Saturday, October 17, 2009.  5:04 pm.  Twenty years ago today, the Loma Prieta earthquake struck northern California, changing lives and landscapes forever.  I share my memory of the moment the quake struck, and what happened a few minutes later that taught me a very important lesson -- being in the midst of history as it's happening isn't always an adventure.

The SFGate website, online home of the San Francisco Chronicle, has a special section devoted to those fifteen seconds that changed everything.