25-year-old OC man dies after rattlesnake bite

Julian Hernandez succumbed to injuries after being bitten while mountain biking in Irvine

Mar. 12, 2026 at 5:11pm

Julian Enrique Hernandez, a 25-year-old Costa Mesa resident, died on March 4 after being bitten by a rattlesnake while mountain biking at the Quail Hill Trailhead in Irvine, California on February 1. Hernandez was immediately transported to a nearby hospital and placed in the ICU, but despite over a month of treatment, he ultimately succumbed to the injuries sustained during the encounter.

Why it matters

Rattlesnake bites, while common in Southern California, rarely result in fatalities. This tragic incident highlights the potential dangers hikers and bikers face when venturing into areas with active snake populations, and underscores the importance of awareness and caution when enjoying the outdoors.

The details

Hernandez was mountain biking at the Quail Hill Trailhead near the Quail Hill Community Center in Irvine when he was bitten by a rattlesnake. He was immediately transported to a nearby hospital and placed in the Intensive Care Unit, where he remained for over a month as he battled the effects of the bite. Despite the medical treatment, Hernandez ultimately died from his injuries on March 4. The Orange County Coroner's Office officially attributed his death to an animal bite.

  • The incident occurred on February 1 at the Quail Hill Trailhead in Irvine.
  • Hernandez died on March 4, about a month after being bitten.

The players

Julian Enrique Hernandez

A 25-year-old Costa Mesa resident who died after being bitten by a rattlesnake while mountain biking.

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What they’re saying

“I love Julian more than anything in the world and I'd like to get this out there. Please help support my little brother.”

— Hernandez's brother (GoFundMe)

What’s next

Hikers and bikers in the Irvine area are urged to stay on marked trails and keep a close eye on the ground, especially during warmer "early-season" days when snakes are more active. If you encounter a rattlesnake, maintain a distance of at least ten feet and do not attempt to move or touch the animal.

The takeaway

This tragic incident serves as a sobering reminder of the potential dangers that outdoor enthusiasts face when venturing into areas with active snake populations. It underscores the importance of awareness, caution, and preparedness when enjoying recreational activities in Southern California's natural landscapes.