Journal : Acta Geophysica
Article : Scaling characteristics of SEGMA magnetic field data around the Mw 6.3 Aquila earthquake

Authors :
Vitkulin, A. V.
Institute of Volcanology and Seismology, Far East Branch, Russian Academy of Sciences, Petropavlovsk-Kamchatski, Russia,,
Semenov, V. Y.
Institute of Geophysics, Polish Academy of Sciences, Warszawa, Poland,,
Majewski, E.
Institute of Geophysics, Polish Academy of Sciences, Warszawa, Poland,,
Nenovski, P.
National Institute for Geophysics, Geodesy and Geography, Sofia, Bulgaria,,
Abstract : We apply detrended fluctuation analysis (DFA) on fluxgate and search-coil data in ULF range (scales 10-90 s or 0.1-0.011 Hz) for the months January-April 2009 available from the South European GeoMagnetic Array stations: Castello Tesino (CST), Ranchio (RNC), and L’Aquila (AQU) in Italy; Nagycenk (NCK) in Hungary; and Panagyuriste (PAG) in Bulgaria. DFA is a data processing method that allows for the detection of scaling behaviors in observational time series even in the presence of non-stationarities. The H and Z magnetic field components at night hours (00-03 UT, 01-04 LT) and their variations at the stations CST, AQU, NCK, and PAG have been examined and their scaling characteristics are analyzed depending on geomagnetic and local conditions. As expected, the scaling exponen ts are found to increase when the Kp index increases, indicating a good correlation with geomagnetic activity. The scaling exponent reveals also local changes (at L’Aquila), which include an increase for the Z (vertical) component, followed by a considerable decrease for the X (horizontal) component in the midst of February 2009. Attempts are made to explain this unique feature with artificial and/or natural sources including the enhanced earthquake activity in the months January-April 2009 at the L’Aquila district.

Keywords : detrended fluctuation analysis (DFA), magnetic field data, ultra low frequency (ULF), pulse activity, polarization, earthquake,
Publishing house : Instytut Geofizyki PAN
Publication date : 2013
Number : Vol. 61, no. 2
Page : 311 – 337

: Anzidei, M., E. Boschi, V. Cannelli, R. Devoti, A. Esposito, A. Galvani, D. Melini, G. Pietrantonio, F. Riguzzi, V. Sepe, and E. Serpelloni (2009), Coseismic deformation of the destructive April 6, 2009 L’Aquila earthquake (central Italy) from GPS data, Geophys. Res. Lett. 36, L17307, DOI: 10.1029/2009gl039145.
Atzori, S., I. Hunstad, M. Chini, S. Salvi, C. Tolomei, C. Bignami, S. Stramondo, E. Trasatti, A. Antonioli, and E. Boschi (2009), Finite fault inversion of DinSAR coseimic displacement of the 2009 L’Aquila earthquake (central Italy), Geophys. Res. Lett. 36, L15305, DOI: 10.1029/2009GL039293.
Bernardi, A., A.C. Fraser-Smith, P.R. McGill, and O.G. Villard Jr. (1991), ULF magnetic field measurements near the epicenter of the Ms 7.1 Loma Prieta earthquake, Phys. Earth Planet. Int. 68, 1-2, 45-63, DOI: 10.1016/0031-9201(91)90006-4.
Bleier, T., and C. Dunson (2005), ELF magnetic field monitoring of the San Simeon M6.4 quake from both Quakesat and a ground network. In: Proc. International Workshop on Seismo-Electromagnetics, Tokyo, Japan, March Issue.
Bleier, T., and F. Freund (2005), Earthquake earthquake warning systems, IEEE Spectrum 42, 12, 22-27, DOI: 10.1109/MSPEC.2005.1549778.
Bleier, T., C. Dunson, M. Maniscalco, N. Bryant, R. Bambery, and F. Freund (2009), Investigation of ULF magnetic pulsations, air conductivity changes, and infra red signatures associated with the 30 October Alum Rock M5.4 earthquake, Nat. Hazards Earth Syst. Sci. 9, 585-603, DOI: 10.5194/nhess- 9-585-2009.
