World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Magnetic Transfer Function Entropy and the 2009 MW = 6.3 L'Aquila Earthquake (Central Italy) : Volume 19, Issue 4 (23/07/2012)

By Cianchini, G.

Click here to view

Book Id: WPLBN0003973218
Format Type: PDF Article :
File Size: Pages 9
Reproduction Date: 2015

Title: Magnetic Transfer Function Entropy and the 2009 MW = 6.3 L'Aquila Earthquake (Central Italy) : Volume 19, Issue 4 (23/07/2012)  
Author: Cianchini, G.
Volume: Vol. 19, Issue 4
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Barraclough, D. R., Wu, L. X., Santis, A. D., Cianchini, G., & Qin, K. (2012). Magnetic Transfer Function Entropy and the 2009 MW = 6.3 L'Aquila Earthquake (Central Italy) : Volume 19, Issue 4 (23/07/2012). Retrieved from

Description: Istituto Nazionale di Geofisica e Vulcanologia – Roma , Italy. With the aim of obtaining a deeper knowledge of the physical phenomena associated with the 2009 L'Aquila (Central Italy) seismic sequence, culminating with a Mw = 6.3 earthquake on 6 April 2009, and possibly of identifying some kind of earthquake-related magnetic or geoelectric anomaly, we analyse the geomagnetic field components measured at the magnetic observatory of L'Aquila and their variations in time. In particular, trends of magnetic transfer functions in the years 2006–2010 are inspected. They are calculated from the horizontal to vertical magnetic component ratio in the frequency domain, and are very sensitive to deep and lateral geoelectric characteristics of the measurement site. Entropy analysis, carried out from the transfer functions with the so called transfer function entropy, points out clear temporal burst regimes of a few distinct harmonics preceding the main shock of the seismic sequence. A possible explanation is that they could be related to deep fluid migrations and/or to variations in the micro-/meso-fracturing that affected significantly the conductivity (ordered/disordered) distribution in a large lithospheric volume under the seismogenic layer below L'Aquila area. This interpretation is also supported by the analysis of hypocentres depths before the main shock occurrence.

Magnetic transfer function entropy and the 2009 Mw = 6.3 L'Aquila earthquake (Central Italy)

Armadillo, E., Bozzo, E., Cerv, V., De Santis, A., Di Mauro, D., Gambetta, M., Meloni, A., Pek, J., and Speranza, F.: Geomagnetic depth sounding in the Northern Appennines (Italy), Earth Planet. Space, 53, 385–396, 2001.; Banks, R.: Data processing and interpretation in geomagnetic deep sounding, Phys. Earth Planet Int., 7, 339–348, 1973.; Banks, R.: Geomagnetic deep sounding, in: Encyclopedia of Geomagnetism and Paleomagnetism, edited by: Gubbins, D. and Herrero-Bervera, E., 307–310, 2007.; Basili, R., Valensise, G., Vannoli, P., Burrato, P., Fracassi, U., Mariano, S., Tiberti, M. M., and Boschi, E.: The Database of Individual Seismogenic Sources (DISS), version 3: summarizing 20 years of research on Italy's earthquake geology, Tectonophysics, 453, 20–43, doi:10.1016/j.tecto.2007.04.014, 2008.; Niblett, E. R. and Honkura, Y.: Time-dependence of Electromagnetic Transfer Functions and their Association with Tectonic Activity, Geophys. Surveys, 4, 97–114, 1980.; Bonafede, M., Ferrari, C., Maccaferri, F., and Stefánsson, R.: On the preparatory processes of the M6.6 earthquake of June 17th 2000, in Iceland, Geoph. Res. Lett., 34, L24305, doi:10.1029/2007GL031391, 2007.; Brace, W. F.: Dilatancy-related electrical resistivity changes in rocks, Pure Appl. Geophys., 113, 207–217, doi:10.1007/BF01592911, 1975.; Brace, W. F., Paulding Jr., B. W., and Sholz, C.: Dilatancy in the Fracture of Crystalline Rocks, J. Geophys. Res., 71, 3939–3953, doi:10.1029/JZ071i016p03939, 1966.; Chiarabba, C., Amato, A., Anselmi, M., Baccheschi, P., Bianchi, I., Cattaneo, M., Cecere, G., Chiaraluce, L., Ciaccio, M. G., De Gori, P., De Luca, G., Di Bona, M., Di Stefano, R., Faenza, L., Govoni, A., Improta, L., Lucente, F. P., Marchetti, A., Margheriti, L., Mele, F., Michelini, A., Monachesi, G., Moretti, M., Pastori, M., Piana Agostinetti, N., Piccinini, D., Roselli, P., Seccia, D., and Valoroso, L.: The 2009 L'Aquila (central Italy) $M_w$ 6.3 earthquake: main shock and aftershocks, Geoph. Res. Lett., 36, L18308, doi:10.1029/2009GL039627, 2009.; Chiodini, G., Cardellini, C., Amato, A., Boschi, E., Caliro, S., Frondini, F., and Ventura, G.: Carbon dioxide Earth degassing and seismogenesis in central and southern Italy, Geophys. Res. Lett., 31, L07615, doi:10.1029/2004GL019480, 2004.; Cowley, S. W. H.: Magnetosphere of the earth, in: Encyclopedia of Geomagnetism and Paleomagnetism, edited by: Gubbins, D. and Herrero-Bervera, E., 656–664, 2007.; DISS Working Group: Database of Individual Seismogenic Sources (DISS), Version 3.1.1: A compilation of potential sources for earthquakes larger than M 5.5 in Italy and surrounding areas, available at: (last access: 2 April 2012), © INGV 2010, Istituto Nazionale di Geofisica e Vulcanologia, 2010.; De Santis, A.: Geosystemics, Proc. 3rd IASME/WSEAS International Conference on Geology and Seismology (GES'09), 36–40, 2009.; De Santis, A., Cianchini, G., Qamili, E., and Frepoli, A.: The 2009 L'Aquila (Central Italy) seismic sequence as a chaotic process, Tectonophysics, 496, 44–52, 2010.; De Santis, A., Cianchini, G., Beranzoli, L., Favali, P., and Boschi, E.: The Gutenberg-Richter law and Entropy of earthquakes: two case studies in Central Italy, Bull. Seism. Soc. Am., 101, 1386–1395, 2011.; Di Luccio, F., Ventura, G., Di Giovambattista, R., Piscini, A., and Cinti, F. R.: Normal faults and thrusts re-activated by deep fluids: the 6 April 2009 $M_w$ 6.3 L'Aquila earthquake, central Italy, J. Geophys. Res., 115, B06315,


Click To View

Additional Books

  • Achieving Fast Reconnection in Resistive... (by )
  • Direct Numerical Simulation of Intermitt... (by )
  • Brief Communication: the Recent Seismic ... (by )
  • Time-scale Invariant Changes in Atmosphe... (by )
  • Synchronization and Chaos Control in a P... (by )
  • How Does the Quality of a Prediction Dep... (by )
  • Scaling of Peak Flows with Constant Flow... (by )
  • Complexity Signatures in the Geomagnetic... (by )
  • Estimation and Calibration of Observatio... (by )
  • Substorm Classification with the Windmi ... (by )
  • On the Generation of Solitary Waves Obse... (by )
  • Singular Value Decomposition (Svd) for E... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.