Photos: Earthquake-response exercise

California National Guard soldiers use ropes and pulleys to extricate a person acting as a survivor from a confined space during a massive earthquake-response exercise.

Chuck Wong and his dog Kino, with the Oakland Canine Search and Rescue team, train to locate victims in a simulated collapse during a massive earthquake-response exercise simulating the aftermath of a magnitude 7.8 earthquake hosted by the California National Guard.

Dummies and live actors are utilized to simulate victims during a massive earthquake-response exercise simulating the aftermath of a magnitude 7.8 earthquake. The drill was hosted by the California National Guard and involved Guard units from seven states as well as active-duty soldiers and many local, state and federal agencies at the Del Valle Regional Training Center in Castaic.

California National Guard soldiers debrief during a massive earthquake-response exercise simulating the aftermath of a magnitude 7.8 earthquake.

Elgin Deighton, left, and Susan May, volunteers with the Irvine Community Emergency Response Team, practice loading provisions into vehicles at the Orange County Great Park in Irvine, where a distribution site was set up to simulate providing food and water for citizens during a massive earthquake-response exercise.

California National Guard soldiers build supports to secure a collapsed structure during a massive earthquake-response exercise simulating the aftermath of a magnitude 7.8 earthquake.

California National Guard soldiers use a special apparatus to extricate a person acting as a survivor from a confined space during a massive earthquake-response exercise.

California National Guard Officer Ramirez, left, talks to Master Sgt. Thomas Crane, right, in the Battalion Operations Center during a massive earthquake-response exercise simulating the aftermath of a magnitude 7.8 earthquake.

A California Air National Guard UH-60 Black Hawk helicopter from the Joint Forces Training Base in Los Alamitos is en route to the Del Valle Regional Training Center in Castaic during a massive earthquake-response exercise.

Downtown Los Angeles is seen from a California Air National Guard UH-60 Black Hawk helicopter from the Joint Forces Training Base in Los Alamitos that is en route to the Del Valle Regional Training Center in Castaic during a massive earthquake-response exercise.