Okay, here is the link about earthquake safety.

http://geology.com/articles/earthquake-safety.shtml

And I received this from Arlington County:

After the Earthquake: Structural Safety Issues

August 23, 2011

The east coast experienced a 5.8 magnitude earthquake at 1:50 p.m. today, August 23, 2011. Initial reports from Arlington County personnel have indicated only minor damage. However, we recommend the following:

If you smell gas, leave the building or area and call 9-1-1 immediately.

Commercial structures: If you have concerns regarding the safety of your
building, please contact your building’s engineer, a structural engineer or
licensed contractor.

Residential structures: please survey your home for new cracks in brick facades and chimneys, foundation/basement walls and interior finishes around openings for windows and doors. If you question your home’s structural stability, please contact a structural engineer or licensed contractor.

If you think you have an unsafe condition, evacuate the building and call
[Police/Fire non-emergency phone number].


I just heard that they found cracks in some of the stones at the top of the Washington Monument. It's closed while they determine the severity of the damage and how to fix it.