Phenomenology of deep slow earthquake family in southwest Japan: Spatiotemporal characteristics and segmentation

Journal of Geophysical Research: Solid Earth

Volumn 115, Issue 8, 2010, Pages

  Obara, Kazushige ^a,b  

^a NATIONAL RESEARCH INSTITUTE FOR EARTH SCIENCE AND DISASTER PREVENTION   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EARTHQUAKE MAGNITUDE; EARTHQUAKE MECHANISM; EARTHQUAKE RECURRENCE; ESTIMATION METHOD; MICROTREMOR; RECURRENCE INTERVAL;

JAPAN;

EID: 77954368704     PISSN: 21699313     EISSN: 21699356     Source Type: Journal    
DOI: 10.1029/2008JB006048     Document Type: Article

References (51)

1. Aguiar, A. C., T. I. Melbourne, and C. W. Scrivner (2009), Moment release rate of Cascadia tremor constrained by GPS, J. Geophys. Res., 114, B00A05, doi:10.1029/2008JB005909.
2. Ando, M. (1975), Source mechanisms and tectonic significance of historical earthquakes along the Nankai Trough, Japan, Tectonophysics, 27, 119-140, doi:10.1016/0040-1951(75)90102-X.
3. Brown, J., G. C. Beroza, and D. R. Shelly (2008), An autocorrelation method to detect low frequency earthquakes within tremor, Geophys. Res. Lett., 35, L16305, doi:10.1029/2008GL034560.
4. Brudzinski, M. R., and R. M. Allen (2007), Segmentation in episodic tremor and slip all along Cascadia, Geology, 35, 907-910, doi:10.1130/ G23740A.1.
5. Central Disaster Management Council (2001), Report of the specialized investigation committee about Tokai earthquake (in Japanese), Tokyo.
6. Dragert, H., K. Wang, and T. S. James (2001), A silent slip event on the deeper Cascadia subduction interface, Science, 292, 1525-1528, doi:10.1126/science.1060152.
7. Dragert, H., K. Wang, and G. Rogers (2004), Geodetic and seismic signatures of episodic tremor and slip in the northern Cascadia subduction zone, Earth Planets Space, 56, 1143-1150.
8. Earthquake Research Committee (2001), Long-term evaluation of earthquakes in the Nankai Trough (in Japanese), report, Tokyo.
9. Fukuda, M., and T. Sagiya (2007), Precursory slow crustal deformation before short-term slow slip event in January 2006, recorded at Shingu borehole station southern Kii Peninsula, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract T21A-0361.
10. Hiramatsu, Y., T. Watanabe, and K. Obara (2008), Deep low-frequency tremors as a proxy for slip monitoring at plate interface, Geophys. Res. Lett., 35, L13304, doi:10.1029/2008GL034342.
11. Hirose, H., and K. Obara (2005), Repeating short-and long-term slow slip events with deep tremor activity around the Bungo channel region, southwest Japan, Earth Planets Space, 57, 961-972.
12. Hirose, H., and K. Obara (2006), Short-term slow slip and correlated tremor episodes in the Tokai region, central Japan, Geophys. Res. Lett., 33, L17311, doi:10.1029/2006GL026579.
13. Hirose, H., and K. Obara (2010), Recurrence behavior of short-term slow slip and correlated non-volcanic tremor episodes in western Shikoku, southwest Japan, J. Geophys. Res., 115, B00A21, doi:10.1029/ 2008JB006050.
14. Hirose, H., K. Hirahara, F. Kimata, N. Fujii, and S. Miyazaki (1999), A slow thrust slip event following the two 1996 Hyuganada earthquakes beneath the Bungo Channel, southwest Japan, Geophys. Res. Lett., 26, 3237-3240, doi:10.1029/1999GL010999.
15. Hyndman, R. D., M. Yamano, and D. A. Oleskevich (1997), The seismogenic zone of subduction thrust faults, Isl. Arc, 6, 244-260, doi:10.1111/ j.1440-1738.1997.tb00175.x.
