On April 15, 2025, Southern California felt the tremors of a 5.2-magnitude earthquake, unsettling not just residents but also the animals at the San Diego Zoo Safari Park. While the quake, originating from the Elsinore Fault in San Diego County, left the human-built environment largely unscathed, it brought out a remarkable protective performance from the park's African elephants.
Elephants' Natural Instinct in Action
As the ground trembled, the seasoned females in the herd—Ndlula, Umngani, and Khosi—immediately moved to shield the youngest members. With quick precision, they formed an 'alert circle' around calves Zuli and Mkhaya, both aged seven. This defensive posture wasn't just random elephant antics. It's a planned move, a testament to their deep-rooted survival instincts. Positioned outward with ears extended, the adults maintained a vigilant lookout while the calves stayed safely nestled within.
Their sensitivity to the vibrations rippling through the earth is akin to a unique superpower. Elephants can detect these movements through their feet, a skill that likely played a crucial role in their rapid response to the quake. It was a sight of pure nature in action, and zoo curator Mindy Albright has noted how these giants are wired to react instinctively to such threats.

The Role of Social Bonds
During the quake, a touching interaction unfolded within the circle. Zuli, the male calf, tentatively wandered too close to the circle’s boundary. But Khosi, one of the protective females who had taken part in his upbringing, used her trunk to gently guide him back to safety. This not only showed their instinctual protective streak but also spoke volumes about their strong social connections. The herd stayed in formation well past the immediate threat until they were sure all was good. After an aftershock of 4.0-magnitude hit, they swiftly regrouped, demonstrating their persistent vigilance.
The San Diego Zoo Wildlife Alliance spotlighted this event as a fascinating case of elephants’ natural behaviors. Elephants are social animals that rely heavily on group cohesion, which was abundantly evident in their coordinated response to the quake.
Videos of this protective dance took over social media, capturing the hearts and imaginations of people worldwide. It's a vivid reminder of the complex lives elephants lead, hinging on duty, affection, and an inherent desire to protect their future generations.