{"id":2056,"date":"2012-08-24T15:11:31","date_gmt":"2012-08-24T06:11:31","guid":{"rendered":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/?page_id=2056"},"modified":"2014-11-25T22:47:02","modified_gmt":"2014-11-25T13:47:02","slug":"topics-080111","status":"publish","type":"page","link":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/info\/topics\/topics-080111\/","title":{"rendered":"2008\u5e741\u670811\u65e5 \u5ca9\u624b\u770c\u91dc\u77f3\u6c96\u306e\u5730\u9707\uff08M4.7\uff09"},"content":{"rendered":"<p>2008\u5e741\u670811\u65e5 8\u66420\u5206\uff0c\u5ca9\u624b\u770c\u91dc\u77f3\u6c96\u306e\u30d7\u30ec\u30fc\u30c8\u5883\u754c\u3092\u9707\u6e90\u3068\u3059\u308bMj4.7\u306e\u5730\u9707\u304c\u767a\u751f\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u5730\u9707\u306f\u3001\u898f\u6a21\u306e\u5927\u304d\u306a\u5730\u9707\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u3042\u3089\u304b\u3058\u3081\u305d\u306e\u898f\u6a21\u304a\u3088\u3073\u767a\u751f\u6642\u671f\u304c\u4e88\u6e2c\u3055\u308c\u3066\u3044\u305f\u3068\u3044\u3046\u70b9\u3067\u5927\u304d\u306a\u610f\u5473\u3092\u6301\u3064\u5730\u9707\u3067\u3059\u3002<\/p>\n<h2>\u5ca9\u624b\u770c\u91dc\u77f3\u6c96\u306e\u5730\u9707\u6d3b\u52d5\u306b\u3064\u3044\u3066<\/h2>\n<p>\u5ca9\u624b\u770c\u91dc\u77f3\u6c96\u306e\u6df1\u3055\u7d0450km\u306e\u30d7\u30ec\u30fc\u30c8\u5883\u754c\u3067\u306f\uff0cM4.9&plusmn;0.1\u306e\u5730\u9707\u304c\u7d045.5\u5e74\u9593\u9694\u3067\u975e\u5e38\u306b\u898f\u5247\u7684\u306b\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u898f\u5247\u6b63\u3057\u3044\u5730\u9707\u304c\u8d77\u3053\u308b\u7406\u7531\u306f\uff0c\u3053\u306e\u5730\u9707\u306e\u5468\u8fba\u306e\u30d7\u30ec\u30fc\u30c8\u5883\u754c\u3067\u307b\u307c\u4e00\u5b9a\u306e\u901f\u5ea6\u3067\u306e\u3086\u3063\u304f\u308a\u3068\u3057\u305f\u3059\u3079\u308a\u304c\u9032\u884c\u3057\u3066\u304a\u308a\uff0c\u305d\u306e\u4e2d\u306e1km\u307b\u3069\u306e\u5927\u304d\u3055\u306e\u56fa\u7740\u57df\uff08\u3072\u3063\u304b\u304b\u308a\uff09\u304c\u5468\u308a\u306e\u3059\u3079\u308a\u306b\u8ffd\u3044\u3064\u3053\u3046\u3068\u5b9a\u671f\u7684\u306b\u3059\u3079\u308b\uff08\u5730\u9707\u3092\u8d77\u3053\u3059\uff09\u305f\u3081\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u8d77\u3053\u3063\u305f\u5730\u9707\u306f\uff0c2001\u5e7411\u6708\u4ee5\u6765\uff0c6.16\u5e74\u3076\u308a\u306b\u767a\u751f\u3057\u305f\u5730\u9707\u3067\u3042\u308a\uff0c<span style=\"color:#ff0000;\">Matsuzawa et al. \uff082002\uff09 \u304c2009\u5e742\u6708\u307e\u3067\u306b\u767a\u751f\u3059\u308b\u3068\u4e88\u6e2c\u3057\u3066\u3044\u305f\u671f\u9593\u5185\u306b\u767a\u751f\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\n<p><a