An earthquake of magnitude 7.4 on the Richter scale jolted Mindanao, The Philippines on Saturday, reported the National Centre for Seismology.
The Philippines army battles terrorists backed by Islamic State in the first major military encounter with Islamists in that part of the world.
Nearly 200,000 people have been rendered homeless and 475 confirmed dead after the Philippines' worst typhoon this year, officials said on Wednesday, as the government appealed for international help.
The victims include 13 Muslim rebels and eight soldiers, the military said.
The explosion, which destroyed the waiting area at the Davao City airport on Mindanao Island, struck at about 5.30 pm. local time.
The two men reportedly have lived on the restive southern island of Mindanao since they were separated from their\ndivision, staying on for fear they would face court-martial if they returned to Japan.
Philippines boxing icon Emmanuel 'Manny' Pacquiao says he took all kinds of drugs as a teenager but fully supports President Rodrigo Duterte, whose vicious anti-drugs campaign has led to the killing of more than 3,000 people, mostly users and pushers, in three months.
Driven from its self-styled caliphate in Iraq and Syria, Islamic State is down but not out. Where once they confronted armies, the extremist Islamist group's adherents have now staged hit-and-run raids and suicide attacks. In some cases, the group has claimed responsibility for atrocities, including the bombings of churches and hotels in Sri Lanka that killed at least 253 people. Its involvement is not always proven, but even if the link is ideological rather than operational, Islamic State still poses a security threat in many countries.
Manny Pacquiao's camp today slammed the officials after the Filipino great lost his World Boxing Organisation welterweight title in a controversial unanimous decision to Australia's Jeff Horn.
'It is time India withdraws the complaint from the UN and fully integrates the state of J&K into the Indian Union,' recommends Colonel Anil A Athale (retd).
Armed forces and the police can only ensure that violence is kept under control but for any kind of lasting peace, politicians will have to find an answer to the perception that the Indian State is anti-Islam. Therein lies the biggest challenge to the Modi government, says Colonel Anil A Athale (retired).
'There are thousand ways to pressure Pakistan to make it behave.' 'Going to the ICJ was the worst possible option,' says Colonel Anil A Athale.
While Iraq and Afghanistan top the Global Terrorism Index 2014 as the most terror-affected nations, India has been ranked number six.