Jurassic Park San Diego was an upcoming theme park, similar to the one built on Isla Nublar. The park was planned in 1997, and revealed in The Lost World: Jurassic Park (film). Developed by Peter Ludlow, this new "Jurassic Park" was smaller than the island park, but it was to feature electric fences, as paddocks for the animals, and other attractions.
The Plan
Peter Ludlow's original plan was to capture animals off of Isla Sorna and populate them in the new park. As seen in the sequel of the Jurassic Park film, his plan failed, resulting in the San Diego Incident.
The San Diego Incident
Main Article: San Diego incident The San Diego Incident was the result of the new Jurassic Park. Ludlow and his team captured an adult male Tyrannosaurus and an infant. While in the Venture Shipwreck, the male Tyrannosaur broke out, and rampaged around the city, searching for it's offspring. This caused many deaths, and damage.
Aftermath
Ian Malcolm was thought to be crazy, after publishing a book based on the Isla Nublar Incident. No one believed the thought of cloned dinosaurs. After this climax in the Jurassic Park Series, the public now knows the existence of cloned dinosaurs on the five deaths. Due to this, Isla Sorna was turned into a natural preserve, making it illegal for any humans to be on the island. In Jurassic Park III, an illegal boat ride, the Dino-Soar, toured Isla Sorna, now that the public knows of the island.
Currently
It's assumed that the facility built is currently abandoned, or has been deconstructed.