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源于地球深部的跳动——探解汪清7.2级深震之谜


来源:中国地震局  作者:防灾所  时间:2020年06月29日  阅读次数:打印】【关闭

ZHONGGUOKEXUEYUANDIZHIYUDIQIUWULIYANJIUSUO CHENQIFU

  YUNNANSHENGDIZHENJU  JIANGJINZHONG

2002NIAN6YUE29RI1SHI19FEN,WOGUOJILINSHENGWANGQINGXIANFASHENG7.2JISHENZHEN,ZHENYUANSHENDU540 km。GAIZHENYU7JIQIANYUANDIZHENJIFADEDIZHENNENGLIANGHEZHENDONGBOXINGJIBENYIZHI,ZAIJINGGUOSHUBAIZHISHANGQIANQIANMIDENENGLIANGSHUAIJIANHOU,DAODADONGBEIQUANJINGHEHUABEIBUFENDIQUSHISUIRENGYOUWEIXIAOZHENDONG,DANBINGWEIJINGXINGWEIYUGAIZHENSHANGFANGDEWANGQINGZHOUBIANJUMIN。YU7JIQIANYUANDIZHENCHANGCHANGZAOCHENGDALIANGRENYUANSHANGWANGHEZHONGDAJINGJISUNSHIXIANGBI,WANGQINGSHENZHENWEIZAOCHENGRENYUANSHANGWANGHEJIANZHUWUPOHUAI。

YI、WANGQING7.2JISHENZHENFASHENGDEWEIZHI

SHENZHENSHIZHIZHENYUANSHENDUDAYU70 km(YEYOURENWEISHIDAYU60 km),SHENDUXIAOYU70 kmHUO60 kmDEZECHENGWEIQIANZHEN(QIANYUANDIZHEN),SHENDUZAI70~300 kmHUO60~300 kmDEDIZHENBEICHENGWEIZHONGYUANDIZHEN,SHENDUDAYU300 kmDEWEISHENYUANDIZHEN。ZHONGYUANDIZHENHESHENYUANDIZHENJINGCHANGBEILONGTONGDECHENGWEISHENZHEN,YOUXIEYANGEDEXUEZHEZEJINJIANGSHENDUDAYU300 kmDEDIZHENCHENGWEISHENZHEN。

CONGXIATUKAN,WANGQINGSHENZHENFASHENGZAITAIPINGYANGBANKUAIFUCHONGZHIZHONGGUODONGBEIXIAFANGDERIBENFUCHONGDAISHANG,ZHONGGUODONGBEIYIDAIDESHENZHENHUODONGKEYICONGJIN600 kmDESHENCHULIANXUXIANGSHANGHEXIANGDONGZHUIZONGZHIRIBENHAIGOUFUJINDEQIANYUANDIZHEN,SHIFENMINGXIANDIZHANXIANCHUTAIPINGYANGBANKUAIXIANGOUYADALUBANKUAIFUCHONGCHARUZHONGGUODONGBEIDALUXIAFANGYUE600 kmSHENDUDETUXIANG。GEZHONGCHIDUDEDIZHENCENGXICHENGXIANGJIEGUOYEDOUXIANSHIZHONGGUODONGBEIYIDAIDESHENYUANDIZHENYURIBENHAISHENZHENJUYOUHENHAODELIANXUXINGBINGFASHENGZAIXITAIPINGYANGFUCHONGBANPIANDEGAOSUYICHANGTINEIBU。TUZHONGLANSEXINGHAOCHUJIQILIANXIANFENBIEJICHULEWANGQING7.2JISHENZHENDEWEIZHIHEZHENYUANJIZHIJIE。

  

彩票平台  RIBENHAIGOUZHIZHONGGUODONGBEIDEPOUMIANLIANGCE300 kmFANWEINEIDEDIZHENSHENDUFENBULANTU

彩票平台TUZHONGLANSEXINGHAOCHUJIQILIANXIANFENBIEJICHU2002NIAN6YUE29RIWANGQING7.2JISHENZHEN、2011NIAN5YUE10RIZHONGGUODONGBEIZHONGEBIANJIECHU6.1JISHENZHENHE2011NIAN3YUE11RIRIBENDONGBEI9.0JIQIANZHENDEWEIZHIHEZHENYUANJIZHIJIE;

