The Philippines lies within the Western Pacific Basin, which puts it on the path of an average of 20 tropical cyclones annually, nine of which make landfall. Relatedly, most casualties of natural disasters in the country are caused by all types of floods, i.e., river flood, flash flood, and coastal flood.
The country has the following rankings in terms of vulnerability to natural disasters:
This link from gov.ph has contact information of the government agencies and units involved with disaster relief and rescue operations. For details please click the link or the pic above.