Longitudinal waves at work

The CCAG was hit by a small earthquake measuring 3.9 today afternoon. Near Millibrae, the Earthquake did not affect the CCAG intirely. Since the disaster , we have not checked the ccag buildingsfor damage. Earthquakes are common in San Francisco, so there should be nothing damaged.

A Timelapse captured the earthquake at 6:42

I try to tske a video of the TMAD, but the earthquake interrupted me, and I mis took it for someone stomping on the floor.

A nighttime Timelapse video slowed down to 60fps captured the earthquake.