彩票平台TUSHANGFANGHUACHULEPOUMIANYANXIANDELUDIHEHAIYANGDIXINGXINGTAI

ER、SHENZHENYUQIANZHENDESIYUBUSI

彩票平台QIJINWEIZHI,RENLEIJILUDAODEZUIDASHENYUANDIZHENSHI2013NIAN5YUE24RIEHUOCIKEHAI8.3JIDIZHEN(SHENDUYUE607 km)HE1994NIAN6YUE9RIBOLIWEIYA8.3JI(YEYOUBAOGAOSHUOWEI8.2JI)DIZHEN(SHENDUYUE637 km)。RENLEIJILUDAODEZUISHENDEDADIZHENSHI2015NIAN5YUE30RIFASHENGZAIRIBENXIAOLIYUANQUNDAODE7.9JISHENZHEN(RIBENQIXIANGTINGCEDING8.1JI),GUOJIDIZHENZHONGXINZUIZHONGQUEDINGDEZHENYUANSHENDUWEI685.5 km。

  

  GUOJIDIZHENZHONGXIN2020NIAN4YUEFABUDE1904-2016NIANQUANQIUMw6.0DIZHENFENBUTU

ZI1907NIANYOUGUANFAXIANSHENYUANDIZHENDEGUANCEJIEGUOFABIAOHOU,JIUSHOUDAOGUANGFANZHIYI,ZHIZHIHEDAQINGFUTONGGUOYANJIUZHENGSHILESHENYUANDIZHENDECUNZAI,YIJIBEINIAOFUZONGHEDIZHI、DIZHENHEWULIXINXITICHUBEINIAOFUDAI(XIANCHENGWadati-BenioffDAI,JIFUCHONGDAI)LAIJIESHISHENZHENHUODONGTUXIANG,SHENZHENZUOWEIYIZHONG“BUKESIYI”DEXIANXIANGSHIDEDAOJIAOGUANGFANYANJIU。JINBAINIANDEGUANCEYANJIUBIAOMING:TIANRANFASHENGDESHENZHENYUQIANZHENDOUSHUYUGOUZAODIZHEN,SHIRENLEISHENGCUNDEDIQIUSHENBUXIANHUOYUNZHUANZHEDETIXIAN。

  

  JUGUOJIDIZHENZHONGXIN1964-2016NIANDIZHENMULUTONGJIDEDIZHENSHENDUGESHUFENBULANTU

ZONGDELAISHUO,SHENZHENYUQIANZHENSHIFENXIANGSI。SHENZHENYUJUEDADUOSHUQIANZHENDOUSHIYOUJIANQIEBIANXINGYINQIDEPOLIE,ZAIDIZHENPOLIETEZHENGHECONGZHENYUANCHUFUSHECHUDEDIZHENBOTUXIANGYUDIZHENPOLIEQIANHOUDEYINGLICHA(YINGLIJIANG)DENGXUDUOFANGMIANDOUCUNSI,SUIRANSHENZHENYUQIANZHENDEDIZHENFUSHEXIAOLV、DIZHENDUANLIEMIANXINGTAI、DIZHENPOLIESUDUHEPOLIECHIXUSHIJIANJIYINGLIJIANGDENGZAIJUTILIANGZHIBIANHUASHANGYOUSUOCHAYI,QIEYINSHENZHENJIFADEDIZHENBOZAIDIQIUQIANBUDECHUANBOLUJINGJIAODUAN,GUZAIDIZHENBOXINGKEGUANCEDAOSHENZHENDEMIANBOXIANGDUIBUDAFAYUSHENZHIQUESHI,QIESHENZHENDETIBOBOXINGXIANDEBURUQIANZHENBOXINGNEIMEFUZA。CIWAI,SHENZHENYUQIANZHENDOUMANZUZHENJI–PINDUDEGutenberg–RichterTONGJIGUANXI,SHENZHIQIANZHENDEDONGTAICHUFAXIANXIANGHEPOLIEQUYUZHONGDIEDEZHONGFUDIZHENYEZAISHENZHENZHONGGUANCEDAO。

SHENZHENYUQIANZHENCUNZAI3DIANMINGXIANQUBIE:

