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@Article{VogelBrPaMuMiCh:2020:ShEnMu,
               author = "Vogel, Eugenio E. and Brevis, Felipe G. and Past{\'e}n, Denisse 
                         and Muņoz, V{\'{\i}}ctor and Miranda, Rodrigo A. and Chian, 
                         Abraham Chian-Long",
          affiliation = "{Universidad de La Frontera} and {Universidad de La Frontera} and 
                         {Universidad de Chile} and {Universidad de Chile} and 
                         {Universidade de Bras{\'{\i}}lia (UnB)} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)}",
                title = "Measuring the seismic risk along the Nazca–South American 
                         subduction front: shannon entropy and mutability",
              journal = "Natural Hazards and Earth System Sciences",
                 year = "2020",
               volume = "20",
               number = "11",
                pages = "2943--2960",
                month = "Nov.",
             abstract = "Four geographical zones are defined along the trench that is 
                         formed due to the subduction of the Nazca plate underneath the 
                         South American plate; they are denoted A, B, C and D from north to 
                         south; zones A, B and D had a major earthquake after 2010 
                         (magnitude over 8.0), while zone C has not, thus offering a 
                         contrast for comparison. For each zone, a sequence of intervals 
                         between consecutive seisms with magnitudes greater than or equal 
                         to 3.0 is set up and then characterized by Shannon entropy and 
                         mutability. These methods show a correlation after a major 
                         earthquake in what is known as the aftershock regime but show 
                         independence otherwise. Exponential adjustments to these 
                         parameters reveal that mutability offers a wider range for the 
                         parameters to characterize the recovery compared to the values of 
                         the parameters defining the background activity for each zone 
                         before a large earthquake. It is found that the background 
                         activity is particularly high for zone A, still recovering for 
                         zone B, reaching values similar to those of zone A in the case of 
                         zone C (without recent major earthquake) and oscillating around 
                         moderate values for zone D. It is discussed how this can be an 
                         indication of more risk of an important future seism in the cases 
                         of zones A and C. The similarities and differences between Shannon 
                         entropy and mutability are discussed and explained.",
                  doi = "10.5194/nhess-20-2943-2020",
                  url = "http://dx.doi.org/10.5194/nhess-20-2943-2020",
                 issn = "1561-8633",
             language = "en",
           targetfile = "vogel_measuring.pdf",
        urlaccessdate = "02 dez. 2020"
}


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