Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
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Comparative Study on the Attenuation of P and S Waves in the Crust of the Southeastern Korea

한국 남동부 지각의 P파와 5파 감쇠구조 비교연구

  • Published : 2001.04.30
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Abstract

The Yangsan fault in the southeastern Korea has been receiving increasing attention in its seismic activity. In this fault region, by using the extended coda-normalization method for 707 seismograms of local earthquakes, were obtained 0.009f$^{-1.05}$ and 0.004f$^{-0.70}$ for fitting values of Q$_p^{-1}$ and Q$_s^{-1}$, respectively. These results indicate that Q$_p^{-1}$ and Q$_s^{-1}$ in the southeastern Korea is the lowest level in the world although the exponent values agree well with those in the other areas. The low Q-1 is not related to the movement of the Yangsan fault but to the tectonically inactive status like a shield area.

지진발생 가능성이 높은 것으로 알려져 있는 한국 남동부 양산단층 지역에 대하여 707 미소지진자료기록에 대하여 Coda 확장규격화법을 적용할 경우, 회귀선값이 Q$_p^{-1}$는 0.009f$^{-1.05}$, Q$_s^{-1}$는 0.004f$^{-0.70}$로 나타난다. 이를 세계 여러지역에서의 조사연구와 대조하여 본 결과, 회귀선식의 지수값은 세계 여러 다른지역과 매우 유사한 반면, Q$_p^{-1}$ 및 Q$_s^{-1}$ 값은 가장 낮은 수준이다. 활성단층과 연관된 지각의 균열을 시사하는 높은 Q$^{-1}$ 값은 한국 남동부에서는 찾아지지 않았으며, 도출된 값은 오히려 순상지와 같이 지진학적으로 안정한 지역과 대응된다.

