In search of new imaging for historical earthquakes: a new geophysical survey offshore western Calabria (southern Tyrrhenian Sea, Italy)

被引：12
|
作者：
Loreto, M. F. [1 ]
Zgur, F. [1 ]
Facchin, L. [1 ]
Fracassi, U. [2 ]
Pettenati, F. [1 ]
Tomini, I. [1 ]
Burca, M. [1 ]
Diviacco, P. [1 ]
Sauli, C. [1 ]
Cossarini, G. [1 ]
De Vittor, C. [1 ]
Sandron, D. [1 ]
机构：
[1] Ist Nazl Oceanog & Geofis Sperimentale, I-34010 Sgonico, TS, Italy
[2] Ist Nazl Geofis & Vulcanol, Rome, Italy
来源：
BOLLETTINO DI GEOFISICA TEORICA ED APPLICATA | 2012年 / 53卷 / 04期
关键词：
1905; earthquake; active tectonics; mud volcanoes; Gulf of Sant'Eufemia; GEOLOGICAL-SURVEY INTENSITIES; NARROWS; 1987; EARTHQUAKE; ARC; QUATERNARY; SLIP; VALIDATION; INVERSION; UPLIFT; BASIN;
D O I：
10.4430/bgta0046
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
During the summer of 2010 we carried out a survey to acquire a multidisciplinary dataset within the Gulf of Sant'Eufemia (south-eastern Tyrrhenian sea, Italy), with the aim of studying the active tectonics affecting the region, including that potentially responsible for key, elusive earthquakes such as the to-date unexplained September 8, 1905 (M-W 7-7.5) earthquake. The data here analyzed highlight the presence of several tectonic and morphologic features characterizing the investigated area. We have recognized the Angitola Channel, a deep and wide canyon showing a straight trend in its coastward segment, and a meandering trend in the seaward segment. Based on morpho-structural elements, we maintain that the Angitola Channel could be tectonically controlled. Moreover, several gravitational instabilities as slumps and slides affect the flanks of the morpho-structural high, detected offshore Capo Vaticano. Very high resolution seismic data have unveiled the presence of numerous fluid escape features and several mud volcanoes straddling the sector from the coastline to seawards.
引用
收藏
页码：385 / 401
页数：17
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