期刊
GEOPHYSICAL RESEARCH LETTERS
卷 45, 期 7, 页码 3017-3025出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2018GL077095
关键词
-
资金
- National Natural Science Foundation of China [41474114]
- Czech Science Foundation [GACR-1806716J]
Seismology illuminates physical processes occurring during underground explosions, not all yet fully understood. The thus-far strongest North Korean test of 3 September 2017 was followed by a moderate seismic event (mL 4.1) after 8.5 min. Here we provide evidence that this aftershock was a nontectonic event which radiated seismic waves as a buried horizontal closing crack. This vigorous crack closure, occurring shortly after the blast, is studied in the North Korea test site for the first time. The event can be qualitatively explained as rapid destruction of an explosion-generated cracked rock chimney due to cavity collapse, although other compaction processes cannot be ruled out.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据