Just after I taught a lesson, I felt the room shake! It continued to move...We were having an earthquake! In my area, we are always afraid that it might be "the Big One". We have been expecting a big earthquake in this area for a long time. So when I feel the earth shake, I wonder if it will keep moving...if so, it could be "the Big One". We are supposed to be prepared for a disaster.
Apparently, the earthquake was only 4.0 on the Richter Scale. It felt quite strong!