昆明—楚雄—大理—丽江地区地震软风险区划实例

Case study on soft risk zoning of earthquake disaster in Kunming-Chuxiong-Dali-Lijiang of Yunnan Province

应用云南省昆明市、楚雄州、大理州、丽江市1900-2000年这100年内M≥5.0的地震记录资料,对该地区的地震灾害软风险区划进行了实例分析。结果表明,软风险区划图是以带有“层”结构的地图形式表述风险评估结果的,而“层”是根据可能性水平来划分的。因此,软风险区划图对分析结果的表述,不仅能对风险分析提供更多的信息,而且能提供风险值可信度的信息,从而使风险图“服务信息”丰富化。

This paper makes a case study on the soft risk zoning of earthquake disaster in Kunming-Chuxiong-DaliLijiang of Yunnan Province by using the earthquake records of M≥5.0 from 1900 to 2000. The study shows that soft risk map represents the results of risk assessments by a kind of map with ＂layer structure＂. The layer is decid- ed according to the level of possibility. Soft risk map not only can afford more risk information, but also can afford the information of reliability respect to risk values. As a result, soft risk zoning can provide more plentiful service information.