Large landslide stress states calculated during extreme climatic and tectonic events on El Hierro, Canary Islands

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F18%3A00495387" target="_blank" >RIV/67985891:_____/18:00495387 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/18:00102851

Result on the web

<a href="http://dx.doi.org/10.1007/s10346-018-0993-1" target="_blank" >http://dx.doi.org/10.1007/s10346-018-0993-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10346-018-0993-1" target="_blank" >10.1007/s10346-018-0993-1</a>

Result language

angličtina

Original language name

Large landslide stress states calculated during extreme climatic and tectonic events on El Hierro, Canary Islands

Original language description

Composed volcanic edifices are particularly prone to large-scale failures—these often result from the acceleration of preexisting deep-seated gravitational slope deformations. Consequently, a complete understanding of the kinematic behaviour of such slope deformations would represent an important step towards mitigating against human casualties or fatalities and damage to critical infrastructure. In this manuscript, a 9-month time series of three-dimensional fault displacement measurements has been used to determine the stress states of the San Andrés Landslide on El Hierro in the Canary Islands. These stress states have been calculated on the basis of single-displacement events using a novel approach which only requires information about the magnitude of the movement vector and its orientation. The analysis focused on four specific periods: a reference period in November 2013, an extreme rainfall event at the beginning of December 2013, and two endogenous impulses at the end of December 2013 and during the middle of March 2014. On the basis that the direction of principal stress represents a marker for the direction of landslide mass movement, it has been possible to define six landslide activity modes which correspond to specific stress states. The response of the landslide to the extreme rainfall event was immediate and reflected increasing saturation of the porous landslide mass. The response of the landslide to the endogenous impulses was more complicated as compressional pulses often alternated with gravitational relaxation. In this study, it is demonstrated that the landslide stress state can be determined on the basis of a single-displacement event whenever fault displacements are monitored in three dimensions. This innovative approach may represent a valuable step towards a complete understanding of the kinematic behaviour of potentially catastrophic slope deformations, particularly those which are in a critical stability state.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10505 - Geology

Project

<a href="/en/project/GJ16-12227Y" target="_blank" >GJ16-12227Y: El Hierro megalandslide dynamics analysed using “big data” to predict the future behaviour of megalandslides on other volcanic islands</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Landslides

ISSN

1612-510X

e-ISSN

—

Volume of the periodical

15

Issue of the periodical within the volume

9

Country of publishing house

DE - GERMANY

Number of pages

14

Pages from-to

1801-1814

UT code for WoS article

000443566700008

EID of the result in the Scopus database

2-s2.0-85046022742