Risk assessment and mapping for Canlaon Volcano, Philippines is reported in this paper. Volcanic hazards in Canlaon Volcano
affect the lives and properties within the vicinity. Thus, risk is present as a result of the relationship between the hazards and the
human and non-human elements. The volcanic hazards considered were pyroclastic flow, lava flow and lahar. The risk of these
hazards to two main factors was investigated, namely, to lives and to infrastructure and/or utility. Using the risk equation from the
United Nations International Strategy for Disaster Reduction (Risk = Hazard x Vulnerability), actual computation of the risk values
was made. The parameters in the equation were given numerical values. Numerical values for each hazard were assigned using the
descriptive category of high, medium and low. The vulnerability parameter was given numerical values from the socio-economic
data according to the presence, or absence, of population and infrastructure/utility factors. Having numerical values assigned to
them, the hazard and vulnerability factors could then be multiplied to obtain the risk values. The ranking of the areas according to
the hazard and vulnerability parameters was used to map out the volcanic risks for Canlaon Volcano. A total of 12 risk maps were
produced covering up to the municipal and city level of mapping: one map for each of the two factors (lives; infrastructure and/or
utility) and a combination of the two with respect to 1) each one of the volcanic hazards considered; and 2) the combination of all the
three hazards.