Thousands in Washington participated in Thursday's earthquake drill.

Students, workers and families — some 870,000 people around the state — dropped to the ground, took cover and held on Thursday morning.

There was no emergency — this time. They were practicing what to do in the event of an earthquake. The drill, called the Great Washington ShakeOut, was part of a larger, worldwide annual drill involving millions of people.

The Washington Emergency Management Division, which coordinated the effort here, says participation was up from last year, based on online registrations.