Kathy and I were walking around Chinatown during Chinese New Year and were shooting HDR sequences of a cable car where the California Street line crosses Grant when we noticed that all the lights on Grant were off. In a few minutes we heard sirens and several fire trucks drove by at high speed. While walking up Kearny we were crossing Commercial Street and saw that the fire trucks were at the end of the street which was only being illuminated by their red flashing lights. We decided to investigate and I spoke to this group of people who said they were all sleeping when they heard a loud bang and the ground shook. Then all the lights went out.