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Joint interpretation of the size and time distributions of seismic activity around the Hengill triple junction (SW Iceland) between 1993 and 1999

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Abstract

A newly developed clustering algorithm is described which uses the Unified Scaling Law for earthquakes to identify correlations between events that lead to clustering. This algorithm is applied to a dataset from the Hengill triple junction in south west Iceland to separate spatially and temporally overlapping earthquake sequences. We show that the algorithm successfully identifies spatio-temporally clustered events.

A search for certain patterns in the identified clusters is performed. These patterns emerged in numerical simulations of seismicity performed by Hainzl (2003) when viscous coupling was introduced in order to reproduce features of swarm earthquakes. Namely we look for a combination of increased Gutenberg-Richter b-value and decreased exponent of the waiting-time distribution α. This pattern, indicating the strongest influence of viscous coupling on the characteristics of the seismicity, could be localized beneath an extinct volcano approximately 5 km north of an area of recent crustal uplift.

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Abbreviations

USL:

Unified Scaling Law

FMD:

Frequency Magnitude Distribution

GRL:

Gutenberg-Richter Law

References

  • Aki K (1965) Maximum likelihood estimate of b in the formula log N = a , bm and its confidence. B Earthq Res I Tokyo 43: 237–239

    Google Scholar 

  • Bak P, Christensen K, Danon L, Scanlon T (2002) Unified scaling law for earthquakes. Phys Rev Lett 88: 178501

    Article  Google Scholar 

  • Clifton A, Sigmundsson F, Feigl K, Gudmundsson G, Árnadóttir T (2002) Surface effects of faulting and deformation resulting from magma accumulation at the Hengill triple junction, SW Iceland, 1994–1998. J Volcanol Geoth Res 115: 233–255

    Article  Google Scholar 

  • DeMets C, Gordon R, Argus D, Stein S (1994) Effect of recent revisions to the geomagnetic reversal time scale on estimate of current plate motions. Geophys Res Lett 21: 2191–2194

    Article  Google Scholar 

  • Feigl K, Gasperi G, Sigmundsson F, Rigo A (2000) Crustal defomation near Hengill volcano, Iceland 1993-1998: Coupling between magmatic activity and faulting inferred from elastic modeling of satellite radar interferrograms. J Geophys Res 105: 25655–25670

    Article  Google Scholar 

  • Frohlich C, Davis S (1990) Single-link cluster analysis as a method to evaluate spatial and temporal properties of earthquake catalogues. Geophys J Int 100: 19–32

    Article  Google Scholar 

  • Goltz C, Böse M (2002) Configurational entropy of critical earthquake populations. Geophys Res Lett 29: 51/1–4

    Article  Google Scholar 

  • Gutenberg R, Richter C (1944) Frequency of earthquakes in California. Bull Seismol Soc Am 34: 185–188

    Google Scholar 

  • Hainzl S (2003) Self-organzation of earthquake swarms. J Geodyn 1–2: 157–172

    Article  Google Scholar 

  • Kisslinger C, Jones L (1991) Properties of aftershock sequences in Southern California. J Geophys Res 96: 11947–11958

    Article  Google Scholar 

  • Miller AD, Julian BR, and FG, R (1998) Three-dimensional seismic structure and moment tensors of non-double-couple earthquakes at the Hengill-Grensdalur volcanic complex, Iceland. Geophys J Int 133: 309–325

    Article  Google Scholar 

  • Mogi, K (1962) Magnitude-frequency relation for elastic shocks accompanying fractures of various materials and some related problems in earthquakes. Bull Earthq Res Inst Tokyo Univ 40: 831–853

    Google Scholar 

  • Okubo P, Aki K (1987) Fractal geometry in the San Andreas fault system. J Geophys Res 92: 345–355

    Article  Google Scholar 

  • Reasenberg P (1985) Second-order moment of central California seismicity, 1969–1982. J Geophys Res 90: 5479–5495

    Article  Google Scholar 

  • Rögnvaldsson S, Gudmundsson G, Águstsson K, Jakobsdóttir S, Slunga R, Stefánsson R (1998) Overview of 1993–1996 seismicity near Hengill, Vol VÍ-R98006-JA05 of Rit Vedurstofu Íslands Reykjavík: Vedurstofa Íslands