1.ZAIFAZHENDIDIANHEZHIZAIFANGMIAN,QIANZHENKEFASHENGZAIBAOKUODALUZAINEIDEDIQIUSHANGDABUFENDIQU,YINER6JIYISHANGSHENZHI5JIQIANZHENCHANGCHANGZAOCHENGDALIANGRENYUANSHANGWANGHEJINGJISUNSHI,ERSHENZHENZEJINFASHENGZAIBANKUAIFUCHONGXIACHADEFUCHONGDAISHANG,GUSHENZHENSHAOYOUZAOCHENGRENYUANSHANGWANGHEJINGJISUNSHIDEBAODAO,DANSHENDUJIAOQIANDESHENZHENHAISHICUNZAIYIDINGPOHUAIXING。

2.SHENZHENMINGXIANSHAOYUQIANZHEN,ZUIMINGXIANDEQUBIESHISHENZHENDEYUZHENSHULIANGHENSHAO。ZAIDIZHENZHENJIXIANGTONGDEQINGKUANGXIA,SHENZHENDEYUZHENSHULIANGBIQIANZHENDEYAOSHAO1GEHUOGENGDUOGESHULIANGJI,QIEZHONGYUANDIZHENDEYUZHENSHULIANGYOULVESHAOYUSHENYUANDIZHEN。ZAIJIAOLENGDEFUCHONGDAI(RUTANGJIA、YINDUNIXIYAHEMALIYANAFUCHONGDAI)CUNZAIXIANZHUDESHENZHENYUZHENHUODONG,ERXIANGDUIJIAOREDEFUCHONGDAI(RUNANMEI、RIBENHEYIDOU-XIAOLIYUANFUCHONGDAI)DESHENZHENYUZHENHUODONGZEJIAOSHAO。

3、JUQUANQIUJUZHANGLIANGgCMTJICHUDEDIZHENZHENYUANJIZHIJIE,SHENZHENYUQIANZHENDEZHENYUANZHUYAOWEISHUANGLIOUJIANQIEYUAN,DANYOUHENDABUFENDESHENZHENDOUHANYOUSHIFENMINGXIANDEFEISHUANGLIOUJIANQIEDUANLIECHENGFEN,JIBUCHANGXIANXINGSHILIANGOUJI(CLVD)CHENGFEN。

SAN、DAIJIESHENZHENZHIMI

DUIHAIYANGYANSHIQUANDEQIANZHENHUODONGFENXIBIAOMING:QIANZHENJINFASHENGZAIWENDU≤700 ℃DEHUANJINGXIA。SHIYANYANJIUXIANSHI:SUIZHEWENDUHEYALIZENGDA,YANSHIDELIUBIANXUEQIANGDUHUIJIANGDIDAOZHIFASHENGSUXINGLIUDONGDECHENGDU,YINGLIZUOYONGDEYANSHISHIWENYOUCUIXINGPOLIEZHUANBIANWEIRENXINGRUBIAN。YIJUDIQIUSHENDUDEWENDUHEYALITIAOJIAN,ZHENGCHANGDECUIXINGPOLIEHUOHUADONGZAICHAOGUO 60~100 kmSHENDUJIUBIANDEJIWEIKUNNAN,ZHEIZHENGSHI20SHIJI20NIANDAIGUANGFANZHIYISHENYUANDIZHENHUODONGCUNZAIDEYUANYIN。RANER,ZAIJIHUBUKENENGFASHENGYANSHICUIXINGPOLIEDECHAOGUO100 kmDIQIUSHENCHU,CUNZAISHENZHENHUODONGSHIWUKEZHIYIDEGUANCESHISHI,YINERSHENZHENDECHENGYINJIZHIYUSHENZHENHUODONGWEIHEHUIZHONGZHIZAIYUE680 kmSHENDUCHURENGSHIDAIJIEZHIMI。

