The Northridge earthquake was pretty bad, but our apartment didn't sustain any damage. I've experienced a lot of earthquakes, but that was the strongest.
We also had a pretty bad tornado here in Brooklyn 2 years ago that did a lot of local damage, including having a 5 story tree fall on our apartment, and all our backyard furniture fly away. Charlie came home with his nanny just minutes before it hit and we saw everything happen out our window. it really happened in 1 second.
Then there's Hurricane Sandy. We didn't sustain any damage other than a leak in our ceiling compared to the devastation in Manhattan and other very close by Brooklyn neighborhoods.
Have you survived any natural disasters?