  • Rögnvaldsson S, Árnadóttir T, Áugustsson K, Skaftadóttir T, Gudmundsson G, Björnsson G, Vogfjörd K, Stefánsson R, Bödvarsson R, Slunga R, Jakobsdóttir S, Thorbjarnardóttir B, Erlendsson P, Bergsson B, Ragnarsson S, Halldórsson P, Thorkelsson B, Asgeirsdóttir M (1998) Skjálftahrina í ölfusi ì nóvember, Vol VÍ-R98006-JA05 of Greinargerd Reyhjavìk: Vedurstofa Íslands Icelandic with English summary

  • Sæmundsson K (1967) Vulkanismus und Tektonik des Hengill-Gebietes in Südwest-Island, Acta Naturalia Islandica Reykjavík: Náttúrufræístofnun Íslands

    Google Scholar 

  • Sánchez J, McNutt S, Power J, Wyss M (2004) Spatial variations in the frequency-magnitude distribution of earthquakes at mount Pinatubo volcano. Bull Seismol Soc Am 94(2): 430–438

    Article  Google Scholar 

  • Sánchez R, Newman D, Carreras B (2002) Waiting-time statistics of self-organized-criticality systems. Phys Rev Lett 88: 068302

    Article  Google Scholar 

  • Sigmundsson F, Einarsson P, Rögnvaldsson S, Foulger G, Hodgkinson K, Thorbergsson G (1997) The 1994–1995 seismicity and deformation at the Hengill triple junction, Iceland: Triggering of earthquakes by minor magma injection in a zone of horizontal shear stress. J Geophys Res 102: 15151–15161

    Article  Google Scholar 

  • Steacy S, McCloskey J, Bean C, Ren J (1996) Heterogeneity in a self-organized critical earthquake model. Geophys Res Lett 23: 383–386

    Article  Google Scholar 

  • Stefánsson R, Bödvarsson R, Slunga R, Einarsson P, Jakobsdóttir S, Bungum H, Gregersen S, Havskov J, Hjelme J, Korhonen H (1993) Earthquake prediction research in the South Iceland Seismic Zone and the SIL Project. Bull Seismol Soc Am 83: 696–716

    Google Scholar 

  • Tryggvason A, Rögnvaldsson ST, Flóvenz OG (2002) Three-dimensional imaging of the P- and S-wave velocity structure and earthquake locations beneath Southwest Iceland. Geophys J Int 151: 848–866

    Article  Google Scholar 

  • Utsu T, Ogata Y, Matsu'ura R (1995) The centenary of the Omori formula for a decay law of aftershock activity. J Phys Earth 43: 1–33

    Google Scholar 

  • Wiemer S, Katsumata K (1999) Spatial variability of seismicity parameters in aftershock zones. J Geophys Res 104: 13135–13151

    Article  Google Scholar 

  • Wiemer S, Wyss M (1997) Mapping the frequency-magnitude distribution in asperities: An improved technique to calculate recurrence times? J Geophys Res 102: 15115– 15128

    Article  Google Scholar 

  • Wyss M (ed) (1999) Seismicity Patterns, their Statistical Significance and Physical Meaning, Vol 155 of Pure Appl Geophys Birkäuser Verlag AG

  • Wyss M, Sammis C, Nadeau R, Wiemer S (2004) Fractal dimension and b-value on creeping and locked patches of the San Andreas fault near parkfield, California. Bull Seismol Soc Am 94(2): 410–421

    Article  Google Scholar 

  • Wyss M, Shimazaki K, Wiemer S (1997) Mapping active magma chambers by b values beneath the off-Ito volcano, Japan. J Geophys Res 102: 20413– 20422.

    Article  Google Scholar 

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Authors and Affiliations

  1. Institut für Geophysik und Geologie, Universität Leipzig, Talstrasse 35, 04103, Leipzig, Germany

    Christoph Sens-Schönfelder & Michael Korn

  2. Icelandic Meteorological Office, Bustadavegur 9, 150, Reykjavik, Iceland

    Ragnar Stefánsson

Authors
  1. Christoph Sens-Schönfelder
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  2. Michael Korn
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  3. Ragnar Stefánsson
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Correspondence to Christoph Sens-Schönfelder.

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Sens-Schönfelder, C., Korn, M. & Stefánsson, R. Joint interpretation of the size and time distributions of seismic activity around the Hengill triple junction (SW Iceland) between 1993 and 1999. J Seismol 10, 237–246 (2006). https://doi.org/10.1007/s10950-006-9011-5

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  • DOI: https://doi.org/10.1007/s10950-006-9011-5

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