Earthquake...?

We felt our first earthquake today! And let me tell you, I wasn't even entirely sure it was an earthquake. I thought that a large truck was rolling by in the street or somebody was moving something large above me. Mr. Nakamura didn't mention anything about it so I noted the time, went about my day and forgot about it. When I got home, Rob mentioned he felt rumbling at the same time but also wasn't sure if it was psychosomatic or not. Then I remembered and became excited for living through my first earthquake. It was negligible and we haven't seen any news reports of it, given the tiny magnitude of it. Yet, it was certainly an experience and I feel silly for being as excited as I am to have finally felt an earthquake.