href=\"\/wp-content\/uploads\/2012\/08\/topics-080111-yochiren1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2063\" title=\"topics-080111-yochiren1\" src=\"\/wp-content\/uploads\/2012\/08\/topics-080111-yochiren1.jpg\" alt=\"\" width=\"350\" height=\"335\" \/><\/a><\/p>\n<p>\u56f3\uff11\uff0e1926\u5e74-1998\u5e74\u306b\u767a\u751f\u3057\u305fM6\u4ee5\u4e0a\u306e\u6d45\u767a\u5730\u9707\u306e\u9707\u592e\u5206\u5e03\u3002\uff08\u7b2c145\u56de\u5730\u9707\u4e88\u77e5\u9023\u7d61\u4f1a\u8cc7\u6599\u3088\u308a\uff09<\/p>\n<p><a href=\"\/wp-content\/uploads\/2012\/08\/topics-080111-yochiren2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2064\" title=\"topics-080111-yochiren2\" src=\"\/wp-content\/uploads\/2012\/08\/topics-080111-yochiren2.jpg\" alt=\"\" width=\"350\" height=\"316\" \/><\/a><\/p>\n<p>\u56f3\uff12\uff0e1995\u5e74-1999\u5e74\u306b\u767a\u751f\u3057\u305f\u5fae\u5c0f\u5730\u9707\uff08h\u226660km\uff09\u306e\u9707\u592e\u5206\u5e03\u3002\u77e2\u5370\u304c\u91dc\u77f3\u6c96\u306e\u5730\u9707\u6d3b\u52d5\u3092\u793a\u3057\u307e\u3059\u3002\uff08\u7b2c145\u56de\u5730\u9707\u4e88\u77e5\u9023\u7d61\u4f1a\u8cc7\u6599\u3088\u308a\uff09<\/p>\n<p><a href=\"\/wp-content\/uploads\/2012\/08\/topics-080111-yochiren3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2065\" title=\"topics-080111-yochiren3\" src=\"\/wp-content\/uploads\/2012\/08\/topics-080111-yochiren3.jpg\" alt=\"\" width=\"500\" height=\"210\" \/><\/a><\/p>\n<p>\u56f3\uff13\uff0e\u91dc\u77f3\u6c96\u306e\u5730\u9707\u6d3b\u52d5\u306e\u6df1\u3055\u5206\u5e03\u3002\u56f3\uff12\u306b\u793a\u3057\u305f\u9818\u57dfAB\u5185\u306e\u5730\u9707\u306e\u6771\u897f\u925b\u76f4\u65ad\u9762\u3092\u793a\u3057\u307e\u3059\u30022008\u5e741\u670811\u65e5\u306e\u5730\u9707\uff08M4.9\uff09\u306e\u4f4d\u7f6e\u3092\u661f\u5370\u3067\u8868\u3057\u307e\u3059\u3002\uff08\u7b2c145\u56de\u5730\u9707\u4e88\u77e5\u9023\u7d61\u4f1a\u8cc7\u6599\u3088\u308a\uff09<\/p>\n<p><a href=\"\/wp-content\/uploads\/2012\/08\/topics-080111-2008MT.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2059\" title=\"topics-080111-2008MT\" src=\"\/wp-content\/uploads\/2012\/08\/topics-080111-2008MT.jpg\" alt=\"\" width=\"428\" height=\"293\" \/><\/a><\/p>\n<p>\u56f3\uff14\uff0e\u5ca9\u624b\u770c\u91dc\u77f3\u6c96\u5730\u9707\u30af\u30e9\u30b9\u30bf\u306eM-T\uff08\u30de\u30b0\u30cb\u30c1\u30e5\u30fc\u30c9-\u6642\u9593\uff09\u56f3\uff0e\u661f\u5370\u304cM4.9\u524d\u5f8c\u306e\u7e70\u308a\u8fd4\u3057\u5730\u9707\u3068\u8003\u3048\u3089\u308c\u308b\u5730\u9707\u3067\uff0c\u4e00\u756a\u53f3\u306e\u3082\u306e\u304c\u4eca\u56de\u767a\u751f\u3057\u305f\u5730\u9707\u3092\u793a\u3057\u307e\u3059\u3002\u4eca\u56de\u306e\u5730\u9707\u306f\u300110\u500b\u76ee\u306e&rdquo;\u91dc\u77f3\u6c96\u5730\u9707&rdquo;\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u30d7\u30ed\u30c3\u30c8\u3057\u305f\u5730\u9707\u306e\u7bc4\u56f2\uff08\u671f\u9593\u3001\u9818\u57df\uff09\u306f\u3001\u56f3\u306e\u4e0a\u306b\u793a\u3057\u307e\u3057\u305f\u3002\u305f\u3060\u3057\u3001M4.9\u524d\u5f8c\u306e\u5730\u9707\u4ee5\u5916\u306b\u3064\u3044\u3066\u306f\u30011976\u5e74\u4ee5\u964d\u306e\u307f\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u4ed9\u53f0\u5e02\u9752\u8449\u5c71\u89b3\u6e2c\u70b9\u306b\u304a\u3051\u308b\u904e\u53bb5\u56de\u306e\u91dc\u77f3\u6c96\u5730\u9707\u306e\u6ce2\u5f62\u306e\u6bd4\u8f03<\/h2>\n<p><a href=\"\/wp-content\/uploads\/2012\/08\/topics-080111-AOB-hakei.