16. Ide, S., G. C. Beroza, D. R. Shelly, and T. Uchide (2007), A scaling law for slow earthquakes, Nature, 447, 76-79, doi:10.1038/nature05780.
17. Ito, Y., K. Obara, K. Shiomi, S. Sekine, and H. Hirose (2007), Slow earthquakes coincident with episodic tremors and slow slip events, Science, 315, 503-506, doi:10.1126/science.1134454.
18. Ito, Y., K. Obara, T. Matsuzawa, and T. Maeda (2009), Very low frequency earthquakes as small asperity on plate boundary in transition zone from locked to aseismic slip, J. Geophys. Res., 114, B00A13, doi:10.1029/ 2008JB006036.
19. Kanamori, H. (1977), The energy release in great earthquakes, J. Geophys. Res., 82, 2981-2987, doi:10.1029/JB082i020p02981.
20. Katsumata, A., and N. Kamaya (2003), Low-frequency continuous tremor around the Moho discontinuity away from volcanoes in the southwest Japan, Geophys. Res. Lett., 30(1), 1020, doi:10.1029/2002GL015981.
21. Kobayashi, A., T. Yamamoto, K. Nakamura, and K. Kimura (2006), Shortterm slow slip events detected by the strainmeters in Tokai region in the period from 1984 to 2005 (in Japanese with English abstract), J. Seismol. Soc. Jpn., 59, 19-27.
22. Maeda, T., and K. Obara (2009a), Hypocenter distribution of deep lowfrequency tremors in Nankai subduction zone, Japan, Rep. Natl. Res. Inst. Earth Sci. Disaster Prevent., 74, 13-19.
23. Maeda, T., and K. Obara (2009b), Spatio-temporal distribution of seismic energy radiation from low-frequency tremor in western Shikoku, Japan, J. Geophys. Res., 114, B00A09, doi:10.1029/2008JB006043.
24. Matsubara, M., K. Obara, and K. Kasahara (2009), Three-dimensional P-and S-wave velocity structures beneath the Japan Islands obtained by high-density seismic stations by seismic tomography, Tectonophysics, 472, 6-17, doi:10.1016/j.tecto.2008.06.013.
25. Matsuzawa, T., K. Obara, and T. Maeda (2009), Source duration of deep very low frequency earthquakes in western Shikoku, Japan, J. Geophys. Res., 114, B00A11, doi:10.1029/2008JB006044.
26. Miller, M. M., T. Melbourne, D. J. Johnson, and W. Q. Sumner (2002), Periodic slow earthquakes from the Cascadia subduction zone, Science, 295, 2423, doi:10.1126/science.1071193.
27. Miyazaki, S., and K. Heki (2001), Crustal velocity field of southwest Japan: Subduction and arc-arc collision, J. Geophys. Res., 106(B3), 4305-4326, doi:10.1029/2000JB900312.
28. Obara, K. (2002), Nonvolcanic deep tremor associated with subduction in southwest Japan, Science, 296, 1679-1681, doi:10.1126/science.1070378.
29. Obara, K. (2009), Inhomogeneous distribution of deep slow earthquake activity along the strike of the subducting Philippine Sea plate, Gondwana Res., 16, 512-526, doi:10.1016/j.gr.2009.04.011.
30. Obara, K., and H. Hirose (2006), Non-volcanic deep low-frequency tremors accompanying slow slips in the southwest Japan subduction zone, Tectonophysics, 417, 33-51, doi:10.1016/j.tecto.2005.04.013.
31. Obara, K., and S. Sekine (2009), Characteristic activity and migration of episodic tremor and slow-slip events in central Japan, Earth Planets Space, 61, 853-862.
32. Obara, K., H. Hirose, F. Yamamizu, and K. Kasahara (2004), Episodic slow slip events accompanied by non-volcanic tremors in southwest Japan subduction zone, Geophys. Res. Lett., 31, L23602, doi:10.1029/ 2004GL020848.
33. Obara, K., K. Kasahara, S. Hori, and Y. Okada (2005), A densely distributed high-sensitivity seismograph network in Japan: Hi-net by National Research Institute for Earth Science and Disaster Prevention, Rev. Sci. Instrum., 76, 021301, doi:10.1063/1.1854197.
