Today is the 30th anniversary of the Loma Prieta earthquake.
Four years later I started to work for a company headquartered in the Bay Area and heard some interesting stories from co-workers about their memories from that day.
One of them would have normally been on the double deck highway that collapsed, but had forgotten something and had to go back into to the office to get it. This delayed him enough that he was not quite to the collapse.
Since the Loma Prieta earthquake there has been only two 5.0 or greater earthquakes in the Bay Area. Back in 2000 there was a 5.0 in Yountville and in 2014 a 6.0 in South Napa.
In 2000 I had not yet moved to the Bay Area and I was in Canada when the 2014 quake hit. See: Breakfast Shake News
There is actually a lot of research going on to determine exactly which fault line to assign the quake to and figure out how it will effect other faults in the area. It may be on the North Diablo fault which is not shown in the map above, or perhaps on a fault that is not yet known.
Back in July there was a 4.3 quake not far from our office. I definitely felt that one as I was sitting down while teaching a class. See: A Little Shake
It is actually a bit scary that we have not had more medium sized quakes. They help relieve tension on the faults and reduce the chance of larger quakes.
Do you remember the Loma Prieta quake? I know that many do because it happened during the World Series.