.

Thrust, or reverse, faults are features in the Earth’s crust that occur when a massive slab of rock moves up and over a lower block of rock, which moves deeper into the Earth, Aron explained.

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.

NORFOLK, Va. — Fault lines are fractures or breaks in the Earth's crust where tectonic plates move past each other, often resulting in earthquakes. These geological features are classified into ...

The Puente Hills thrust fault is the same overall fault network that produced the Whittier Narrows – which measured a 5.9 magnitude, killed eight people and caused some $358 million in damage in ...