Southern California is facing severe coastal erosion and property damage, highlighted by a 30-foot sinkhole at actor Nicolas Cage's Malibu mansion and destroyed homes in Dana Point. Supercharged by climate change, an intense El Niño winter threatens to temporarily raise sea levels by up to two feet when combined with upcoming Kelvin waves and extreme king tides. In response, California has declared a preemptive state of emergency, while critical infrastructure like Amtrak's Pacific Surfliner rail line faces ongoing disruptions.
Nicolas Cage's Malibu property hazards
- ▪High surf and coastal erosion in Malibu, California, opened a 30-foot-by-30-foot sinkhole that collapsed the driveway and front porch of actor Nicolas Cage's mansion.
- ▪The California Coastal Commission originally denied residential building proposals on Nicolas Cage's Malibu lot in 1976 and 1986 due to extreme wave hazards and erosion risks.
- ▪The sinkhole at Nicolas Cage's Malibu property ruptured a gas main, swallowed an access road, and forced dozens of local residents to evacuate.
Summer 2026 hurricane-driven erosion
- ▪A series of Eastern Pacific cyclones and hurricanes, including Hurricane Marie and Hurricane Polo, enhanced El Niño-driven swells that eroded Southern California beaches during the summer of 2026.
- ▪Storm surf and runoff from Hurricane Marie over the 2026 Labor Day weekend eroded the Santa Monica concert site, forcing officials to cancel the inaugural Ocean Way Festival.
Factors driving temporary sea level rise
- ▪Oceanographer Michael Jacox said an underwater Kelvin wave associated with El Niño is expected to reach California in early October 2026, potentially adding another 6 to 12 inches to the temporary sea level rise caused by El Niño
- ▪The Southern California sea level has risen 8 to 12 inches over the past century, and a strong El Niño could temporarily increase it by an additional 6 to 12 inches.
- ▪The temporary sea level rise from El Niño and the Kelvin wave could coincide with seasonally extreme king tides occurring during the tide-amplifying phase of the 18.6-year lunar nodal cycle.
Impacts on coastal rail infrastructure
- ▪Coastal erosion and high surf repeatedly disrupted Amtrak's Pacific Surfliner rail line between San Diego and Los Angeles during the summer of 2026, causing multiple train cancellations.
- ▪The Orange County Transportation Authority secured $308 million in emergency funding to upgrade four coastal rail hot spots along the Pacific Surfliner route, but permitting delays have pushed completion back by 18 months
Erosion at Tamarack beach
- ▪Adam Young of the Scripps Institution of Oceanography recently visited Tamarack Beach, climbing over cobblestones where a sandy beach used to be.
- ▪At Tamarack Beach in Carlsbad, California, coastal erosion caused the sandy beach to disappear almost overnight, leaving only cobblestones and forcing the ocean into an adjacent parking lot.
El Niño intensity predictions
- ▪The El Niño weather phenomenon, which emerged in June 2026, is expected to demonstrate its greatest global atmospheric and weather effects through the end of 2026 and into early 2027.
- ▪The National Oceanic and Atmospheric Administration's Climate Prediction Center reported a 97% chance of a strong or very strong El Niño for the three-month period ending in December 2026.
Coastal Commission permitting decisions
- ▪The California Coastal Commission has received an uptick in emergency permit requests due to recent storms induced by Hurricane Marie, high tides, and accelerated coastal erosion
- ▪The California Coastal Commission was convinced to allow construction on Nicolas Cage's Malibu lot after the lot's original owners proposed protective engineering, including a sea wall
Government coastal planning
- ▪California declared a preemptive state of emergency during the week of September 21, 2026, to mobilize disaster relief and first responders ahead of anticipated El Niño winter storms.
- ▪In 2026, Malibu released a Coastal Vulnerability Assessment that highlighted the acute dangers of erosion for Sea Level Drive.
Debatable claims
- ▪The California Coastal Commission's strict permitting process is justified despite emergency threats to infrastructure
- ▪Allowing residential construction in known high-risk coastal zones is a policy failure
- ▪California should prioritize managed retreat over coastal engineering to address rising sea levels
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