Swarms happen every few years around the Salton Sea. No worries.
Although, when the southern San Andreas goes with a 7.5 or larger, the least of the worries will be Disneyland. There will be thousands dead, tens of thousands injured. LAX airport, the seaports of LA and Long Beach, most freeways, and all railroad trunk lines from those ports will be shut down for weeks, perhaps months. Banking and business wil be stunted for months. Electricity, water and sewer service will cease for weeks, then be spotty for months, perhaps up to a year. The economic toll will ripple outward for years, likely triggering a recession nationally, as a hugely influential global capital will be taken offline for the mid-term. The local real estate market will collapse, extending the economic pain for years.
Any sane person in SoCal has a family food/water/medicine survival kit for at least 15 days, and the ability to defend themselves without police protection for 30 days. Just today I bought 10 fresh gallons of water at Ralph's to rotate out some of the older water I keep. And I never let my highest mileage car get below 3/4 of a tank of gas, so I can drive 300+ miles away if I need to. Those who don't have a plan and supplies are fools who won't survive when the shaking stops.
Disneyland will be the least of the concerns.