Pupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUANPupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUANPupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUANPupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUANPupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUANPupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUANPupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUANPupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUANPupils from the Pinyahan Elementary School in Quezon City join the 4th Quarter Nationwide Simultaneous Earthquake Drill on Thursday, Nov. 9, 2023. The government has been conducting regular earthquake drills in preparation for the 'Big One.' PHOTO BY ISMAEL DE JUAN