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 ...

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.

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

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.

While California’s 750-mile-long San Andreas Fault is notorious, experts believe a smaller fault line possesses a greater threat to lives and property in the southern part of the state.

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 ...

One young thrust fault scarp, located within the de Gerlache Rim 2 Artemis III candidate landing region, is modeled and shows that the formation of this fault scarp could have been associated with a ...

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 ...