Skip to main content

Advertisement

We’d like to understand how you use our websites in order to improve them. Register your interest.

Izu detachment hypothesis: A proposal of a unified cause for the Miyake-Kozu event and the Tokai slow event

Abstract

Based on the fact that interseismic deformation of collision zones is generally described by slip along a detachment at depth, I attempt to interpret the deformation of the Izu collision zone in terms of a detachment model. The systematic deviation of the GPS velocities of the Izu Peninsula (Nov. 1998–June 2000) from the Philippine Sea-Eurasian relative plate motions is fitted by the slip on the detachment at a depth of 15–20 km with a rate of 3 cm/yr. On June 26, 2000, seismo-magmatic activity that started near Miyakejima expanded NW by 20 km close to Kozushima in association with dike intrusion over a few months. The horizontal movements associated with this event, however, spread over wide areas in central Honshu. Simple dike intrusion models cannot explain these movements. To explain these, I hypothesize that a 20 cm of rapid slip occurred on the detachment at the time of this event. The abnormal crustal movements in the Tokai-central Honshu-Kanto region then started after the event. I propose that they represent delayed diffusive transfer of the slip on the detachment over surrounding low viscosity layers, such as nearby rupture zones of great earthquakes.

References

  1. Aoki, H., Configuration of the PHS plate beneath Tokai areas and a few characteristics of plate motion, Abstr. Seism. Soc. Jpn., C036, 2003 (in Japanese).

  2. Asano, S., K. Wada, T. Yoshii, M. Hayakawa, Y. Misawa, T. Moriya, T. Kanazawa, H. Murakami, F. Suzuki, R. Kubota, and K. Suyehiro, Crustal structure in the Northern Part of the Philippine Sea Plate as derived from seismic observations of Hatoyama-Off Izu Peninsula explosions, J. Phys. Earth, 33, 173–189, 1985.

    Article  Google Scholar 

  3. Bott, M. H. P. and D. S. Dean, Stress diffusion from plate boundaries, Nature, 243, 339–341, 1973.

    Article  Google Scholar 

  4. Elsasser, W. M., Convection and stress propagation in the upper mantle, in The Application of Modern Physics to the Earth and Planetary Interiors, edited by S. K. Runcorn, pp. 223–246, John Wiley, New York, 1967.

    Google Scholar 

  5. Fujii, Y., Creep dislocation propagation along the East-off-Izu Tectonic Line, Japan, around the year of 1930 and 1976, Jisin, 30, 389–400, 1977 (in Japanese).

    Google Scholar 

  6. Fujii, Y. and K. Nakane, The 1930 Kita-Izu earthquake and related crustal movements in the northern part of the Izu Peninsula, Japan, during pre- and post-seismic period, J. Geod. Soc. Jpn., 24, 59–68, 1978 (in Japanese).

    Google Scholar 

  7. Fukuyama, E., A. Kubo, H. Kawai, and K. Nonomura, Seismic remote monitoring of stress field, Earth Planets Space, 53, 1021–1026, 2001.

    Article  Google Scholar 

  8. Furuya, M., S. Okubo, R. Miyajima, I. Meilano, W. Sun, Y. Tanaka, and T. Miyazaki, Mass budget of the magma flow in the 2000 volcano-seismic activity at Izu-island, Japan, Earth Planets Space, 55, 375–385, 2003.

    Article  Google Scholar 

  9. Geographical Survey Institute, Crustal movements in the Tokai district, Rep. Corrd. Comm. Earthquake Predict., 69, 303–393, 2003.

    Google Scholar 

  10. Hashimoto, M. and D. D. Jackson, Plate tectonics and crustal deformation around the Japanese Island, J. Geophys. Res., 98, 16149–16166, 1993.

    Article  Google Scholar 

  11. Heki, K., G. R. Foulger, B. R. Julian, and C.-H. Jahn, Plate dynamics near divergent boundaries: Geophysical implications of postrifting crustal deformation in NE Iceland, J. Geophys. Res., 98, 14279–14297, 1993.

    Article  Google Scholar 

  12. Ida, Y., Interpretation of seismic and volcanic activities in the Izu block in relation to collision tectonics, J. Phys. Earth, 39, 421–440, 1991.

    Article  Google Scholar 

  13. Ishibashi, K., Specification of a soon-to-occur seismic faulting in the Tokai district, central Japan, based upon seismotectonics, Earthquake Prediction—An International Review, Maurice Ewing Series, 4, 297–332, 1981.

    Google Scholar 

  14. Ishibashi, K., Seismotectonic modeling of the repeating M 7-class disastrous Odawara earthquake in the Izu collision zone, central Japan, Earth Planets Space, 56, 843–858, 2004.

    Article  Google Scholar 

  15. Ishibashi, K. and Y. Itani, Explanation of the westward motion of the Izu Peninsula by collision—An interpretation of GPS velocity vectors, Jisin, 56, 387–390, 2004 (in Japanese).