Keywords

References

  1. 한국지구과학회지 v.20 no.1 양산단층대 남부 상천리 일대의 트렌치조사에 의한 단층특성 규명 경재복;이기화
  2. 지질학회지 v.35 no.5 경상분지에서의 P파 감쇠 김성균;전명순;김준경
  3. 지질학회지 v.36 no.4 한반도 남동부의 Q구조 김성균;박윤경;전명순
  4. 한국원자력 연구소 보고서 한반도 지진파 에너지감쇠 연구 박창업
  5. 지구물리 v.1 no.1 한반도의 역사지진자료 이기화
  6. 한국자원연구소 보고서 지진연구 전명순;지헌철;전정수
  7. 한국지구과학회지 확장 Coda 구격화법에 의한 한반도남동부지역의 P, S파 감쇠구조연구 정태웅;Sato, H.;이기화
  8. 한국자원 연구소 보고서 활성단층 조사평가 연구-한반도 동남부 지역 최위찬;이동영;이봉주;류충렬;최범영;최성자;조등룡;김주용;이창범;기원서;양동윤;김인준;김유숙;유장한;채병곤;김원영;강필종;유일현;이희권
  9. Journal of Geophysical Research v.100 Earthquake source scaling relationship from -1 to 5 ML using seismograms recorded at 2.5km depth Abercrombie, R.E.
  10. Physics of the Earth Planetary Interiors v.21 Attenuation of shear waves in the lithosphere for frequencies from 0.05 to 25 Hz Aki, K.
  11. Bulletin of the Seismological society of America v.67 Local magnitudes, seismic moments, and coda durations for earthquakes near Oroville, Califonia Bakun, W. H.;Lindh, A. G.
  12. geophysical Research Letter v.16 Fault-zone attenuation of high-frequency seismic waves Blakeslee, S.;Malin, P.;Alvarez, M.
  13. Physics of the Earth planetary Interiors v.67 Frequency dependence and spatial distribution of seismic attenuation in France:experimental results and possibe interpretations Campillo, M.;plantet, J. L.
  14. Journal of Geophysical Research v.90 Apparent Q for upper crustal rocks of the entral Rio Grande Rift Carpenter, P.J.;Sanford, A. R.
  15. Cretaceous strata Geology of Korea Chang, K.H.;D.S. Lee(ed.)
  16. Bulletin of the Seismological Society of America v.77 A novel technique for measuring Lg attenuation: results from Eastern Canada betten 1 to 10 hz Chun, K.Y.;West, G.F.;Kokoski, R. J.;Samson, C.
  17. Izvestiya of the Acdemy Science v.9 Frequency dependence of the body-wave absorption in the crust and the upper mantle of the Kuril Island chain Fedotov, S.A.;Boldyrev, S.A.
  18. Journal of Geophysical Research v.65 Attenuation of high-frequency shear waves in the crust:measurements from New York State, South Africa and Southern California Frankel, A.;McGarr, A.;Bicknell, J.;Mori, J.;Seeber, L.;Cranswick, E.
  19. Journal of the Geological Society of Korea v.21 On the reginal heat flow around Korea and reduced heat flow Han, W.;Chapman, D.S
  20. Tectonphysics v.165 An anomalously thick layering of the crust of the Yamato Basin, southeastern Japan Sea: the final stage of backarc spreading Hirata, N.;Tokuyama, H.;Chung, T.W.
  21. Review of Geophysics and Space Physics v.8 Physical mechanism of seismic wave attenuation Jackson, D.D.;Anderson, D.L.
  22. Bulletin of the Seismological Society of America v.84 Frequency-dependent attenuation of shear waves in the crust of the southern Kanto area, Japan Kinoshita, S.
  23. Journal of Physics of the Earth v.40 Dependence of coda Q on frequency and lapse time in the westem Nagion, Central Japan Kosuga, M.
  24. Bulletinof the Seismological Society of America v.79 Q in southem Norway Kvamme, L.B.;Havskov, J.
  25. Proceedings of EESK Conference - Fall v.1998 Q estimates using the coda waves in the Kyungsang Basin Lee, W.S.;Lee, K.
  26. Journal of Geophysical Research v.99 Three-dimensional attenuation tomography at Loma Prieta: Inversion of t* for Q Lees, J.M.;Lindley, G.T.
  27. Bulletin of the Seismological Society of America v.72 Experimental study of the spectral content for shallow earthquakes Modiano, T.;Hatzfeld, D.
  28. Physics of the Earth planetary Interiors v.115 S wave attenuation in the coastal region of Jaliscco-Colima, Mexico Nava, F.A.;Garcia-Arthur, R.;Castro, R. R.;Suarez, C.;Marquez, B.;Nunez-Comu, F.;Saavedra, G.;Toscano, R.
  29. Bulletin of the Seismological Society of America v.82 Source spectra and spectral attenuation of seismic waves from Mexican earthquakes, and evidence of amplification in the hill zone of Mexico City Ordaz, M.;Singh, K.
  30. Journal of Physics of the Earth(supplement) v.26 Major strike-slip faults and their bearing on spreading in the Japan Sea Otsuki, K.;Ehiro, M.
  31. Bulletine of the Seismological Society of America v.84 Spectral features of microearthquakes in volcanic areas: attenuation in the crust and amplityde response of the site at Mt. Etna. Italy patane, D.;Ferrucci, F.;Gresta, S.
  32. Tectonphysics v.38 On the regional variation of heat flow, geotherms, and lithospheric thickness Pollack, H.N.;Chapman, D.S.
  33. Review of Geophysics and Space Physics v.31 Heat flow from the earths interior; analysis of the global data set Pollack, H.N.;Hurter, S.J.;Johnson, J.R.
  34. Seismic wave propagation and scattering in the heterogeneous earth Sato, H.;Fehler, M.C.
  35. Review of Geophysics and Space Physics v.18 The heat flow through oceanic and continental crust and the heat loss of the Earth Sclater, J.G.;jaupart, C.;Galson, D.
  36. Island Arcs, Deep Sea Trenches and Back Arc Basins, Maurice Ewing Series volume 1, AGU Metallogeny of an Andean type continental margin in South Korea, implications for opening of the japan Sea Sillitoe, R.H,;M. Talwani;W.C. Pitman III(eds.)
  37. Journal of Geophysical Research v.91 Attenuation and scattering of broadband P and S waves across North America Taylor, S.R.;Bonner, B.P.;Zandt, G.
  38. Geophysics v.44 attenuation of seismic waves in dry and saturated rocks: I, Laboratory measurements Tokoz, M.N.;Johnston, D.H.;Timur, A.
  39. Seismological Research Letter v.68 Model of strong ground motions from earthquaks in central and eastem North America: best estimates and uncertainties Toro, G.R.;Abrahamson, N.A.;Schneider, J.F.
  40. Seismic attenuation Physocal properties of rocks and minerals Vassiliou, M.;Carlos, A.;Salvado, a.;Tittmann, B.R.;Carmichael, R.S.(ed.)
  41. Geophysics v.47 Seismic attenuation: effect of pore fluids and frictional sliding Winker, K.;Nur, A.
  42. Geophysical Journal Intermational v.114 Frequency-dependent attenuation of P and S waves in the kanto area, Japan, besed on the coda-nomalization method Yoshimoto, K.;Sato, H.;Ohtake, M.
  43. Pure Applied Geophysics v.153 Frequency-dependent attenuation of high-frequency p and S waves in the upper crust in westem Nagano, Japan Yoshimoto, K.;Sato, H.;Ito, Y.;Ito, H.;Ohminato, T.;Ohtake M.