FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3083496142> ?p ?o ?g. }

• W3083496142 abstract "&lt;p&gt;Cotopaxi volcano (5,897 m) is located in Central Ecuador, 50 km south of Quito. It has a long eruptive history including more than 70 eruptions with an estimated VEI between 2 and 4 since 1534. Its last low magnitude eruption occurred in 2015. The summit of the volcano is covered by a glacier down to about 5000 m elevation. The volcano is monitored by the Instituto Geof&amp;#237;sico (IG) whose monitoring network includes permanent seismic stations. The closest station to the summit (BREF) is located 1 km below the summit (2.2 km distance), about 400 m from the base of the glacier. It is used as a reference station by the IG to characterize the seismicity. The station records transient events related to volcanic activity such as Long Period (LP) and Volcano Tectonic (VT) events, as well as icequakes (IQ) issued from the neighboring glacier. IQs may have various origins including fracture propagation or opening, collapse of ice blocks, basal friction or forced water flow within the glacier. These signals may be difficult to distinguish from VTs or LPs.&lt;/p&gt;&lt;p&gt;We examined data from station BREF recorded between January 2013 and October 2018, with the aim of identifying families of characteristic similar events. We applied a 3-step procedure including: (1) an automatic detection of transient events, (2) a classification of the detected events into families of similar events and (3) a re-composition of the temporal evolution of the largest families using matched-filtering. This procedure outlines the presence of numerous families and points out 4 characteristic temporal evolutions with respect of the 2015 eruption. These evolutions allow to distinguish precursory LP events from background seismicity and outline the presence of long lasting families which may persist for years. We use amplitude ratios calculated between BREF and a station more distant from the summit to distinguish shallow families from deeper ones. We also locate sources of long-lasting families with a seismic antenna installed at the foot of the glacier from April to September 2018. Locations indicate shallow sources below the glacier corresponding to IQs. These results confirm that background seismicity close to the summit of Cotopaxi is dominated by IQs. Temporal evolutions of these families also suggest that the large (Mw=7.8) subduction earthquake which occurred near Pedernales on April 16, 2016, 250 km from the volcano, had a stronger influence on the glacier or its shallow substratum than the 2015 eruption.&lt;/p&gt;" @default.
• W3083496142 created "2020-09-11" @default.
• W3083496142 creator A5031619716 @default.
• W3083496142 creator A5032537425 @default.
• W3083496142 creator A5043693699 @default.
• W3083496142 creator A5052566699 @default.
• W3083496142 creator A5074728166 @default.
• W3083496142 creator A5076512583 @default.
• W3083496142 creator A5076540192 @default.
• W3083496142 date "2020-03-23" @default.
• W3083496142 modified "2023-09-30" @default.
• W3083496142 title "Discriminating icequakes from volcanic seismicity at Cotopaxi volcano (Ecuador)" @default.
• W3083496142 doi "https://doi.org/10.5194/egusphere-egu2020-11749" @default.
• W3083496142 hasPublicationYear "2020" @default.
• W3083496142 type Work @default.
• W3083496142 sameAs 3083496142 @default.
• W3083496142 citedByCount "0" @default.
• W3083496142 crossrefType "posted-content" @default.
• W3083496142 hasAuthorship W3083496142A5031619716 @default.
• W3083496142 hasAuthorship W3083496142A5032537425 @default.
• W3083496142 hasAuthorship W3083496142A5043693699 @default.
• W3083496142 hasAuthorship W3083496142A5052566699 @default.
• W3083496142 hasAuthorship W3083496142A5074728166 @default.
• W3083496142 hasAuthorship W3083496142A5076512583 @default.
• W3083496142 hasAuthorship W3083496142A5076540192 @default.
• W3083496142 hasConcept C100834320 @default.
• W3083496142 hasConcept C100970517 @default.
• W3083496142 hasConcept C114793014 @default.
• W3083496142 hasConcept C120806208 @default.
• W3083496142 hasConcept C121332964 @default.
• W3083496142 hasConcept C126691448 @default.
• W3083496142 hasConcept C127313418 @default.
• W3083496142 hasConcept C1276947 @default.
• W3083496142 hasConcept C165205528 @default.
• W3083496142 hasConcept C205649164 @default.
• W3083496142 hasConcept C2778848561 @default.
• W3083496142 hasConcept C77928131 @default.
• W3083496142 hasConcept C83176761 @default.
• W3083496142 hasConceptScore W3083496142C100834320 @default.
• W3083496142 hasConceptScore W3083496142C100970517 @default.
• W3083496142 hasConceptScore W3083496142C114793014 @default.
• W3083496142 hasConceptScore W3083496142C120806208 @default.
• W3083496142 hasConceptScore W3083496142C121332964 @default.
• W3083496142 hasConceptScore W3083496142C126691448 @default.
• W3083496142 hasConceptScore W3083496142C127313418 @default.
• W3083496142 hasConceptScore W3083496142C1276947 @default.
• W3083496142 hasConceptScore W3083496142C165205528 @default.
• W3083496142 hasConceptScore W3083496142C205649164 @default.
• W3083496142 hasConceptScore W3083496142C2778848561 @default.
• W3083496142 hasConceptScore W3083496142C77928131 @default.
• W3083496142 hasConceptScore W3083496142C83176761 @default.
• W3083496142 hasLocation W30834961421 @default.
• W3083496142 hasOpenAccess W3083496142 @default.
• W3083496142 hasPrimaryLocation W30834961421 @default.
• W3083496142 hasRelatedWork W10943043 @default.
• W3083496142 hasRelatedWork W13076150 @default.
• W3083496142 hasRelatedWork W16598290 @default.
• W3083496142 hasRelatedWork W20491809 @default.
• W3083496142 hasRelatedWork W21154928 @default.
• W3083496142 hasRelatedWork W24494067 @default.
• W3083496142 hasRelatedWork W25222758 @default.
• W3083496142 hasRelatedWork W5098547 @default.
• W3083496142 hasRelatedWork W5716272 @default.
• W3083496142 hasRelatedWork W6317760 @default.
• W3083496142 isParatext "false" @default.
• W3083496142 isRetracted "false" @default.
• W3083496142 magId "3083496142" @default.
• W3083496142 workType "article" @default.