Residents, businesses and students across Washington will participate in the Great Washington ShakeOut on Oct. 17 at 10:17 a.m. The event aims to promote earthquake preparedness through a drill that encourages participants to "drop, cover, and hold on" in response to simulated seismic activity.

The ShakeOut, practiced globally, is a significant initiative designed to build muscle memory in the event of an earthquake. According to the Washington Military Department, more than 1.3 million residents have registered to participate in this year's drill, reinforcing the importance of readiness according to the Washington State Military Department's release.

As of this writing, various counties, including Grant County with 9,120 participants and Adams County with 4,768 participants, according to ShakeOut.org.

In addition to the earthquake drill, the event will include a test of more than 120 tsunami sirens along Washington's inner and outer coastlines, according to WSMD. Unlike the typical monthly tests that use the Westminster Chimes, this drill will feature the real wailing sound of a tsunami warning. Participants are instructed not to call 911 during the siren test to avoid overwhelming emergency response lines.

For those who have downloaded the MyShake Earthquake Early Warning App, a test alert will be sent to enhance community engagement. In addition, local jurisdictions will conduct tests of their reverse 911 systems, and NOAA Weather Radios will sound alarms. The National Weather Service will also utilize the Emergency Alert System to notify radio and television viewers of the drill, according to ShakeOut.org.

While the ShakeOut occurs Oct. 17, participation is encouraged year-round. Individuals and organizations can register their drills for any day, allowing flexibility to practice at a convenient time.