These are warm-core low pressure systems associated with a spiral inflow of mass at the bottom level and spiral outflow at the top level. They always form over oceans where sea surface temperature, also air temperatures are greater than 26°C.
The province experiences both tectonic earthquakes, caused by movement along faults and nearby subduction zones, and volcanic earthquakes, which are associated with magma movement and rock fracturing beneath Mayon Volcano.
Locally termed daluyong ng bagyo is the abnormal rise in sea level above normal tidal levels which push ocean water toward, and over coastal land caused by tropical cyclone.
Series of sea waves commonly generated by under-the-sea earthquakes and whose heights could be greater than 5 meters. This 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
A mass movement of rock, soil, and debris down a slope due to gravity. It occurs when the driving force is greater than the resisting force. It is a natural process that occurs in steep slopes. The movement may range from very slow to rapid. It can affect areas both near and far from the source.
