13. 2006年ジャワ島中部地震の被害分布と震度の推定(E.突発災害,事故,一般論文発表)

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The 2006 Central Java earthquake (M=6.3) occurred in Special State of Yogyakarta in Indonesia on May 27. In this earthquake, more than 5,700 human lives were lost, 36,000 people were injured, and 140,000 dwellings were completely destroyed. The authors joined a reconnaissance team from Kyushu University from 20 thru 26 June and collected damage statistics of human casualty, dwelling damages and school damages from local administrations, observed damage patterns of various dwellings and buildings in disaster area and conducted questionnaire survey to evaluate seismic intensity. The results indicate that dwelling collapse and human loss were severest along 18km NNE-SSW direction in Pleret, Jetis, and Pundong sub-districts of Bantul district, reaching 60% dwelling collapse and 1.6% human loss. School damage was more serious for elementary schools of mostly URM buildings than junior high and senior high schools. Seismic intensity in MSK scale were estimated for 17 locations based on fuzzy membership functions of intensity coefficients assigned for each item category. Maximum intensity of 8.6 is estimated for a village most severely devastated and it decreases towards west direction along the microtrcmore observation lines, and it agrees with our field observation of damage degrees. Questionnaire results show that dwelling collapse caused human entrapment and human loss and that brick masonry dwellings sustained heavier damage compared to RC and timber frame dwellings in the same neighborhood.

13. 2006年ジャワ島中部地震の被害分布と震度の推定(E.突発災害,事故,一般論文発表)

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