    Google Scholar 

  16. Ito, T. and S. Yoshioka, A dike intrusion model in and around Miyakejima, Niijima and Kozushima in 2000, Tectonophysics, 359, 171–187, 2002.

    Article  Google Scholar 

  17. Kaidzu, M., T. Nishimura, M. Murakami, S. Ozawa, T. Sagiya, H. Yarai, and T. Imakiire, Detection and monitoring of ongoing aseismic slip in the Tokai region, central Japan, Earth Planets Space, 52, ix–xviii, 2000.

    Article  Google Scholar 

  18. Kamiya, S. and Y. Kobayashi, Seismological evidence for the existence of serpentinized wedge mantle, Geophys. Res. Lett., 27, 819–822, 2000.

    Article  Google Scholar 

  19. Kamiya, S. and Y. Kobayashi, Seismological evidence for the existence of serpentinized wedge mantle in the Tokai district, 2005 (in preparation).

    Google Scholar 

  20. Kasahara, K., J. Yamada, and M. Ando, Crustal movements in the southern Kanto district, and a related working hypothesis, Publications for the 50th Anniversary of the Great Kanto Earthquake, 1923, Earthquake Research Institute, University of Tokyo, 103–116, 1973 (in Japanese).

    Google Scholar 

  21. Koyama, M., Possibilities of simultaneous occurrence of volcanic eruptions and earthquakes in the northern margin of the Philippine Sea plate, Earth Monthly Suppl., 5, 137–144, 1992 (in Japanese).

    Google Scholar 

  22. Koyama, M. and S. Umino, Why does the Higashi-Izu monogenetic volcano group exist in the Izu Peninsula?: relationships between late Quaternary volcanism and tectonics in the northern tip of the Izu-Bonin arc, J. Phys. Earth, 39, 391–420, 1991.

    Article  Google Scholar 

  23. Le Pichon, X. et al., The eastern and western ends of Nankai Troughs: results of Box 5 and Box 7 Kaiko survey, Earth Planet. Sci. Lett., 83, 199–213, 1987.

    Article  Google Scholar 

  24. Lehner, F. K., V. C. Li, and J. R. Rice, Stress diffusion along rupturing plate boundaries, J. Geophys. Res., 86, 6155–6169, 1981.

    Article  Google Scholar 

  25. Matsuda, T., Surface faults associated with Kita-Izu earthquake of 1930 in Izu Peninsula, Japan, in Izu Peninsula, edited by M. Hoshino and T. Aoki, pp. 73–93, Tokai Univ. Press, 1972 (in Japanese).

    Google Scholar 

  26. Matsumura, S., Focal zone of a future Tokai earthquake inferred from the seismicity pattern around the plate interface, Tectonophysics, 273, 271–291, 1997.

    Article  Google Scholar 

  27. Mazzotti, S., P. Henry, and X. Le Pichon, Transient and permanent deformation of central Japan estimated by GPS 2. Strain partitioning and arc-arc collision, Earth Planet. Sci. Lett., 184, 445–469, 2001.

    Article  Google Scholar 

  28. Miyabe, N., On the vertical earth movement in Kwanto districts, Bull. Earthq. Res. Inst., 9, 1–20, 1931.

    Article  Google Scholar 

  29. Miyashita, K., J. Li, and K. Vijaykumar, Tectonic model, explaining the secular crustal deformation in the Kanto-Tokai region, Abstr. Seism. Soc. Jpn., C0034, 2003 (in Japanese).

    Google Scholar 

  30. Nakamura, K., K. Shimazaki, and N. Yonekura, Subduction, bending and eduction. Present and Quaternary tectonics of the northern border of the Philippine Sea plate, Bull. Soc. Geol. France, 26, 221–243, 1984.

    Article  Google Scholar 

  31. Nishimura, T., S. Ozawa, M. Murakami, T. Sagiya, T. Tada, M. Kaidzu, and M. Ukawa, Crustal deformation caused by magma migration in the northern Izu Islands, Japan, Geophys. Res. Lett., 19, 3745–3748, 2001.

    Article  Google Scholar 

  32. Noguchi, S., Geometry of the Philippine Sea slab and the convergent tectonics in the Tokai District, Japan, Jisin, 49, 295–325, 1996 (in Japanese).

    Google Scholar 

  33. Noguchi, S. and S. Sekiguchi, Subduction and deformation of the Philippine Sea and Pacific plates beneath the Kanto region, The Earth Monthly, 23, 733–741, 2001 (in Japanese).

    Google Scholar 

  34. Obara, K., Nonvolcanic deep tremor associated with subduction in southwest Japan, Science, 296, 1679–1681, 2002.

    Article  Google Scholar 

  35. Okada Y., Surface deformation due to shear and tensile faults in a half-space, Bull. Seism. Soc. Am., 75, 1135–1154, 1985.

    Google Scholar 

  36. Ozawa, S., M. Murakami, M. Kaidzu, T. Tada, T. Sagiya, Y. Hatanaka, H. Yarai, and T. Nishimura, Detection and monitoring of ongoing aseismic slip in the Tokai region, central Japan, Science, 298, 1009–1021, 2002.