Bortnik, J., T.E. Bleier, C. Dunson, and F. Freund (2010), Estimating the seismotelluric current required for observable electromagnetic ground signals, Ann. Geophys. 28, 1615-1624, DOI: 10.5194/angeo-28-1615-2010.
Buldyrev, S.V., A.L. Goldberger, S. Havlin, R.N. Mantegna, M.E. Matsa, C.-K. Peng, M. Simons, and H.E. Stanley (1995), Long-range correlation properties of coding and noncoding DNA sequences: GenBank analysis, Phys. Rev. E 51, 5, 5084-5091, DOI: 10.1103/PhysRevE.51.5084.
Campbell, W.H. (2009), Natural magnetic disturbance fields, not precursors, preceding the Loma Prieta earthquake, J. Geophys. Res. 114, A05307, DOI: 10.1029/2008JA013932.
Chamati, M., P. Nenovski, M. Vellante, U. Villante, K. Schwingenschuh, M. Boudjada, and V. Wesztergom (2009), Application of DFA method to magnetic field data from SEGMA array, Bulg. Geophys. J. 35, 1-4, 3-16.
Chiarabba, C., A. Amato, M. Anselmi, P. Baccheschi, I. Bianchi, M. Cattaneo, G. Cecere, L. Chiaraluce, M.G. Ciaccio, P. De Gori, G. De Luca, M. Di Bona, R. Di Stefano, L. Faenza, A. Govoni, L. Improta, F.P. Lucente, A. Marchetti, L. Margheriti, F. Mele, A. Michelini, G. Monachesi, M. Moretti, M. Pastori, N. Piana Agostinetti, D. Piccinini, P. Roselli, D. Seccia, and L. Valoroso (2009), The 2009 L’Aquila (central Italy) MW 6.3 earthquake: Main shock and aftershocks, Geophys. Res. Lett. 36, L18308, DOI: 10.1029/2009GL039627.
Currenti, G., C. Del Negro, V. Lapenna, and L. Telesca (2005a), Scaling characteristics of local geomagnetic field and seismicity at Etna volcano and their Dynamics in relation to the eruptive activity, Earth Planet. Sci. Lett. 235, 1-2, 96-106, DOI: 10.1016/j.epsl.2005.02.043.
Currenti, G., C. Del Negro, V. Lapenna, and L. Telesca (2005b), Fluctuation analysis of the hourly time variability of volcano-magnetic signals recorded AT Mt. Etna volcano, Sicily (Italy), Chaos Soliton. Fract. 23, 5, 1921-1929, DOI: 10.1016/j.chaos.2004.07.035.
Currenti, G., C. Del Negro, V. Lapenna, and L. Telesca (2005c), Multifractality in local geomagnetic field at Etna volcano, Sicily (southern Italy), Nat. Hazards Earth Syst. Sci. 5, 4, 555-559, DOI: 10.5194/nhess-5-555-2005.
De Luca, G., S. Marcucci, G. Milana, and T. Sanò (2005), Evidence of lowfrequency amplification in the city of L’Aquila, Central Italy, through a multidisciplinary approach including strong- and weak-motion data, ambitne noise, and numerical modeling, Bull. Seismol. Soc. Am. 95, 4, 1469-1481, DOI: 10.1785/0120030253.
Del Negro, C., G. Budetta, and F. Ferricci (1994), Volcanomagnetic anomalies: a review and the computation of the piezomagnetic field expected at Vulcano (Aeolian Islands, Italy), Ann Geofis. 37, Suppl. 5, 1167-1183.
Draganov, A.B., U.S. Inan, and Yu.N. Taranenko (1991), ULF magnetic signatures at the Earth surface due to ground water flow: A possible precursor to earthquakes, Geophys. Res. Lett. 18, 6, 1127-1130, DOI: 10.1029/91GL01000.
