Encyclopedia of Solid Earth Geophysics

Living Edition
| Editors: Harsh K. Gupta

Earthquake, Aftershocks

  • Mian LiuEmail author
  • Seth Stein
Living reference work entry
DOI: https://doi.org/10.1007/978-3-030-10475-7_204-1

Definition

Aftershocks Earthquakes that follow a large earthquake (the mainshock) in an earthquake sequence.

Introduction

Earthquakes typically occur in sequences that may include foreshocks, the mainshock (the largest event or events), and aftershocks. Earthquake sequences without a clear mainshock are called swarms.

Aftershocks generally refer to the smaller earthquakes that follow a mainshock within certain spatial and temporal windows. However, the criteria for choosing these windows are somewhat arbitrary. Typically, aftershocks are defined within an area around the mainshock’s source region (i.e., the ruptured fault segment, which is about 50–100 km long for a magnitude 7.0 earthquake). Most aftershocks occur on the main rupture surface; hence, they are often used to define the complex geometry of the rupture plane. However, in many cases, especially for earthquakes in subduction zones, the aftershock area increases significantly following the mainshock (Tajima and Kanamori 1985)...

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Bibliography

  1. Bath M (1965) Lateral inhomogeneities in the upper mantle. Tectonophysics 2:483–514CrossRefGoogle Scholar
  2. Benioff H (1951) Earthquakes and rock creep. Bull Seismol Soc Am 41:31–62Google Scholar
  3. Beroza GC (1991) Near-source modeling of the Loma Prieta earthquake: evidence for heterogeneous slip and implications for earthquake hazard. Bull Seismol Soc Am 81:1603–1621Google Scholar
  4. Bullen KE, Bolt BA (1947) An introduction to the theory of seismology. Cambridge University Press, New York, p 499Google Scholar
  5. Dieterich J (1979) Modeling of rock friction: 1. Experimental results and constitutive equations. J Geophys Res 84:2161–2168CrossRefGoogle Scholar
  6. Dieterich J (1994) A constitutive law for rate of earthquake production and its application to earthquake clustering. J Geophys Res 99:2601–2618CrossRefGoogle Scholar
  7. Ebel JE, Bonjer K-P, Oncescu MC (2000) Paleoseismicity: seismicity evidence for past large earthquakes. Seismol Res Lett 71:283–294CrossRefGoogle Scholar
  8. Fan W, Shearer PM (2016) Local near instantaneously dynamically triggered aftershocks of large earthquakes. Science 353:1133–1136CrossRefGoogle Scholar
  9. Gerstenberger MC, Wiemer S, Jones LM, Reasenberg PA (2005) Real-time forecasts of tomorrow’s earthquakes in California. Nature 435:328–331CrossRefGoogle Scholar
  10. Gomberg J, Johnson P (2005) Seismology: dynamic triggering of earthquakes. Nature 437:830CrossRefGoogle Scholar
  11. Gutenberg B, Richter CF (1954) Seismicity of the earth and associated phenomena, vol ix. Princeton University Press, Princeton, p 310Google Scholar
  12. Helmstetter A, Sornette D, Grasso J-R (2003) Mainshocks are aftershocks of conditional foreshocks: how do foreshock statistical properties emerge from aftershock laws. J Geophys Res 108:2046Google Scholar
  13. Jones LM (1985) Foreshocks and time-dependent earthquake hazard assessment in southern California. Bull Seismol Soc Am 75:1667–1679Google Scholar
  14. Kagan YY, Jackson DD (1999) Worldwide doublets of large shallow earthquakes. Bull Seismol Soc Am 89:1147–1155Google Scholar
  15. Koper KD, Pankow KL, Pechmann JC, Hale JM, Burlacu R, Yeck WL, Benz HM, Herrmann RB, Trugman DT, Shearer PM (2018) Afterslip enhanced aftershock activity during the 2017 earthquake sequence near Sulphur Peak, Idaho. Geophys Res Lett 45:5352–5361CrossRefGoogle Scholar
