Today is the 15th Annual Great Shakeout, with some 44 million people all over the world registered to take part in the annual international event focused on earthquake preparedness and safety. In California, 9.6 million people are taking part, with roughly 9,700 people in Lake County and just over 10,000 in Mendocino County. Those interested in participating today should go to shakeout.org. You’ll find what to do during the drill and information including useful apps that help with earthquake safety.