Egbert, G.D. (2002), On the generation of ULF magnetic variations by conductivity fluctuations in a fault zone, Pure Appl. Geophys. 159, 6, 1205-1227, DOI: 10.1007/s00024-002-8678-y.
Fenoglio, M.A., A.C. Fraser-Smith, G.C. Beroza, and M.J.S. Johnston (1993), Comparison of ultra-low frequency electromagnetic signals with aftershock activity during the 1989 Loma Prieta earthquake sequence, Bull. Seismol. Soc. Am. 83, 2, 347-357.
Fenoglio, M.A., M.J.S. Johnston, and J.D. Byerlee (1995), Magnetic and electric fields associated with changes in high pore pressure in fault zones: Application to the Loma Prieta ULF emissions, J. Geophys. Res. 100, B7, 12951-12958, DOI: 10.1029/95JB00076.
Fraser-Smith, A.C. (2008), Ultralow-frequency magnetic fields preceding large earthquakes, EOS Trans. AGU 89, 23, 211, DOI: 10.1029/2008EO230007.
Fraser-Smith, A.C. (2009), The ultralow-frequency magnetic fields associated with and preceding earthquakes. In: M. Hayakawa (ed.), Electromagnetic Phenomena Associated with Earthquakes, Trasworld Research Network, Trivandrum, 1-20.
Fraser-Smith, A.C., A. Bernardi, P.R. McGill, M.E. Ladd, R.A. Helliwell, and, O.G. Villard, Jr. (1990), Low-frequency magnetic field measurements near the epicenter of the Ms7.1 Loma Prieta earthquake, Geophys. Res. Lett. 17, 1465-1468, DOI: 10.1029/GL017i009p01465.
Fraser-Smith, A.C., P.R. McGill, R.A. Helliwell, and O.G. Villard, Jr. (1994), Ultralow frequency magnetic field measurements in southern California Turing the Northridge earthquake of 17 January 1994, Geophys. Res. Lett. 21, 20, 2195-2198, DOI: 10.1029/94GL01984.
Freund, F.T. (2007a), Pre-earthquake signals – Part I: Deviatoric stresses turn rocks into a source of electric currents, Nat. Hazards Earth Syst. Sci. 7, 535-541, DOI: 10.5194/nhess-7-535-2007.
Freund, F.T. (2007b), Pre-earthquake signals – Part II: Flow of battery currents in the crust, Nat. Hazards Earth Syst. Sci. 7, 543-548, DOI: 10.5194/nhess-7-543-2007.
Freund, F.T., A. Takeuchi, and B.W. Lau (2006), Electric currents streaming out of stressed igneous rocks – A step towards understanding pre-earthquake low frequency EM emissions, Phys. Chem. Earth 31, 4-9, 389-396, DOI: 10.1016/j.pce.2006.02.027.
Hattori, K., and M. Hayakawa (2007), Recent progress and state of the art of seismoelectromagnetics, IEEJ Trans. Fund. Mater. 127, 1, 4-6, DOI: 10.1541/ieejfms.127.4.
Hayakawa, M., and Y. Fujinawa (eds.) (1994), Electromagnetic Phenomena Related to Earthquake Prediction, TERRAPUB, Tokyo, 677 pp.
Hayakawa, M., R. Kawate, O.A. Molchanov, and K. Yumoto (1996), Results of ultra-low-frequency magnetic field measurements during the Guam earthquake of 8 August 1993, Geophys. Res. Lett. 23, 3, 241-244, DOI: 10.1029/95GL02863.
Hayakawa, M., T. Ito, and N. Smirnova (1999), Fractal analysis of ULF geomagnetic data associated with the Guam earthquake on August 8, 1993, Geophys. Res. Lett. 26, 18, 2797-2800, DOI: 10.1029/1999GL005367.
Hayakawa, M., T. Itoh, K. Hattori, and K. Yumoto (2000), ULF electromagnetic precursors for an earthquake at Biak, Indonesia on February 17, 1996, Geophys. Res. Lett. 27, 10, 1531-1534, DOI: 10.1029/1999GL005432.