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2060\" title=\"topics-080111-AOB-hakei\" src=\"\/wp-content\/uploads\/2012\/08\/topics-080111-AOB-hakei.jpg\" alt=\"\" width=\"669\" height=\"476\" \/><\/a><\/p>\n<p>\u56f3\uff15\uff0e\u4ed9\u53f0\u5e02\u9752\u8449\u5c71\u89b3\u6e2c\u70b9\uff08\u9707\u592e\u8ddd\u96e2\u7d04160km\uff09\u3067\u89b3\u6e2c\u3055\u308c\u305f\u91dc\u77f3\u6c96\u5730\u9707\u306e\u6ce2\u5f62\u3002\u4e0a\u4e0b\u52d5\u6210\u5206\u306e\u6ce2\u5f62\u3092\u793a\u3057\u307e\u3059\u3002\u904e\u53bb5\u56de\u306e\u5730\u9707\u306b\u3088\u308b\u6ce2\u5f62\u306f\u3068\u3066\u3082\u3088\u304f\u4f3c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5730\u9707\u306f\u5171\u901a\u306e\u7834\u58ca\u57df\u3092\u3082\u3064\u5730\u9707\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2>\u5e83\u5e2f\u57df\u5730\u9707\u8a08\u3067\u89b3\u6e2c\u3055\u308c\u305f1995, 2001, 2008\u5e74\u306e\u6ce2\u5f62\u306e\u6bd4\u8f03<\/h2>\n<p><a href=\"\/wp-content\/uploads\/2012\/08\/topics-080111-KGJ-DIT-HMK-hakei.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2061\" title=\"topics-080111-KGJ-DIT-HMK-hakei\" src=\"\/wp-content\/uploads\/2012\/08\/topics-080111-KGJ-DIT-HMK-hakei.gif\" alt=\"\" width=\"350\" height=\"601\" \/><\/a><\/p>\n<p>\u56f3\uff16\uff0eKGJ\uff08\u9060\u91ce\uff09, DIT\uff08\u5927\u6771\uff09, HMK\uff08\u59eb\u795e\uff09\u5404\u89b3\u6e2c\u70b9\u306b\u304a\u3051\u308b\uff0c1995, 2001, 2008\u5e74\u306e\u5730\u9707\u306e\u6ce2\u5f62\uff08\u30d0\u30f3\u30c8\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\u4f7f\u7528\uff09\u3092\u793a\u3057\u307e\u3059\u3002\u6ce2\u5f62\u306e\u5168\u4f53\u7684\u306a\u7279\u5fb4\u306f\u4f3c\u3066\u3044\u307e\u3059\u304c\uff0cP\u6ce2\u306e\u90e8\u5206\u3092\u898b\u308b\u3068\uff0c2001\u5e74\uff0c2008\u5e74\u306e\u5730\u9707\u540c\u58eb\u306e\u65b9\u304c\u6ce2\u5f62\u306e\u76f8\u4f3c\u6027\u304c\u3088\u308a\u3088\u304f\uff0c\u305d\u308c\u306b\u5bfe\u3057\uff0c1995\u5e74\u306e\u5730\u9707\u3067\u306f\uff0cP\u6ce2\u5230\u7740\u5f8c\u7d04\uff11\u79d2\u5f8c\u306b\uff0c2001\u5e74\uff0c2008\u5e74\u306e\u5730\u9707\u3067\u306f\u898b\u3089\u308c\u306a\u3044\u5f8c\u7d9a\u76f8\u304c\u898b\u3089\u308c\u307e\u3059\u3002 1995\u5e74\uff0c2001\u5e74\u306e\u5730\u9707\u306e\u3059\u3079\u308a\u57df\u306e\u5e83\u304c\u308a\u306f\u307b\u307c\u91cd\u306a\u308b\uff08Okada et al., 