Multiple videos circulating on social media captured horrific scenes of buildings collapsing after a powerful 8.1 magnitude earthquake struck the Philippines on Monday, according to Bloomberg. The earthquake prompted a tsunami warning to be issued and evacuation of affected areas.There are reports of damage to high school and university buildings due to the strong tremors that occurred in many parts of the country. The earthquake struck the southern Philippine island of Mindanao, with initial assessments warning of potential damage and dangerous tsunami waves.According to viral videos shared online, several buildings were seen reduced to debris due to the rapid ground shaking. In a clip filmed outside a school campus, students were seen gathering in an open field as a precautionary measure after the building collapsed. The German Research Center for Geosciences (GFZ) initially measured the quake’s magnitude at 8.2, which later revised its estimate, Reuters reported. Other monitoring agencies reported magnitudes varying from 7.0 to 7.8.The Pacific Tsunami Warning Center said tsunami waves up to 3 meters (10 ft) were possible along some coasts of the Philippines. According to the Associated Press, waves up to 1 meter (3 feet) high could occur on some coasts of Indonesia and Malaysia.Read this also Major 8.2 magnitude earthquake hits Mindanao coast in the Philippines; Tsunami warning issuedAt least one person was killed and four others were injured in the earthquake, according to AFP. Police said several buildings and houses collapsed in the affected areas, while rescue operations are underway.“Many buildings were affected, but I cannot count them right now as we are busy with the ongoing rescue operations. Many buildings collapsed. Some houses also collapsed,” said Master Sergeant Robert Dagan of the General Santos City Police.Tsunami warnings were issued by authorities in the Philippines and neighboring Indonesia after the earthquake struck at a depth of about 10 kilometers. The US Tsunami Warning System has also warned of a possible tsunami threat in parts of the Pacific region.According to Philippine authorities, tsunami waves more than a meter high are possible and could continue for several hours after the earthquake.Authorities reported damage to several structures in the southern city of General Santos, including part of a building that collapsed after the quake. Hospitals evacuated patients, while schools evacuated students to safe locations on the first day of classes in some areas, Bloomberg reported.Benji Ancheta, police chief of Alabel city in Sarangani province, told Reuters that cracks appeared in the police station soon after the earthquake.“This is the most powerful earthquake we have ever seen,” Ancheta said. A magnitude 6.1 aftershock struck the southern Philippines, hours after a magnitude 8.1 earthquake struck the country, according to the United States Geological Survey.The Philippines lies along the Pacific Ring of Fire, one of the most seismically active regions in the world, making the country highly vulnerable to earthquakes and volcanic activity.