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首页> 外文期刊>Journal of Volcanology and seismology >The long-term earthquake forecast for the Kuril-Kamchatka island arc for the September 2013 to August 2018 period; the seismicity of the arc during preceding deep-focus earthquakes in the sea of Okhotsk (in 2008, 2012, and 2013 at M=7.7, 7.7, and 8.3)
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The long-term earthquake forecast for the Kuril-Kamchatka island arc for the September 2013 to August 2018 period; the seismicity of the arc during preceding deep-focus earthquakes in the sea of Okhotsk (in 2008, 2012, and 2013 at M=7.7, 7.7, and 8.3)

机译:2013年9月至2018年8月期间的千岛-堪察加岛弧长期地震预报;鄂霍次克海先前发生的深层地震时弧的地震活动性(在2008年,2012年和2013年,M分别为7.7、7.7和8.3)

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Work was performed in 2008-2014 on the long-term prediction of great earthquakes at the Kuril-Kamchatka arc based on patterns that are observable in the locations of the rupture zones of great earthquakes (seismic gaps) and in the seismic cycle for such earthquakes. The prediction method has been successfully developed and applied to the region since 1965 (the LTEP method). This paper presents a long-term seismic forecast for the September 2013 to August 2018 period for the Kuril-Kamchatka arc earthquake-generating zone. The forecast predicts the following quantities for 20 constituent segments: phases of the seismic cycle, the normalized rate of small earthquakes A(10), the magnitudes of moderate-size earthquakes to be expected with probabilities 0.8, 0.5, and 0.15, the maximum possible magnitudes and probabilities of occurrence for great (M a parts per thousand yen 7.7) earthquakes in the most active depth interval, viz., 0-80 km. We also discuss the seismic process in this region for the 2008-2013 period, namely, the patterns that are observable in the locations of earthquake swarms, the values of and changes in several characteristics of the seismic process in the Kuril-Kamchatka seismic zone during the period 2008-2013, which occurred in relation with great shallow earthquakes beneath the Sea of Okhotsk (July 5, 2008, M-W = 7.7; August 14, 2012, M-W = 7.7; May 24, 2013, M-W = 8.3, and the giant Tohoku earthquake of March 11, 2011 with M-W = 9.0). The results corroborate the high seismic hazard for the area of Petropavlovsk-Kamchatskii and the urgent necessity of continuing and intensifying the ongoing work on seismic retrofitting and seismic safety.
机译:在2008-2014年期间,根据在大地震破裂带(地震缝隙)的位置以及此类地震的地震周期中可观察到的模式,对Kuril-Kamchatka弧大地震的长期预测进行了工作。自1965年以来,该预测方法已经成功开发并应用于该地区(LTEP方法)。本文介绍了Kuril-Kamchatka弧形地震发生区2013年9月至2018年8月的长期地震预报。预测预测20个组成部分的以下数量:地震周期的阶段,小地震的归一化率A(10),预期中概率为0.8、0.5和0.15的中型地震的震级,最大可能在最活跃的深度区间(即0-80 km)发生大地震(百万分之7.7)的大震级和发生概率。我们还讨论了该地区2008年至2013年期间的地震过程,即在地震群位置可观察到的模式,库里尔-堪察加地震带在地震期间的地震过程的值和若干特征的变化。这是与鄂霍次克海下面的浅层地震有关的2008-2013年期间(2008年7月5日,MW = 7.7; 2012年8月14日,MW = 7.7; 2013年5月24日,MW = 8.3, 2011年3月11日的东北地震,MW = 9.0)。研究结果证实了彼得罗巴甫洛夫斯克-堪察加地区的地震危险性很高,并且迫切需要继续并加强正在进行的地震加固和地震安全工作。

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