    Article  Google Scholar 

  37. Raleigh, C. B. and M. S. Paterson, Experimental deformation of serpentinite and its tectonic implications, J. Geophys. Res., 70, 3965–3985, 1965.

    Article  Google Scholar 

  38. Sagiya, T., Interplate coupling in the Tokai District, Central Japan, deduced from continuous GPS data, Geophys. Res. Lett., 26, 2315–2318, 1999.

    Article  Google Scholar 

  39. Sakai, S., T. Yamada, S. Ide, M. Mochizuki, H. Shiobara, T. Urabe, N. Hirata, M. Shinohara, T. Kanazawa, A. Nishizawa, G. Fujie, and H. Mikada, Magma migration from the point of view of seismic activity in the volcanism of Miyake-jima island in 2000, J. Geogr., 110, 145–155, 2001 (in Japanese).

    Article  Google Scholar 

  40. Savage, J. C., A dislocation model of strain accumulation and release at a subduction zone, J. Geophys. Res., 88, 4984–4996, 1983.

    Article  Google Scholar 

  41. Seno, T., Fractal asperities, invasion of barriers, and interplate earthquakes, Earth Planets Space, 55, 649–665, 2003.

    Article  Google Scholar 

  42. Seno, T., Collision vs. subduction: the importance of slab dehydration, in The Seismogenic Zone of Subduction Thrust Faults, edited by T. Dixon and J. C. Moore, Columbia Univ. Press, 2005 (in press).

    Google Scholar 

  43. Seno, T. and T. Yamasaki, Low-frequency tremors, intraslab and interplate earthquakes in Southwest Japan—from a viewpoint of slab dehydration, Geophys. Res. Lett., 30(22), doi:10.1029/2003GL018349, 2003.

    Google Scholar 

  44. Seno, T., S. Stein, and A. E. Gripp, A model for the motion of the Philippine Sea plate consistent with NUVEL-1 and geological data, J. Geophys. Res., 98, 17941–17948, 1993.

    Article  Google Scholar 

  45. Seno, T., T. Sakurai, and S. Stein, Can the Okhotsk plate be discriminated from the North American plate?, J. Geophys. Res., 101, 11305–11315, 1996.

    Article  Google Scholar 

  46. Shimazaki, K. and P. Somerville, Static and dynamic parameters of the Izu-Oshima, Japan Earthquake of January 14, 1978, Bull. Seism. Soc. Am., 69, 1343–1378, 1979.

    Google Scholar 

  47. Somerville, P., The accommodation of plate collision by deformation in the Izu block, Japan, Bull. Earthq. Res. Inst., 53, 629–648, 1978.

    Google Scholar 

  48. Sugimura, A., Plate boundaries around Japan, Kagaku, 42, 192–202, 1972 (in Japanese).

    Google Scholar 

  49. Taira, A., K. T. Pickering, B. F. Windley, and W. Soh, Accretion of Japanese island arcs and implications for the origin of Archean greenstone belts, Tectonics, 11, 1224–1244, 1992.

    Article  Google Scholar 

  50. Takahashi, K. and T. Seno, Simulation of diffusion of crustal deformation caused by disturbances arising at plate boundaries: a case of the detachment beneath the Izu Peninsula, Japan, Earth Planets Space, 57, this issue, 935–941, 2005.

    Article  Google Scholar 

  51. Tsukahara, H. and R. Ikeda, Crustal stress orientation pattern in the central part of Honshu, Japan—stress provinces and their origins, J. Geol. Soc. Jpn., 97, 461–474, 1991 (in Japanese).

    Article  Google Scholar 

  52. Ukawa, M., Collision and fan-shaped compressional stress pattern in the Izu block at the northern edge of the Philippine Sea plate, J. Geophys. Res., 96, 713–728, 1991.

    Article  Google Scholar 

  53. Ukawa, M., E. Fujita, E. Yamamoto, Y. Okada, and M. Kikuchi, The 2000 Miyakejima eruption; Crustal deformation and earthquakes observed by the NIED Miyakejima observation network, Earth Planets Space, 52, xix–xxvi, 2000.

    Article  Google Scholar 

  54. Yamaoka, K., What are occurring beneath the Miyake and Kozu islands?, Kagaku, 70, 926–935, 2000 (in Japanese).

    Google Scholar 

  55. Yamaoka, K., T. Kudo, M. Kawamura, F. Kimata, and N. Fujii, Long-lasting dike intrusion in the 2000 eruption of Miyaaejima volcano—Where did the magma come from?, Bull. Volcanol., 67, 231–242, 2005.

    Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to Tetsuzo Seno.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Seno, T. Izu detachment hypothesis: A proposal of a unified cause for the Miyake-Kozu event and the Tokai slow event. Earth Planet Sp 57, 925–934 (2005). https://doi.org/10.1186/BF03351872

Download citation

Key words

  • Izu Peninsula
  • detachment
  • collision
  • Miyakejima
  • Kozushima
  • Tokai
  • diffusion