Ida, Y., M. Hayakawa, A. Adalev, and K. Gotoh (2005), Multifractal analysis for the ULF geomagnetic data during the 1993 Guam earthquake, Nonlin. Processes Geophys. 12, 157-162, DOI: 10.5194/npg-12-157-2005.
Johnston, M.J.S. (1997), Review of electric and magnetic fields accompanying seismic and volcanic activity, Surv. Geophys. 18, 5, 441-476, DOI: 10.1023/ A:1006500408086.
Johnston, M.J.S., Y. Sasai, G.D. Egbert, and R.J. Mueller (2006), Seismomagnetic effects from the long-awaited 28 September 2004 M 6.0 Parkfield earthquake, Bull. Seismol. Soc. Am. 96, 4B, S206-S220; DOI: 10.1785/0120050810.
Kantelhardt, J.W., E. Koscielny-Bunde, H.H.A. Rego, S. Havlin, and A. Bunde (2001), Detecting long-range correlations with detrended fluctuation analysis, Physica A 295, 3-4, 441-454, DOI: 10.1016/S0378-4371(01)00144-3.
Kopytenko, Yu.A., T.G. Matiashvili, P.M. Voronov, E.A. Kopytenko, and O.A. Molchanov (1993), Detection of ultra-low-frequency emissions connected with the Spitak earthquake and its aftershock activity, based on geomagnetic pulsation data at Dusheti and Vardzia, Phys. Earth Planet. Int. 77, 1-2, 85-95, DOI: 10.1016/0031-9201(93)90035-8.
Lucente, F.P., P. De Gori, L. Margheriti, D. Piccinini, M. Di Bona, C. Chiarabba, and N.P. Agostinetti (2010), Temporal variation of seismic velocity and anisotropy before the 2009 MW 6.3 L’Aquila earthquake, Italy, Geology 38, 11, 1015-1018, DOI: 10.1130/G31463.1.
Masci, F. (2010), On claimed ULF seismogenic fractal signatures in the geomagnetic field, J. Geophys. Res. 115, A10236, DOI: 10.1029/2010JA015311.
Masci, F. (2011), On the seismogenic increase of the ratio of the ULF geomagnetic field components, Phys. Earth Planet. Int. 187, 1-2, 19-32, DOI: 10.1016/j.pepi.2011.05.001.
Merzer, M., and S.L. Klemperer (1997), Modeling low-frequency magnetic-field precursors to the Loma Prieta earthquake with a precursory increase in fault-zone conductivity, Pure Appl. Geophys. 150, 2, 217-248, DOI: 10.1007/s000240050074.
Miyahara, S., Y. Tanaka, K. Saita, K. Yumoto, and H. Tachira (1999), On ULF magnetic field variations with the Guam earthquake of 8 August 1993. In: M. Hayakawa (ed.), Atmospheric and Ionospheric Electromagnetic Phenomena Associated with Earthquakes, TERRAPUB, Tokyo, 189-201.
Molchanov, O.A., and M. Hayakawa (1994), Generation of ULF seismogenic electromagnetic emission: a natural consequence of microfracturing process. In: M. Hayakawa, and Y. Fujinawa (eds.), Electromagnetic Phenomena Related to Earthquake Prediction, TERRAPUB, Tokyo, 537-563.
Molchanov, O.A., and M. Hayakawa (1995), Generation of ULF electromagnetic emissions by microfracturing, Geophys. Res. Lett. 22, 22, 3091-3094, DOI: 10.1029/95GL00781.
Molchanov, O.A., and M. Hayakawa (1998), On the generation mechanism of ULF seismogenic electromagnetic emissions, Phys. Earth Planet. Int. 105, 3-4, 201-210, DOI: 10.1016/S0031-9201(97)00091-5.
