The San Diego Zoo Safari Park shared video of an elephant herd forming an "alert circle" when startled by an earthquake.

A video from the San Diego Zoo Safari Park taken during an earthquake put complex elephant herd dynamics on display.

Not just cats and dogs, but elephants, horses, birds, and a turtle—all caught on camera across the region.

According to the zoo, this behavior is known as an 'alert circle' and is intended to protect the young — and the entire herd ...

A herd of elephants at a safari park in San Diego was caught on camera instinctively protecting their young after a ...

CNN obtained access to footage of a unique moment at the San Diego Zoo, when a herd of elephants surrounded one another for ...

There is a 60% chance of a 6.7 or greater earthquake occurring in Southern California, according to the Southern California ...

The United States Geological Survey recorded a preliminary earthquake of 5.2 about 2.5 miles south of Julian on Monday ...

When a 5.2-magnitude earthquake shook the U.S. city of San Diego on April 14, a video showing five African elephants huddling together in the middle of their enclosure at San Diego Zoo Safari Park ...

An earthquake struck Julian Monday morning and was felt across San Diego County, including parts of Los Angeles and Tijuana.

Southern California hasn't stopped shaking since a major 5.2 magnitude earthquake struck San Diego on Monday. In the hours ...

As the ground shook from a 5.2-magnitude earthquake, a herd of elephants at the San Diego Zoo Safari Park sprung into action ...