南北地震带地震活动特征
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摘要
采用数理统计方法探讨了780 BC至今、100°—110°E、22°—35°N(中国南北地震带)区域的中国大陆5.0级及以上天然地震的分布规律。通过GMT软件绘制了南北地震带上地震震中和断裂分布图像,分析了南北地震带地震时空分布与地震活动性的规律。研究表明,该地区的大震与强震几乎全部发生在断裂带上,地震频次高、震中密集,呈现集群性等特征,地震活动性较高。该地震带中、南段相似,与北段存在显著差异。在南北地震带上,地震的活跃幕与平静幕持续时间,与活跃幕强度有关。研究结果对于了解地震的时空分布特征,认识中国南北地震带的发震规律,地震的孕震发震和地震活动周期有参考意义。
In this paper,the distribution law of natural earthquakes from 780 BC to the present with magnitude of MS5 and larger at region of longitude 22°—35° and latitude of 100° to 110°(China's north and south seismic belt) was discussed by means of mathematical statistics. The whole transfer image of strong earthquakes in this area is plotted by GMT software,and the regularity of seismicity in north-south seismic belt is analyzed. The study shows that the large and strong earthquakes in this area all occurred on the fault zone,with high earthquake frequency,dense epicenter,clustered characteristics,and high seismic activity. The south-central segment of the seismic zone is similar,with significant differences from the northern segment. In the north-south seismic belt,the duration of the active and calm events of the earthquake is related to the intensity of the active curtain. The results provide a meaningful reference to understand the characteristics of the temporal and spatial distribution of earthquakes,the seismogenic laws of China's north and south seismic belt,and the seismogenic and earthquake-producing periods of earthquakes.
In this paper,the distribution law of natural earthquakes from 780 BC to the present with magnitude of MS5 and larger at region of longitude 22°—35° and latitude of 100° to 110°(China's north and south seismic belt) was discussed by means of mathematical statistics. The whole transfer image of strong earthquakes in this area is plotted by GMT software,and the regularity of seismicity in north-south seismic belt is analyzed. The study shows that the large and strong earthquakes in this area all occurred on the fault zone,with high earthquake frequency,dense epicenter,clustered characteristics,and high seismic activity. The south-central segment of the seismic zone is similar,with significant differences from the northern segment. In the north-south seismic belt,the duration of the active and calm events of the earthquake is related to the intensity of the active curtain. The results provide a meaningful reference to understand the characteristics of the temporal and spatial distribution of earthquakes,the seismogenic laws of China's north and south seismic belt,and the seismogenic and earthquake-producing periods of earthquakes.
引文
[1]邓小武.粘滞阻尼消能减震结构的抗震性能分析及应用[D].武汉:长江大学,2012
[2]邓起东,张培震,冉勇康,等.中国活动构造基本特征[J].中国科学(D辑),2002,32(12):1020-1030
[3]张家声,李燕,韩竹均.青藏高原向东挤出的变形响应及南北地震带构造组成[J].地学前缘,2003,10(S1):168-175
[4]陈文德.中国南北地震带1900年以来强震的时空分布特征及其预报意义[J].四川地震,1997(3):17-22
[5]范燕,车兆宏.南北地震带北段及其两侧断层现今活动性[J].地震,2001,21(2):87-93
[6]祝意青,王双绪,程宏宾,等.南北地震带强震活动的时空关联现象探讨[J].西北地震学报,2003,25(2):179-182
[7]程万正.南北地震带地震转移图像与趋势预测[J].地震,2005,25(1):1-7
[8]汪一鹏,马瑾,李传友.南北地震带强震迁移特征及其与南亚地震带的联系[J].地震地质,2007,29(1):1-14
[9]杨兴悦,杨立明,陈继峰,等.南北地震带南北段地震迁移现象[J].地震地磁观测与研究,2012,33(2):7-12
[10]李成帅,杨建思,郑钰,等.南北地震带及邻近区域强震时空分布特征[J].地震地磁观测与研究,2013,34(3):24-31
[11]严武建,屠泓为,代炜.南北地震带7级以上地震的中期预测研究[J].高原地震,2008,20(4):14-20