Molchanov, O.A., Yu.A. Kopytenko, P.M. Voronov, E.A. Kopytenko, T.G. Matiashvili, A.C. Fraser-Smith, and A. Bernardi (1992), Results of ULF magnetic field measurements near the epicenters of the Spitak (Ms =6.9) and Loma Prieta (Ms = 7.1) earthquakes: Comparative analysis, Geophys. Res. Lett. 19, 14, 1495-1498, DOI: 10.1029/92GL01152.
Molchanov, O.A., M. Hayakawa, and V.A. Rafalsky (1995), Penetration characteristics of electromagnetic emissions from an underground seismic source into the atmosphere, ionosphere, and magnetosphere, J. Geophys. Res. 100, A2, 1691-1712, DOI: 10.1029/94JA02524.
Nenovski, P., I. Blagoeva, M. Vellante, U. Villante, K. Schwingenschuh, M. Boudjada, and V. Wesztergom (2007), Identification of sources of geomagnetic variations using Detrended Fluctuation Analysis (DFA), WDS’07 Proceedings of Contributed Papers, Part II, 7-16.
Park, S.K. (1996), Precursors to earthquakes: Seismoelectromagnetic signals, Surv. Geophys. 17, 4, 493-516, DOI: 10.1007/BF01901642.
Park, S.K., M.J.S. Johnston, T.R. Madden, F.D. Morgan, and H.F. Morrison (1993), Electromagnetic precursors to earthquakes in the ULF bands: A review of observations and mechanisms, Rev. Geophys. 31, 2, 117-132, DOI: 10.1029/93RG00820.
Parrot, M., and D. Ouzounov (2006), Surveying the Earth’s electromagnetic environment from space, EOS Trans. AGU 87, 52, 595, DOI: 10.1029/2006EO520004.
Pondrelli, S., S. Salimbeni, A. Morelli, G. Ekström, M. Olivieri, and E. Boschi (2010), Seimic moment tensors of the April 2009, L’Aquila (Central Italy) earthquake sequence, Geophys. J. Int. 180, 1, 238-242, DOI: 10.1111/j.1365-246X.2009.04418.x.
Prattes, G., K. Schwingenschuh, H.U. Eichelberger, W. Magnes, M. Boudjada, M. Stachel, M. Vellante, V. Wesztergom, and P. Nenovski (2008), Multipoint ground-based ULF magnetic field observations in Europe Turing seismic active periods in 2004 and 2005, Nat. Hazards Earth Syst. Sci. 8, 3, 501-507, DOI: 10.5194/nhess-8-501-2008.
Prattes, G., K. Schwingenschuh, H.U. Eichelberger, W. Magnes, M. Boudjada, M. Stachel, M. Vellante, U. Villante, V. Wesztergom, and P. Nenovski (2011), Ultra Low Frequency (ULF) European multi station magnetic field analysis before and during the 2009 earthquake at L’Aquila regarding regional geotechnical information, Nat. Hazards Earth Syst. Sci. 11, 7, 1959-1968, DOI: 10.5194/nhess-11-1959-2011.
Reichhardt, T. (2003), Satellites aim to shake up quake predictions, Nature 424, 478, DOI: 10.1038/424478a.
Savage, M.K. (2010), The role of fluids in earthquake generation in the 2009 Mw 6.3 L’Aquila, Italy, earthquake and its foreshocks, Geology 38, 11, 1055-1056, DOI: 10.1130/focus112010.1.
Simpson, J.J., and A. Taflove (2005), Electrokinetic effect of the Loma Prieta earthquake calculated by an entire-Earth FDTD solution of Maxwell’s equations, Geophys. Res. Lett. 32, L09302, DOI: 10.1029/2005GL022601.
Surkov, V.V., O.A. Molchanov, and M. Hayakawa (2003), Pre-earthquake ULF electromagnetic perturbations as a result of inductive seismomagnetic phenomena during microfracturing, J. Atmos. Sol.-Terr. Phys. 65, 1, 31-46, DOI: 10.1016/S1364-6826(02)00117-7.
