HUAN WEFLIN, GU MING, CHANG XIANGDONGcom sh advance. 1991: MULTIPLE RUPTURE CHARACTERISTICS OF THE 1920 HAIYUAN M8(1/2) EARTHQUAKES. Acta Seismologica Sinica, 13(1): 21-31.
Citation: HUAN WEFLIN, GU MING, CHANG XIANGDONGcom sh advance. 1991: MULTIPLE RUPTURE CHARACTERISTICS OF THE 1920 HAIYUAN M8(1/2) EARTHQUAKES. Acta Seismologica Sinica, 13(1): 21-31.

MULTIPLE RUPTURE CHARACTERISTICS OF THE 1920 HAIYUAN M8(1/2) EARTHQUAKES

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  • Published Date: September 01, 2011
  • Field survey by the authors reveals that, the overall length of the earthquake fault for the great 1920 Haiyuan, China, M8(1/2) Earthquake is 225 km, and that the fault consists of 6 sub-faults which show different geometries and stretch regularly in en-echelon configuration. Each subfault can be divided into three segments with different deformation features: the middle segment is essentially strike-slip type, while the two end-segments show predominant vertical displacement, being essentially normal or thrust type respectively. Measurements give the result that maximum horizontal displacement appears at the middle part of each subfault, and dies away gradually near the two ends, while the vertical displacement distributes in just thte opposite way, being small at the middle and large at the ends. The whole fault exhibits several peak displacements.This implies that the 6 subfaults of the great Haiyuan Earthquake are all independent displacement dis-continuities (dislocations), and each of them represents a rupture event. In this regard the authors suggest that the great M8(1/2) Haiyuan Earthquake might be the result of 6 successive subevents which occurred independently of each other.
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    [2] 谢家荣, 1924.民国九年十二月十六日甘肃及其它各省之地震情况.地学杂志,8,9合期.

    [3] Vpton close, Elsie Mccormic, 1922. Where the Mountains Walked. The Naaional Geographic Magaxirae, 12, 5.

    [4] 国家地震局兰州地震研究所X1980.宁夏回族自治区地震队。一九二零年海原大地震,20—— 38.地震出版社,北京.

    [5] 丁国瑜 1982.活动走滑断裂带的断错水系与地震.地震, 1; 3——8,

    [6] 宋方敏、朱世龙、汪一鹏、邓起东,1983. 1920年海原地震中的最大水平位移及西华山北缘断裂地震重复率的估计.地震地质,5,4,29——37,

    [7] 周俊喜,刘百茂,1983,海原地震断层(景泰段)全新世活动及海原地震水平断错.西北地震学报,5,4,104——105,

    [8] 环文林、葛民、王士平、常向东、张维歧、万自成、柴积章、焦德成,1986, 1920年海原吟级地震的地震断层带及孕震构造考察研究的初步结果.国际地震动态,1; 3——7,

    [9] 环文林、葛民、王士平、常向东、万自成、柴积章、张维歧、焦德成,1987. 1920年海原8级大地震形变带考察报告.中国大地震考察,第一卷,20——61.地震出版社,北京.

    [10] 万自成、柴积章、王士平、葛民、环文林、常向东,1987. 192。年海原8级大地震的地质构造背景.中国大地震考察,第一卷 61——72,地震出版社,北京.

    [11] 柴积章、万自成、环文林、葛民、王士平、常向东,1985海原一景泰断裂带的左旋错动特征.中国地震年鉴,300——310.地震出版社,北京.

    [12] Wyss. M. and Brane. J. N., 1967. The Alaska earthquake of 28, March, 1964, A. Complex. multiple rupture. Bull. Seis. Soc. Amen 57, 1017,

    [13] Miyamura, S., 1965. Multiple shocks and earthquake series pattern, Bull. Int, lest, Seis. Earthq.Eng., 2, 71——92,

    [14] Umesh, Chandra, 1970. The Peru——Bolivia border earthquake of August 15, 1963. Bull. Seis. Soc.Amen, 60, 639——64G.

    [15] 曾融生、师洁珊,1978, 1974年5月10日云南永善——大关主震的多重性.地球物理学报,21,160——173.

    [16] 笠原庆一,1984.地震力学(日文) 52——79.地震出版社,北京.

    [17] 罗灼礼,1980,震源应力场、形变场和倾斜场.地震学报,2,169——185,

    [1] 翁文濒, 1921.甘肃地震结要.科学,6,9.

    [2] 谢家荣, 1924.民国九年十二月十六日甘肃及其它各省之地震情况.地学杂志,8,9合期.

    [3] Vpton close, Elsie Mccormic, 1922. Where the Mountains Walked. The Naaional Geographic Magaxirae, 12, 5.

    [4] 国家地震局兰州地震研究所X1980.宁夏回族自治区地震队。一九二零年海原大地震,20—— 38.地震出版社,北京.

    [5] 丁国瑜 1982.活动走滑断裂带的断错水系与地震.地震, 1; 3——8,

    [6] 宋方敏、朱世龙、汪一鹏、邓起东,1983. 1920年海原地震中的最大水平位移及西华山北缘断裂地震重复率的估计.地震地质,5,4,29——37,

    [7] 周俊喜,刘百茂,1983,海原地震断层(景泰段)全新世活动及海原地震水平断错.西北地震学报,5,4,104——105,

    [8] 环文林、葛民、王士平、常向东、张维歧、万自成、柴积章、焦德成,1986, 1920年海原吟级地震的地震断层带及孕震构造考察研究的初步结果.国际地震动态,1; 3——7,

    [9] 环文林、葛民、王士平、常向东、万自成、柴积章、张维歧、焦德成,1987. 1920年海原8级大地震形变带考察报告.中国大地震考察,第一卷,20——61.地震出版社,北京.

    [10] 万自成、柴积章、王士平、葛民、环文林、常向东,1987. 192。年海原8级大地震的地质构造背景.中国大地震考察,第一卷 61——72,地震出版社,北京.

    [11] 柴积章、万自成、环文林、葛民、王士平、常向东,1985海原一景泰断裂带的左旋错动特征.中国地震年鉴,300——310.地震出版社,北京.

    [12] Wyss. M. and Brane. J. N., 1967. The Alaska earthquake of 28, March, 1964, A. Complex. multiple rupture. Bull. Seis. Soc. Amen 57, 1017,

    [13] Miyamura, S., 1965. Multiple shocks and earthquake series pattern, Bull. Int, lest, Seis. Earthq.Eng., 2, 71——92,

    [14] Umesh, Chandra, 1970. The Peru——Bolivia border earthquake of August 15, 1963. Bull. Seis. Soc.Amen, 60, 639——64G.

    [15] 曾融生、师洁珊,1978, 1974年5月10日云南永善——大关主震的多重性.地球物理学报,21,160——173.

    [16] 笠原庆一,1984.地震力学(日文) 52——79.地震出版社,北京.

    [17] 罗灼礼,1980,震源应力场、形变场和倾斜场.地震学报,2,169——185,
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