[12]阎志德.论中国南北地震带强震活动特征及其地震强度与构造类型的关系[J].中国科学(B辑),1986(3):311-320
[13]韩守琪.南北地震带地震活动分析[J].内陆地震,1998,12(1):36-43
[14]Savage J C.A theory of creep waves propagating along a transform fault[J].J.Geophys.Res.,1971,76(8):1954-1966
[15]Richter C F.Elementary seismology[M].San Franciscoclif:W H Freeman,1958:768
[16]Mogi K.Migration of seismic activity[J].Bull.Earthq.Res.Inst.,1968,15(46):53-74
[17]Dewey J W.Seismisity of Northern Anatolia[J].Bull.Seismol.Soc.Amer.,1976,15(6):543-568
[18]Toksoz M N.Space-time migration of earthquake along the North Anatolia fault zone and seismic gaps[J].Pageoph,1979,11(117):1258-1270
[19]Fedotov S A.Regularities of the distribution of strong earthquakes in Kamchatka,the Kurile Islands and Northeastern Japan Tr[J].Inst Phys Earth,Acde Sci USSR,1965,36:66-93
[20]Mogi K.Sequential occurrence of recent great earthquakes[J].J.Phys.Earth,1968,16(1):30-36
[21]Kelleber J A.Space-time seismicity of the Alaska-Aleutian seismiec Zone[J].J Geophys Res,1970,75(29):5745-5756
[22]Scholz C H.A physical interpretation of the Haicheng earthquake prediction[J].Nature,1977,267(5607):121-124
[23]郭増建,秦保燕.甘肃省的震中迁移现象[J].科学通报,1966,11(5):238-240
[24]马宗晋,李献智,金继宇.地震迁移的规律、解释和预报-中国大陆四条地震带的地震迁移[J].地震地质,1992,14(2):129-139
[25]张国民.地震预报引论[M].北京:地震出版社,2001
[26]毛可,石特临,杨立明.南北地震带强震迁移特征及其预测意义[J].西北地震学报,1997,19(4):6-11
[2]邓起东,张培震,冉勇康,等.中国活动构造基本特征[J].中国科学(D辑),2002,32(12):1020-1030
[3]张家声,李燕,韩竹均.青藏高原向东挤出的变形响应及南北地震带构造组成[J].地学前缘,2003,10(S1):168-175
[4]陈文德.中国南北地震带1900年以来强震的时空分布特征及其预报意义[J].四川地震,1997(3):17-22
[5]范燕,车兆宏.南北地震带北段及其两侧断层现今活动性[J].地震,2001,21(2):87-93
[6]祝意青,王双绪,程宏宾,等.南北地震带强震活动的时空关联现象探讨[J].西北地震学报,2003,25(2):179-182
[7]程万正.南北地震带地震转移图像与趋势预测[J].地震,2005,25(1):1-7
[8]汪一鹏,马瑾,李传友.南北地震带强震迁移特征及其与南亚地震带的联系[J].地震地质,2007,29(1):1-14
[9]杨兴悦,杨立明,陈继峰,等.南北地震带南北段地震迁移现象[J].地震地磁观测与研究,2012,33(2):7-12
[10]李成帅,杨建思,郑钰,等.南北地震带及邻近区域强震时空分布特征[J].地震地磁观测与研究,2013,34(3):24-31
[11]严武建,屠泓为,代炜.南北地震带7级以上地震的中期预测研究[J].高原地震,2008,20(4):14-20
[12]阎志德.论中国南北地震带强震活动特征及其地震强度与构造类型的关系[J].中国科学(B辑),1986(3):311-320
[13]韩守琪.南北地震带地震活动分析[J].内陆地震,1998,12(1):36-43
[14]Savage J C.A theory of creep waves propagating along a transform fault[J].J.Geophys.Res.,1971,76(8):1954-1966
[15]Richter C F.Elementary seismology[M].San Franciscoclif:W H Freeman,1958:768
[16]Mogi K.Migration of seismic activity[J].Bull.Earthq.Res.Inst.,1968,15(46):53-74
[17]Dewey J W.Seismisity of Northern Anatolia[J].Bull.Seismol.Soc.Amer.,1976,15(6):543-568
[18]Toksoz M N.Space-time migration of earthquake along the North Anatolia fault zone and seismic gaps[J].Pageoph,1979,11(117):1258-1270
[19]Fedotov S A.Regularities of the distribution of strong earthquakes in Kamchatka,the Kurile Islands and Northeastern Japan Tr[J].Inst Phys Earth,Acde Sci USSR,1965,36:66-93
[20]Mogi K.Sequential occurrence of recent great earthquakes[J].J.Phys.Earth,1968,16(1):30-36
[21]Kelleber J A.Space-time seismicity of the Alaska-Aleutian seismiec Zone[J].J Geophys Res,1970,75(29):5745-5756
[22]Scholz C H.A physical interpretation of the Haicheng earthquake prediction[J].Nature,1977,267(5607):121-124
[23]郭増建,秦保燕.甘肃省的震中迁移现象[J].科学通报,1966,11(5):238-240
[24]马宗晋,李献智,金继宇.地震迁移的规律、解释和预报-中国大陆四条地震带的地震迁移[J].地震地质,1992,14(2):129-139
[25]张国民.地震预报引论[M].北京:地震出版社,2001
[26]毛可,石特临,杨立明.南北地震带强震迁移特征及其预测意义[J].西北地震学报,1997,19(4):6-11
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