Role mode combination decision Waspas in Identify zoning Seismic
(Case study: Population center, township Bahmaei in Kohgiluyeh and Boyerahmad province)
Hossein,Hosseinekhah[1], Asghar Zarrabi [2], Hamid Reza Varsi[3]
According placement Country of iran On the belt earthquake Alpine - Himalayas and Placement Partial of Iran Plateau Between two pages of Saudi Arabia (south) And Eurasia (north) And consequently the existence of active faults And the existence of seismic point And most importantly, record high intensity earthquakes, Etc in the township of Bahmei, in The present study will try, with Using the WASPA model, Identified and reviewed The Seismic zones. The main purpose of this study is Identify and zoning Earthquake risk in township Bahmaei and Secondary objectives research:
- Review and Assessment City Likak against earthquake risk.
- Identify and zoning district township Bahmaei against the danger of earthquakes.
- provide strategies to Reduce Damage and and physical and financial vulnerabilities of citizens.
According the nature of the subject and research objectives, Research Methodology Based on descriptive – analytical and functional. Collect dates provided in two part, weights and layers of information, based on Documentary method and using satellite images, Mapping organization, USGS organization. The statistical population of the research, the entire limits township Bahmaei based on dividing the national. Indicators used in the study, 10 key indicators, including Active faults, seismic areas, rivers, urban and rural settlements, the elevation, slope and more. To collect data Of the America Geological organization, National mapping organization, Satellite imagery and as well as to review and analyze data used is of ARC GIS software and Wapas model.
Results of the research show that from area 1245 square kilometers of Bahmei Township, there are 252.228 square kilometers, equivalent to 20 percent of the Township in an unsafe zone. 149 square kilometers equivalent to 12 percent is in the high risk zone and 167 square kilometers, equivalent to 13 percent in area with the high-risk. Also, of the area of 1245 square kilometers in the Township of Bahmei 386 square kilometers, equivalent to 31 percent is in the zone with low risk of the earthquake. The final weights achieved by each Propeller (weaknesses, strengths, opportunities and threats) in a separate and individual weighting with one another, have dominance of the dominating role of the matrix threat.
Results Research shows, 252 square kilometers, equivalent to 40 perecnt of Bahmaei township in zone safe, 386 square kilometers in the zone with low-risk, 289 square kilometers of the township In the zone with middle danger, 149 square kilometers of the township Equivalent with 12 percent of the township In zone with high risk and 167 square kilometers, equivalent to 13 percent is in the zone whit high-risk of the earthquake
The city Likak as Bahmaei township center is in zone with low very risk Compared to the risk of earthquakes. Also The results showed The 160 sq. Km of The central part of township Equivalent to 18 percent in zone with low-risk And 137 square kilometers, equivalent to %15 in zone whit high risk and 15 percent of central city The zone have very high hazard. Also the results showed of area 506 square kilometers Section Garmsar, 30 percent in the zone safe, %44 in the zone with low risk and 6 percent is in zone with the very high risk. The also results showed that 15 villages and villages (6%) are very vulnerable, 20 villages (8.43%) are in high danger zones and 112 villages are in zone with low risk.
Keywords: Waspas model, earthquake, Likak city, township Bahmae.
