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Canister Warranty Expires in 2035

The safety warranty on the first canisters of spent nuclear fuel are set to expire within a decade. There are 8.4 million people within 50 miles of the plant.

108 Feet From the Ocean

123 canisters of spent nuclear fuel sit on a seismically active bluff, just 100 feet from the Pacific. A tsunami or earthquake could compromise containment.

Disproportionate Impact

Camp Pendleton Marines, Oceanside families, and San Clemente residents are the closest communities — populations with the least time and fewest options to evacuate.

Interactive Map

Disaster Impact Zones

Explore how a release event at San Onofre could affect Orange County and San Diego County communities, beaches, and infrastructure.

Scenario
Single Canister Leak
Seismic Event
Catastrophic Release
Wind Direction
None
NW → SE
SE → NW
S → N
N → S
Show Landmarks
Fallout Zones
Immediate (0–2 mi)
High radiation dose
Evacuation (2–20 mi)
Acute health risk
Shelter-in-place (20–50 mi)
Elevated exposure
Monitoring (50–100 mi)
Contamination risk
Zones are illustrative based on NRC emergency planning guidelines and real geography. Not a predictive model.
3.2M
People in affected zone
340+
Schools at risk
18
Hospitals in range
25+
Beaches affected

Take Action Today

Join the movement to protect our community from nuclear waste risks. Your voice matters.

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