What's Shakin' right now?
Even when there is not an earthquake, the shake maps are fun to look at. The museum is close to Necanicum Drive and built on sand fill. The seismometer is very sensitive, so it records movement from trucks driving down the street or museum personnel moving furniture! We may also get some shaking from the ocean, depending on the day.
Below is a map of movement on an uneventful day in March 2005. There was little traffic or movement until after 8:00am. Throughout the morning we see small traffic vibrations. In the afternoon, museum personnel began rearranging furniture in the area around the seismometer - those big squiggles are just us, not earthquakes!
Here is a shake map of a real earthquake, recorded at Spokane, Washington, on November 11, 2001:
What's Shakin' right now at the Seaside Museum?