气候变化领域集成服务门户(CCPortal): Contribution to knowledge regarding the sources of earthquakes on the island of Ischia (Southern Italy)

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DOI	10.1007/s11069-019-03833-8
	Contribution to knowledge regarding the sources of earthquakes on the island of Ischia (Southern Italy)
	Cubellis E.; Luongo G.; Obrizzo F.; Sepe V.; Tammaro U.
发表日期	2020
ISSN	0921030X
起始页码	955
结束页码	994
卷号	100 期号:3
英文摘要	This paper analyses data regarding the seismicity and ground deformations of the island of Ischia. The goal is to describe these phenomena as a space–time process, exploring the mechanism as a whole in order to answer questions concerning why and how historical earthquakes occurred and the geological constrains at the time of the earthquake of 21 August 2017. According to our analysis, the genesis of earthquakes in the island may be due either to regional tensile tectonics or to increased pressure in a shallow magma source. The eruptive rest following the 1302 Arso lava flow, the seismic silence from 1883 and the ground sinking recorded at least from the end of the nineteenth century suggest a decline of pressure in the shallow magma source and in the action of the stress field generated by the spreading of the Tyrrhenian Basin. The mechanism that can generate the observed ground deformation field and seismicity is the gravitational and thermal loading of the island, because the load of the massif of Mt. Epomeo onto its hot substratum may induce the gravitational spreading that would have produced its sliding southwards and its rotation northwards. The surface of detachment plunges towards the south and emerges at a high angle at the northern edge of Mt. Epomeo, where coseismic ground effects and the greatest damage have been observed. This mechanism that generated the 21 August 2017 earthquake could be extended to historical seismicity. © 2020, Springer Nature B.V.
关键词	Coseismic and historical ground deformations Gravitational and thermal loading Rheology of shallow crust
英文关键词	coseismic process; deformation mechanism; earthquake event; gravity field; knowledge; paleoseismicity; rheology; seismic source; Campania [Italy]; Ischia; Italy; Mediterranean Sea; Mount Epomeo; Napoli [Campania]; Tyrrhenian Sea
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205639
作者单位	Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Naples, Italy; Emeritus, University of Naples “Federico II”, Naples, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Nazionale Terremoti, Rome, Italy
推荐引用方式 GB/T 7714	Cubellis E.,Luongo G.,Obrizzo F.,et al. Contribution to knowledge regarding the sources of earthquakes on the island of Ischia (Southern Italy)[J],2020,100(3).
APA	Cubellis E.,Luongo G.,Obrizzo F.,Sepe V.,&Tammaro U..(2020).Contribution to knowledge regarding the sources of earthquakes on the island of Ischia (Southern Italy).Natural Hazards,100(3).
MLA	Cubellis E.,et al."Contribution to knowledge regarding the sources of earthquakes on the island of Ischia (Southern Italy)".Natural Hazards 100.3(2020).