International ShakeOut Day
International ShakeOut Day is held on October 21. Drop, Cover and Hold On! If nothing else, remember to take those three steps if and when an earthquake strikes. This event in the third decade of the month October is annual. 
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International ShakeOut Day is every third Thursday of October, when most schedule their ShakeOut drills and other earthquake preparedness activities. This annual date was selected back in 2009, when most schools agreed this was the best time.
The first Utah Shakeout was held on April 17, 2012, and had the highest level (per capita) of any ShakeOut with more than 940,000 Utahs. The first nationwide New Zealand Shakeout was held on September 26th with more than 1.3 million participants. This was the first nationwide drill of any country.
Most people will practice how they will Drop, Cover, and Hold On during a large earthquake, which only takes about one minute. Some organizations conduct more extensive drills, which may take an hour or even all day.
Similar holidays and events, festivals and interesting facts
International Pediatrics Day on October 20 (The Day of Pediatrics or Día Internacional de Pediatría was instituted in 1973, during the World Congress of Pediatrics held in Argentina, in commemoration of the founding of Argentine Pediatric Society);
International Mastocytosis & Mast Cell Diseases Awareness Day on October 20
International Pronouns Day on October 20
National Down Syndrome Day in South Africa on October 20
Information Overload Day on October 20
Pediatrician Day in Argentine on October 20
National Day of Fight against Obesity in Argentina on October 20 (Held on the third Wednesday in October);
Arbor Day in Czech Republic on October 20
International Day of the Nacho on October 21 (nachos first appeared in 1943 in Piedras Negras, a small Mexican city which is very near to the U.S. military base Fort Duncan, in Texas);
Global Iodine Deficiency Disorder Prevention Day or World Iodine Deficiency Day on October 21
International Day of Culture for Concord and Peace on October 21 (organized by Aljabart Charitable Foundation);
National Dental Hygiene Day in Thailand on October 21
Bavarian Dentists' Day on October 21 (Beginning on Thursday of the fourth week of October);
Lionfish Spearing in Belize on October 21 (Marine conservation holidays, September to May);
National Annual Tree Loving Day in Thailand on October 21
Energy Saving Day on October 21
International Caps Lock Day on October 22
Fechner Day on October 22 (International observance);
World Champagne Day on October 22 (Celebrated on the penultimate Friday of October);
International Day for the Protecting Men's Nervous System From Women's Violence on October 22
World Traditional Medicine Day on October 22
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