More than 51 million people worldwide have registered to participate in earthquake safety drills on Oct. 16, said Shakeout.org, the organizers.
The Great ShakeOut Earthquake Drills will take place at 10:16 a.m. local time. Participants include schools, workplaces and homes across earthquake-prone regions.
In California alone, more than 9.5 million people have signed up for the drills. Registration figures are current as of Thursday.
International ShakeOut Day allows people to rehearse earthquake response procedures. The drills can be conducted at any time and in multiple locations through video conferencing.
Organizers said the event provides an opportunity to update emergency plans. Participants can also check supplies and secure their spaces to prevent damage and injuries.
To register to join, visit ShakeOut.org.