MUQIANZHENGLUNJIAODUODESHENZHENDEKENENGCHENGYINJIZHIKEGUIWEISANZHONG:TUOSHUICUILIE、GANLANSHIXIANGBIANYINQIDEFANLIEXIDUANCENGHUOXIANGBIANDUANCENGZUOYONG、REJIANQIESHIWENZUOYONG。YUELAIYUEDUODESHIYANYANJIUHEYANSHIXUE、DIZHENXUEGUANCEDOUQINGXIANGRENWEI:TUOSHUICUILIEKEJIAOHAOJIESHIZHONGYUANDIZHENCHENGYIN,DANYITICHUDEGEZHONGKENENGJIZHIZAIJIESHISHENYUANDIZHENCHENGYINSHIDOUCUNZAIGEZIBUZU,SHANGWUDANYIDEWULIJIZHIKEJIESHISUOYOUSHENDUDAYU100 kmHUO200 kmSHENZHENHUODONGDEDIZHENXUETEZHENG。YANJIUBIAOMING:JINKAOXIANGBIANZUOYONGWUFAWANQUANJIESHISHENYUANDIZHENZHENYUANQUDEGEXIANGYIXING,FUCHONGBANPIANZHONGDELINGMEIKUANGHUOTANSUANYANYANRONGRONGYEKENENGHUIYINQISHENYUANDIZHENFASHENG。YOUYUSHENYUANDIZHENDEFAZHENJIZHI、POLIEGUOCHENGJIQIFUZAQIEKENENGSHIDONGTAIBIANHUADE,YINCIBUTONGZHENYUANSHENDU、BUTONGFUCHONGDAIHEBUTONGDAXIAODESHENYUANDIZHENFAZHENJIZHIYEKENENGBUTONG,SHENZHIKENENGYOUDUOZHONGJIZHIGONGTONGZUOYONGSUOZHI。

彩票平台GENJUBUTONGFUCHONGDAIDESHENYUANDIZHENGutenberg–RichterGUANXIZHONGDEbZHICHAYI,TICHUSHENYUANDIZHENDE“SHUANGJIZHI”JIASHE:SHENYUANDIZHENZAIFUCHONGBANPIANDEYAWENTAIGANLANYANXIEXINGQU(Metastable Olivine Wedge, MOW)NEIBUZHUYAOYIXIANGBIANDUANCENGZUOYONGFANGSHICHENGHEBINGKAISHIPOLIE,DANPOLIEZAITUPOMOWHOUYIREJIANQIERONGRONGHUORETAOYIDEXINGSHIXIANGWAICHUANBO;ZAIJIAOREFUCHONGDAIDEBOMOWQUNEI,“SHUANGJIZHI”GONGTONGFASHENGZUOYONG。JINGDINGWEIDESHENYUANDIZHENJIEGUOBIAOMING:MOWQUESHICUNZAIYURIBENHAIJIZHONGGUODONGBEIDIQUXIAFANGDEFUCHONGBANPIANNEI,MOWHOUDUZIYUE450 kmSHENDUCHUDE50 kmZHUJIANJIANBOZHIYUE580 kmSHENDUCHUDEJIQIANMI。WANGQINGFUJINDEDADUOSHUSHENZHENDOUFASHENGZAIJiangDENGJICHUDEMOWNEIHUOZHOUBIANQUYU,GURENWEISHENYUANDIZHENDE“SHUANGJIZHI”JIASHEKEYIJIAOHAOJIESHIZHONGGUODONGBEIDIQUDEMw≤6.5SHENYUANDIZHENCHENGYIN,DANJINYOUXIANTAIZHANGUANCEZILIAOYUESHUDE2002NIANWANGQING7.2JISHENZHENDEWULICHENGYINRENGYOUDAITANSUOYANJIU。

彩票平台500DUOQIANMISHENCHUFASHENGDEWANGQING7.2JISHENZHEN,JIUXIANGRENDEXINZANGTIAODONGYIYANGSHIDIQIUNEIBUHUOYUEDEBIAOZHENG。SHENZHENHUODONGYUBANKUAIFUCHONGJIQIXIANGBANSHENGDETIXIMIQIEXIANGGUAN,SHENZHENDEFASHENGWEIRENMENTANCEDIQIUSHENBUDIHEHEDIMANJIEGOUTIGONGLEBUKEHUOQUEDEXINXI。JINBAINIANLAIDEYANJIURENGMEINENGJICHULINGRENWANQUANXINFU、ZIQIADESHENYUANDIZHENFAZHENJIZHI,SHENZHENZHIMIYIRANDAIJIE。

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