Where were you on Oct. 17, 1989? If you were in the San Francisco Bay Area, that's an easy question to answer.
San Francisco city leaders are using this weekend's 20-year anniversary of the 6.9 magnitude Loma Prieta earthquake to remember that day and remind everyone that the next big one could strike at any second.
A series of gatherings will be set up in four communities throughout the City.
On Saturday, The Big Rumble will host preparedness fairs in the Bayview, Marina, Mission and Sunset districts.
Preparedness is the main feature at the gatherings but there will also be entertainment, activities for kids and giveaways.
The week end with a closing ceremony at the Marina Green, marking the exact moment 20 years ago that quake struck, collapsing building, freeways and a portion of the San Francisco-Oakland Bay Bridge, and spawning several fires.
Scientists say there is a 62 percent chance of a magnitude 6.7 or greater quake hitting the Bay Area in the next 30 years.
See full coverage of the Loma Prieta 20-year anniversary on our special section.