The Northridge earthquake was 20 years ago this past week. I found a cool site I wanted to link for you.
It's the Earthquake County Alliance page on the quake. Click on that link, scroll down, and you'll see this map:
It's the basic USGS shake map for th event, with hardest shaking in red, significant shaking in yellow, and mild shaking in green. The numbers on there you can click on, and a video interview of a person who was at that spot will appear. A short interview will run--less than two minutes in most cases. They're terrific and give you the sense of the mindset of someone who experienced it.
All but one person was asleep; it was 4:30 a.m. I particularly liked the police officer admitting that though he knew what to do--had been trained to "drop, cover, and hold on," that in his panic he went running outside. One can hardly blame him!
Visit it and enjoy.