What to know

• The magnitude-7.8 quake triggered small tsunami waves in the Philippines, Indonesia and Japan.S1
• The quake struck off the island of Mindanao, raising fears of possible tsunamis in the Philippines, Japan, Malaysia and Indonesia.S2
• People told to prepare for waves of up to three metres in parts of the Philippines, with smaller waves possible in Indonesia and MalaysiaA magnitude 7.8 earthquake shook part of the southern Philippines early on Monday, sparking tsunami warnings on some region...S3