2003\uff09\u3053\u3068\u304b\u3089\uff0c\u91dc\u77f3\u6c96\u306e\u5730\u9707\u306e\u7e70\u308a\u8fd4\u3057\u306f\uff0c\u307b\u307c\u540c\u3058\u30a2\u30b9\u30da\u30ea\u30c6\u30a3\u306e\u7e70\u308a\u8fd4\u3057\u3059\u3079\u308a\u306b\u3088\u308b\u3082\u306e\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u305f\u3060\u3057\uff0c\u9707\u6e90\uff08\u7834\u58ca\u958b\u59cb\u70b9\uff09\u3068\u3059\u3079\u308a\u91cf\u5206\u5e03\u306e\u30d4\u30fc\u30af\u3068\u306e\u8ddd\u96e2\u306f1995\u5e74\u306e\u5730\u9707\u306e\u65b9\u304c\u5927\u304d\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u89b3\u6e2c\u6ce2\u5f62\u306e\u9055\u3044\u306f\u9707\u6e90\uff08\u7834\u58ca\u958b\u59cb\u70b9\uff09\u306b\u5bfe\u3059\u308b\u3059\u3079\u308a\u91cf\u5206\u5e03\u306e\u9055\u3044\u3092\u53cd\u6620\u3057\u3066\u3044\u308b\u3082\u306e\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u306e\u3067\uff0c2008\u5e74\u306e\u5730\u9707\u306f2001\u5e74\u306e\u5730\u9707\u306b\u3088\u308a\u8fd1\u3044\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2>2008\u5e741\u670811\u65e5\u306e\u5730\u9707\u304a\u3088\u3073\u305d\u306e\u5468\u8fba\u306e\u5730\u9707\u306e\u9707\u6e90\u5206\u5e03\uff08\u66ab\u5b9a\u7248\uff09<\/h2>\n<p><a href=\"\/wp-content\/uploads\/2012\/08\/topics-080111-xyxz1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2062\" title=\"topics-080111-xyxz1\" src=\"\/wp-content\/uploads\/2012\/08\/topics-080111-xyxz1.jpg\" alt=\"\" width=\"700\" height=\"327\" \/><\/a><\/p>\n<p>\u56f3\uff17\u30002008\u5e741\u670811\u65e5\u306e\u5730\u9707\uff08M4.7\uff0c\u8d64\u4e38\uff09\u3068\u305d\u306e\u5468\u8fba\u306e\u5730\u9707\uff08\u9ed2\u4e38,1995-2008\u5e74\uff09\u306e\u5206\u5e03\u3002\u5de6\u306f\u5e73\u9762\u56f3\uff0c\u53f3\u306f\u6771\u897f\u65ad\u9762\u56f3\u3067\uff0c\u6ce2\u5f62\u306e\u76f8\u95a2\u3092\u7528\u3044\u305fDouble-difference\u6cd5\u306b\u3088\u308a\u6c7a\u5b9a\u3057\u307e\u3057\u305f\u3002\u4e38\u306e\u5927\u304d\u3055\u306f\uff0c\u304a\u304a\u3088\u305d\u306e\u65ad\u5c64\u30b5\u30a4\u30ba\uff08\u5fdc\u529b\u964d\u4e0b\u91cf380bar\u3092\u4eee\u5b9a\uff09\u3092\u793a\u3057\uff0c\u305d\u306e\u4e2d\u5fc3\u306f\u30e2\u30fc\u30e1\u30f3\u30c8\u958b\u653e\u306e\u4e2d\u5fc3\uff08\u3059\u3079\u308a\u306e\u91cd\u5fc3\uff09\u3092\u793a\u3057\u307e\u3059\u3002\u4eca\u56de\u767a\u751f\u3057\u305f\u5730\u9707\u306f\uff0c1995\u5e74\u306e\u5730\u9707\uff08M5.0, \u4e00\u756a\u5927\u304d\u3044\u4e38\uff09\u304a\u3088\u3073 2001\u5e74\u306e\u5730\u9707\uff08M4.8, \u4e8c\u756a\u76ee\u306b\u5927\u304d\u3044\u4e38\uff09\u3068\u307b\u307c\u540c\u3058\u4f4d\u7f6e\u3067\u767a\u751f\u3057\u305f\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\uff081995\u5e74\uff0c2001\u5e74\uff0c2008\u5e74\u306e\u5730\u9707\u306e\u30e2\u30fc\u30e1\u30f3\u30c8\u958b\u653e\u306e\u4e2d\u5fc3\u306f\uff0c\u76f4\u5f8466m\u306e\u7bc4\u56f2\u306b\u6c42\u307e\u308a\u307e\u3057\u305f\uff09\u3002\u65ad\u9762\u56f3\u3092\u898b\u308b\u3068\uff0c\u5730\u9707\u306f\uff0c\u6771\u4e0b\u304c\u308a\u306e\u30d7\u30ec\u30fc\u30c8\u5883\u754c\u4e0a\u3068\u601d\u308f\u308c\u308b\u9762\u4e0a\uff08\u7834\u7dda\uff09\u306b\u5206\u5e03\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u3059\u308b\u7814\u7a76\u6210\u679c<\/h2>\n<ul>\n<li>Uchida, N., T. Matsuzawa, W. L. Ellsworth, K. Imanishi, T. Okada, and