Telesca, L. (2010), A non-extensive approach in investigating the seismicity of L’Aquila area (central Italy), struck by the 6 April 2009 earthquake (ML = 5.8), Terra Nova 22, 2, 87-93, DOI: 10.1111/j.1365-3121.2009.00920.x.
Telesca, L., and K. Hattori (2007), Non-uniform scaling behavior in ultra-lowfrequency (ULF) earthquake-related geomagnetic signals, Physica A 384, 2, 522-528, DOI: 10.1016/j.physa.2007.05.040.
Telesca, L., V. Lapenna, M. Macchiato, and K. Hattori (2008), Investigating non uniform scaling behavior in Ultra Low Frequency (ULF) earthquake-related geomagnetic signals, Earth Planet. Sci. Lett. 268, 1-2, 219-224, DOI: 10.1016/j.epsl.2008.01.033.
Thomas, J.N., J.J. Love, and M.J.S. Johnston (2009a), On the reported magnetic precursor of the 1989 Loma Prieta earthquake, Phys. Earth Planet. Int. 173, 3-4, 207-215, DOI: 10.1016/j.pepi.2008.11.014.
Thomas, J.N., J.J. Love, M.J.S. Johnston, and K. Yumoto (2009b), On the reported magnetic precursor of the 1993 Guam earthquake, Geophys. Res. Lett. 36, L16301, DOI: 10.1029/2009GL039020.
Varotsos, P.A., N.V. Sarlis, and E.S. Scordas (2010), Detrended fluctuation analysis of the magnetic and electric field variations that precede rupture, arXiv:0904.2465v10 cond-mat.stat-mech.
Villante, U., and M. Vellante (1998), An analysis of working days contamination in micropulsation measurements, Ann. Geofis. 41, 3, 325-332, DOI: 10.4401/ag-4350.
Villante, U., M. Vellante, A. Piancatelli, A. Di Cienzo, T.L. Zhang, W. Magnes, V. Wesztergom, and A. Meloni (2004), Some aspects of man-made contamination on ULF measurements, Ann. Geophys. 22, 4, 1335-1345, DOI: 10.5194/angeo-22-1335-2004.
Villante, U., M. De Lauretis, C. De Paulis, P. Francia, A. Piancatelli, E. Pietropaolo, M. Vellante, A. Meloni, P. Palangio, K. Schwingenschuh, G. Prattes, W. Magnes, and P. Nenovski (2010), The 6 April 2009 earthquake AT L’Aquila: A preliminary analysis of magnetic field measurements, Nat. Hazards Earth Syst. Sci. 10, 2, 203-214, DOI: 10.5194/nhess-10-203-2010.
Yen, H.-Y., C.-H. Chen, Y.-H. Yeh, J.-Y. Liu, C.-R. Lin, and Y.-B. Tsai (2004), Geomagnetic fluctuations during the 1999 Chi-Chi earthquake in Taiwan, Earth Planets Space 56, 39-45.
Zlotnicki, J., and M. Bof (1998), Volcanomagnetic signals associated with the quasicontinuous activity of the andesitic Merapi volcano, Indonesia: 1990-1995, Phys. Earth Planet. Int. 105, 3-4, 119-130, DOI: 10.1016/S0031-9201(97)00085-X.
Zlotnicki, J., J.L. Le Mouël, R. Kanwar, P. Yvetot, G. Vargemezis, P. Menny, F. Fauquet, and M. Parrot (2006), Ground-based electromagnetic studies combined with remote sensing based on Demeter mission: Away to monitor active faults and volcanoes, Planet. Space Sci. 54, 5, 541-557, DOI: 10.1016/j.pss.2005.10.022.
Qute : Vitkulin, A. V. ,Semenov, V. Y. ,Majewski, E. ,Nenovski, P. ,Nenovski, P. , Scaling characteristics of SEGMA magnetic field data around the Mw 6.3 Aquila earthquake. Acta Geophysica Vol. 61, no. 2/2013