34. Okada, Y. (1992), Internal deformation due to shear and tensile faults in a half-space, Bull. Seismol. Soc. Am., 82, 1018-1040.
35. Okada, Y., K. Kasahara, S. Hori, K. Obara, S. Sekiguchi, H. Fujiwara, and A. Yamamoto (2004), Recent progress of seismic observation networks in Japan-Hi-net, F-net, K-NET and KiK-net, Earth Planets Space, 56, xv-xxviii.
36. Ozawa, S., M. Murakami, M. Kaidzu, T. Tada, T. Sagiya, Y. Hatanaka, H. Yarai, and T. Nishimura (2002), Detection and monitoring of ongoing aseismic slip in the Tokai region, central Japan, Science, 298, 1009-1012, doi:10.1126/science.1076780.
37. Ozawa, S., S. Miyazaki, Y. Hatanaka, T. Imakiire, M. Kaidzu, and M. Murakami (2003), Characteristic silent earthquakes in the eastern part of the Boso peninsula, Central Japan, Geophys. Res. Lett., 30(6), 1283, doi:10.1029/2002GL016665.
38. Rogers, G., and H. Dragert (2003), Episodic tremor and slip on the Cascadia subduction zone: The chatter of silent slip, Science, 300, 1942-1943, doi:10.1126/science.1084783.
39. Sagiya, T. (2004), Interplate coupling in the Kanto District, central Japan, and the Boso Peninsula silent earthquake in May 1996, Pure Appl. Geophys., 161, 2327-2342, doi:10.1007/s00024-004-2566-6.
40. Sagiya, T., and W. Thatcher (1999), Coseismic slip resolution along a plate boundary megathrust: The Nankai Trough, southwest Japan, J. Geophys. Res., 104, 1111-1129, doi:10.1029/98JB02644.
41. Schwartz, S. Y., and J. M. Rokosky (2007), Slow slip events and seismic tremor at circum-Pacific subduction zones, Rev. Geophys., 45, RG3004, doi:10.1029/2006RG000208.
42. Sekine, S., H. Hirose, and K. Obara (2010), Short-term slow slip events correlated with non-volcanic tremor episodes in southwest Japan, J. Geophys. Res., doi:10.1029/2008JB006059, in press.
43. Shelly, D. R., G. C. Beroza, S. Ide, and S. Nakamula (2006), Low-frequency earthquakes in Shikoku, Japan and their relationship to episodic tremor and slip, Nature, 442, 188-191, doi:10.1038/nature04931.
44. Shelly, D. R., G. C. Beroza, and S. Ide (2007a), Non-volcanic tremor and low-frequency earthquake swarms, Nature, 446, 305-307, doi:10.1038/ nature05666.
45. Shelly, D. R., G. C. Beroza, and S. Ide (2007b), Complex evolution of transient slip derived from precise tremor locations in western Shikoku, Japan, Geochem. Geophys. Geosyst., 8, Q10014, doi:10.1029/2007GC001640.
46. Shiomi, K., M. Matsubara, Y. Ito, and K. Obara (2008), Simple relationship between seismic activity along Philippine Sea slab and geometry of oceanic Moho beneath southwest Japan, Geophys. J. Int., 173, 1018-1029, doi:10.1111/j.1365-246X.2008.03786.x.
47. Suda, N., R. Nakata, and T. Kusumi (2009), An automatic monitoring system for non-volcanic tremors in southwest Japan, J. Geophys. Res., 114, B00A10, doi:10.1029/2008JB006060.
48. Tamura, Y., T. Sato, M. Ooe, and M. Ishiguro (1991), A procedure for tidal analysis with a Bayesian information criterion, Geophys. J. Int., 104, 507-516, doi:10.1111/j.1365-246X.1991.tb05697.x.
49. Ueno, T., T. Maeda, K. Obara, Y. Asano, and T. Takeda (2010), Migration of low-frequency tremors revealed from multiple array analyses in western Shikoku, Japan, J. Geophys. Res., doi:10.1029/2008JB006051, in press.
50. Wessel, P., and W. H. F. Smith (1998), New, improved version of Generic Mapping Tools released, Eos Trans. AGU, 79(47), 579, doi:10.1029/ 98EO00426.
51. Wielandt, E., and G. Streckeisen (1982), The leaf-spring seismometer: Design and performance, Bull. Seismol. Soc. Am., 72, 2349-2367.