NorthRidge Earthquakes

The Northridge earthquake happened at 4:30 a.m. local time on January 17, 1994. Northridge is found about 30 km northwest of Los Angeles. This earthquake had a 6.9 moment magnitude. The hypocentral depth was 19 km. The duration was about 10 seconds to 20 seconds. The earthquake occurred along a "blind" thrust fault, close to the San Andreas fault. Note that a blind fault is a fault which does not extend to the surface. In other words, it is buried.

Earthquake && Tsunami

The Earthquake that hit in the Pacific Ocean made a huge dissaster. It made big waves throughout the ocean and it ended up hitting Japan hard. They lost a lot of lives and some lodt their homes.

CA Earthquake Hazard

Earthquake shaking hazards are calculated by projecting earthquake rates based on earthquake history and fault slip rates the same data used for calculating earthquake probabilities. New fault parameters have been developed for these calculations and are included in the report of the 2007 Working Group on California Earthquake Probabilities.

Seismic Waves

Seismic Waves are waves of energy that travel through the earth, for example as a result of an earthquake, explosion, or some other process that imparts low-frequency acoustic energy.  Many other natural and anthropogenic sources create low amplitude waves commonly referred to as ambient vibrations.