ALEXANDRIA, Va. — A Montgomery County, Md. earthquake that measured 3.6 on the Richter scale (USGS) shook the Washington D.C. metro region this morning. The Post already has a report on it Mild earthquake felt across region

The epicenter was in Gaithersburg near the intersection of Forest Brook and Waring Station roads (39.145°N, 77.222°W), the geological agency reported in a preliminary finding. Its depth was 3.1 miles.

Our alarm had just gone off here and we did not feel the quake in the West End of Alexandria. My son slept through it. I have confirmed that it was felt by co-workers in Tysons Corner. UPDATE: The quake woke up a co-worker in his Germantown (just a few miles from the epicenter) home. He reports that every thing on his dresser was shaking. ANOTHER UPDATE: The quake woke up a co-worker who lives in Brookland, Northeast, D.C.

On May 6, 2009, a 1.8 magnitude earthquake shook Annandale, Va., but I did not feel that one either. I did feel the December 9, 2003 4.5 quake centered west of Richmond in Vienna. Seeing the waves more through the walls was something else.

Did you feel the quake? Please let me know if you did in the comments.

An aside: Last week, a expatriate Washingtonian in San Diego I “know” was getting all uppity on Facebook about the hot weather we were having and saying things like “I always debate if I miss East Coast winters less or East Coast summers. As it’s 100 there & 70 here, I’m going with summers.” Then he found himself in a warehouse during a 5.4 quake. I was tempted to say “see, that’s what you get for mocking our seasons” but I held off. So, I guess we not only have to deal with extreme weather, we get earthquakes now too.

At least we got rid of Norv though.