A. Hasegawa, Source parameters of a M4.8 and its accompanying repeating earthquakes off Kamaishi, NE Japan &#8211; implications for the hierarchical structure of asperities and earthquake cycle, Geophys. Res. Lett., 34, doi:10.1029\/2007GL031263, 2007.<\/li>\n<li><a href=\"http:\/\/dx.doi.org\/10.1016\/j.epsl.2005.01.022\">Uchida, N., T. Matsuzawa, A. Hasegawa, and T. Igarashi, Recurrence intervals of characteristic M4.8+\/-0.1 earthquakes off Kamaishi, NE Japan &#8211; Comparison with creep rate estimated from small repeating earthquake data, Earth Planet. Sci. Lett., 233, 155-165, doi:10.1016\/j.epsl.2005.01.022, 2005<\/a>.<\/li>\n<li>Okada, T., K. Sakoda, T. Matsuzawa, R. Hino, A. Hasegawa, S. Sakai, and T. Kanazawa, Characteristic seismic activity in the subducting plate boundary zone off Kamaishi, northeastern Japan, revealed by precise hypocenter distribution analysis using ocean-bottom seismometers, Geophys. Res. Lett., 31, doi:10.1029\/2004GL020366, 2004.<\/li>\n<li><a href=\"http:\/\/dx.doi.org\/10.1016\/S0012-821X%2803%2900299-1\">Okada T., T. Matsuzawa, and A. Hasegawa, Comparison of source areas of M4.8+-0.1 earthquakes off Kamaishi, NE Japan &#8211; Are asperities persistent feature?, Earth Planet. Sci. Lett., 213, 361-374, doi:10.1016\/S0012-821X(03)00299-1, 2003.<\/a><\/li>\n<li>Matsuzawa T., T. Igarashi, and A. Hasegawa, Characteristic small-earthquake sequence off Sanriku, northeastern Honshu, Japan , Geophys. Res. Lett., 29, doi:10.1029\/2001GL014632, 2002.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>2008\u5e741\u670811\u65e5 8\u66420\u5206\uff0c\u5ca9\u624b\u770c\u91dc\u77f3\u6c96\u306e\u30d7\u30ec\u30fc\u30c8\u5883\u754c\u3092\u9707\u6e90\u3068\u3059\u308bMj4.7 &hellip; <a href=\"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/info\/topics\/topics-080111\/\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":182,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/pages\/2056"}],"collection":[{"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/comments?post=2056"}],"version-history":[{"count":9,"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/pages\/2056\/revisions"}],"predecessor-version":[{"id":4567,"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/pages\/2056\/revisions\/4567"}],"up":[{"embeddable":true,"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/pages\/182"}],"wp:attachment":[{"href":"http:\/\/cms1.aob.geophys.tohoku.ac.jp\/wp-json\/wp\/v2\/media?parent=2056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}