  16. Lieber P, Braslau D (1965) On an earthquake and aftershock mechanism relating to a model of the crust and mantle. Report Am-65-8. Office of Research Services, University of California, Berkeley, p 141Google Scholar
  17. Miller SA, Collettini C, Chiaraluce L, Cocco M, Barchi M, Kaus BJP (2004) Aftershocks driven by a high-pressure CO 2 source at depth. Nature 427:724–727CrossRefGoogle Scholar
  18. Nur A, Booker JR (1972) Aftershocks caused by pore fluid flow? Science 175:885–887CrossRefGoogle Scholar
  19. Ogata Y (1998) Space–time point-process models for earthquake occurrences. Ann Inst Stat Math 50:379–402CrossRefGoogle Scholar
  20. Omori F (1894) On the aftershocks of earthquakes. J Coll Sci Imperial UnivTokyo 7:111–200Google Scholar
  21. Page MT, Van Der Elst N, Hardebeck J, Felzer K, Michael AJ (2016) Three ingredients for improved global aftershock forecasts: tectonic region, time-dependent catalog incompleteness, and intersequence variability. Bull Seismol Soc Am 106:2290–2301CrossRefGoogle Scholar
  22. Parsons T (2002) Global Omori law decay of triggered earthquakes: large aftershocks outside the classical aftershock zone. J Geophys Res 107(B9):2199.  https://doi.org/10.1029/2001JB000646CrossRefGoogle Scholar
  23. Reasenberg PA, Jones LM (1989) Earthquake hazard after a mainshock in California. Science 243:1173–1176CrossRefGoogle Scholar
  24. Richter CF (1958) Elementary seismology. W.H. Freeman, San Francisco, 768 ppGoogle Scholar
  25. Ross ZE, Rollins C, Cochran ES, Hauksson E, Avouac JP, Ben-Zion Y (2017) Aftershocks driven by afterslip and fluid pressure sweeping through a fault-fracture mesh. Geophys Res Lett 44:8260–8267CrossRefGoogle Scholar
  26. Ruina A (1983) Slip instability and state variable friction laws. J Geophys Res 88:10359–10370CrossRefGoogle Scholar
  27. Scholz CH (2002) The mechanics of earthquakes and faulting. Cambridge University Press, Cambridge/New York, 471 ppGoogle Scholar
  28. Schorlemmer D, Wiemer S, Wyss M (2005) Variations in earthquake-size distribution across different stress regimes. Nature 437:539–542CrossRefGoogle Scholar
  29. Stein RS (1999) The role of stress transfer in earthquake occurrence. Nature 402:605–609CrossRefGoogle Scholar
  30. Stein S, Liu M (2009) Long aftershock sequences within continents and implications for earthquake hazard assessment. Nature 462:87–89CrossRefGoogle Scholar
  31. Tajima F, Kanamori H (1985) Global survey of aftershock area expansion patterns. Phys Earth Planet Inter 40:77–134CrossRefGoogle Scholar
  32. Utsu T (1961) A statistical study of the occurrence of aftershocks. Geophys Mag 30:521–605Google Scholar
  33. Utsu T (2002) Statistical features of seismicity. In: Lee WHK (ed) International handbook of earthquake & engineering seismology, Part A. Academic, San Diego, pp 719–732CrossRefGoogle Scholar
  34. Wetzler N, Lay T, Brodsky EE, Kanamori H (2018) Systematic deficiency of aftershocks in areas of high coseismic slip for large subduction zone earthquakes. Sci Adv 4.  https://doi.org/10.1126/sciadv.aao3225
  35. Wiemer S, Gerstenberger M, Hauksson E (2002) Properties of the aftershock sequence of the 1999 Mw 7.1 Hector mine earthquake: implications for aftershock hazard. Bull Seismol Soc Am 92:1227–1240CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Geological SciencesUniversity of MissouriColumbiaUSA
  2. 2.Department of Earth and Planetary SciencesNorthwestern UniversityEvanstonUSA