2015 NEPAL EARTHQUAKE AND THE FUTURE SEISMIC TREND OF HIMALAYA OROGENIC BELT

ZHAO Gen-mo; LIU Jie; WU Zhong-hai

Volume 21 Issue 3

Sep. 2015

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Article Navigation > Journal of Geomechanics > 2015 > 21(3): 351-358

ZHAO Gen-mo, LIU Jie, WU Zhong-hai, 2015. 2015 NEPAL EARTHQUAKE AND THE FUTURE SEISMIC TREND OF HIMALAYA OROGENIC BELT. Journal of Geomechanics, 21 (3): 351-358.

Citation:

ZHAO Gen-mo, LIU Jie, WU Zhong-hai, 2015. 2015 NEPAL EARTHQUAKE AND THE FUTURE SEISMIC TREND OF HIMALAYA OROGENIC BELT. Journal of Geomechanics, 21 (3): 351-358.

Citation:

ZHAO Gen-mo, LIU Jie, WU Zhong-hai, 2015. 2015 NEPAL EARTHQUAKE AND THE FUTURE SEISMIC TREND OF HIMALAYA OROGENIC BELT. Journal of Geomechanics, 21 (3): 351-358.

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2015 NEPAL EARTHQUAKE AND THE FUTURE SEISMIC TREND OF HIMALAYA OROGENIC BELT

ZHAO Gen-mo^{1, 2, 3
,},
LIU Jie^{1, 2, 4},
WU Zhong-hai^{1, 2
,
,}

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
Key Laboratory of Neotectonic Movement & Geohazard, Ministry of Land and Resources, Beijing 100081, China
3.
Earthquake Administration of Tianjin Municipality, Tianjin 300201, China
4.
College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China

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Received: 2015-06-06
Published: 2015-09-01

Abstract

Abstract

This paper briefly introduces the parameters of the M 8.1 earthquake on April 25, 2015, which is a low angle thrust fault movement in the middle of the Himalaya orogenic belt. The characteristics is that the source is very shallow, the intensity of the earthquake reaches to Ⅺ degree and the earthquake damage is severe. The rupture zone have a strike of the North West-South East, crossing the Nepalese capital Kathmandu, where the construction suffered serious damage. The earthquake was the largest earthquake in Nepal since 1934, which marking the end of the period of peace in Himalaya since 1950. Since entering the new active period in 2005, the great earthquake occurred in Nepal has reached the climax of the event in 2015, which is expected to last ten to several decades. According to the analysis of data of historical earthquakes, it may have a migration along the Himalayan zone in the future, and there will be larger earthquake in the eastern part of the Himalayan belt, so as to reach the top of earthquake tide and then have a end. There may be serious damage to the border of India, Bhutan and east-south region of Tibet. It is also possible to move northwardly along with the Himalaya belt in the vertical direction (i.e. horizontal migration), causing destructive earthquakes in Tibet, Qinghai in a few years. It needs to do a good job in monitoring, forecasting, and disaster prevention.
- earthquake climax,
- earthquake migration,
- seismic trend

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References(10)

References

[1]	USGS. Poster of the Nepal Earthquake of 25 April 2015-Magnitude 7[EP/OL]. http://earthquake.usgs.gov/earthquakes/eqarchives/poster/2015/20150425.php.
[2]	中国地震信息网. 2015尼泊尔8. 1级地震, 全球震源机制解[EP/OL]. http://www.csi.ac.cn/manage/eqDown/13Fault_xiguapi/201504.htm. China Earthquake Information Network. 2015 Nepal 8.1 earthquake, the global focal mechanism solution[EP/OL]. http://www.csi.ac.cn/manage/eqDown/13Fault_xiguapi/201504.htm.
[3]	Chandra U. Seismicity, earthquake mechanisms and tectonics along the Hmalayan Mountain range and vicinity[J]. Physics of the Earth and Planetary Interiors, 1978, 16(2): 109~131. doi: 10.1016/0031-9201(78)90083-3
[4]	Bilham R, Gaur V K, Molnar P. Himalayan seismic hazard[J]. Science, 2001, 293: 1442~1444. doi: 10.1126/science.1062584
[5]	EMSC-CSEM, 2015 M 7.8 NEPAL on April 25^th 2015 at 06:11 UTC[EP/OL]. http://www.emsc-csem.org/Earthquake/233/M7-8-NEPAL-on-April-25th-2015-at-06-11-UTC.
[6]	Thakur V C, Jayangondaperumal R, Malik M A. Redefining Medlicott-Wadia's main boundary fault from Jhelum to Yamuna: An active fault strand of the main boundary thrust in northwest Himalaya[J]. Tectonophysics, 2010, 489(1/4): 29~42. https://www.sciencedirect.com/science/article/pii/S0040195110001368
[7]	赵根模, 姚兰予, 马淑芹.断层位错引起的应力场变动与地震危险性预测[J].地震学报, 1994, 16(4):448~454. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB404.005.htm ZHAO Gen-mo, YAO Lan-yu, MA Shu-qin. Stress field variation caused by fault dislocation and seismic hazard prediction [J]. Acta Seismologica Sinica, 1994, 16(4): 448~454. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXB404.005.htm
[8]	刘艳辉, 赵根模, 吴中海, 等.地震空区法在大地震危险性初判中的应用——以青藏高原东南缘为例[J].地质力学学报, 2014, 20(3):254~273. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20140305&journal_id=dzlxxb LIU Yan-hui, ZHAO Gen-mo, WU Zhong-hai, et al. Application of spatial database technology and seismic gap method to seismic hazard analysis around south-eastern Tibetan Plateau [J]. Journal of Geomechanics, 2014, 20(3): 254~273. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20140305&journal_id=dzlxxb
[9]	刘艳辉, 赵根模, 吴中海, 等.青藏高原东南缘及邻区近年来地震b值特征[J].地质通报, 2015, 34(1):58~70. http://d.wanfangdata.com.cn/Periodical/zgqydz201501005 LIU Yan-hui, ZHAO Gen-mo, WU Zhong-hai, et al. An analysis of b-value characteristics of earthquake on the southeastern margin of the Tibetan Plateau and its neighboring areas[J]. Geological Bulletin of China, 2015, 34(1): 58~70. http://d.wanfangdata.com.cn/Periodical/zgqydz201501005
[10]	吴中海, 赵根模, 龙长兴, 等.青藏高原东南缘现今大震活动特征及其趋势:活动构造体系角度的初步分析结果[J].地质学报, 2014, 88(8):1401~1416. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201408004.htm WU Zhong-hai, ZHAO Gen-mo, LONG Chang-xing, et al. The seismic hazard assessment around South-East area of Qinghai-Xizang Plateau: A preliminary results from active tectonics system analysis[J]. Acta Geologica Sinica, 2014, 88(8): 1401~1416. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201408004.htm