Insurance rate variation based on earthquake probability

摘要

Disclosed is an insurance premium rate setting support system composed of a computer, and including: a probability-increase/strong-influence location coefficient setting section which, if an inputted location covered by earthquake insurance is specified as a probability-increase/strong-influence location located in any one of an area for which an earthquake occurrence probability has increased to not less than a predetermined probability based on estimated strain accumulation along at least one of a plate boundary and a fault due to a period having elapsed since a past earthquake occurrence, and an area having a risk of being strongly influenced by an earthquake occurrence in the area for which the earthquake occurrence probability has increased to not less than the predetermined probability, sets a probability-increase/strong-influence location coefficient by obtaining the coefficient based on a predetermined function whereby the coefficient increases in a stepwise manner following an increasing characteristic of an earthquake occurrence probability with respect to a period having elapsed since the past earthquake occurrence in the location covered by the earthquake insurance; and an earthquake insurance premium rate computation section which computes an insurance premium rate where an increase in the earthquake occurrence probability, based on the estimated strain accumulation, is reflected, by multiplying together the set probability-increase/strong-influence location coefficient and an insurance premium rate where the increase in the earthquake occurrence probability, based on the estimated strain accumulation, is not reflected.