A Tsunami is a series of sea waves commonly generated by under-the-sea earthquakes and whose heights could be greater than 5 meters. It is erroneously called tidal waves and sometimes mistakenly associated with storm surges. Tsunamis can occur when the earthquake is shallow-seated and strong enough to displace parts of the seabed and disturb the mass of water over it. Some natural signs of an approaching local tsunami include:
1) A felt earthquake.
2) Unusual sea level change: sudden sea water retreat or rise.
3) Rumbling sound of approaching waves.
The Seismological Observation and Earthquake Prediction Division of PHIVOLCS publishes the latest Tsunami bulletin for the various regions of the Philippines. For the most current Tsunami information, click HERE.