Ploča Okinawa

Ploča Okinawa
Tip	Mikroploča
Smjer kretanja1	jugoistok
Brzina1	54 mm/godina
Površinske strukture	Okinawa, Tajvan
	1U odnosu na Afričku ploču

Ploča Okinawa je manja kontinentalna tektonska ploča na sjevernoj i istočnoj polutci koja se proteže od sjevernog kraja Tajvana do južnog rta otoka Kyūshū.^[1]^[2] Ploča Okinawa odgovorna je za potrese, poput potresa na potresa na otoku Kikai 1911., i razne vrste sporih potresa, uključujući potrese niske frekvencije,^[3] potrese vrlo niske frekvencije,^[4] podrhtavanje,^[5] i događaje sporog klizanja.^[6]

Granice

Istočna strana ploče Okinawa čini konvergentnu granicu s Filipinskom pločom , tvoreći jarak Ryukyu i otočni luk koji tvori otočje Ryū Kyū. Ploča Okinawa je sa zapadne strane omeđena Okinavskim jarkom, zalučnim bazenom i divergentnom granicom s pločom Jangce. Dio južne granice između ploče Okinawa i Filipinske ploče je bivša zona subdukcije koja sada prihvaća koso klizanje i na kojoj se dogodio Velikog tsunami u Yaeyami 1771. godine.^[7]^[8] Sjeverna strana Okinawske ploče omeđena je Amurskom pločom.

Izvori

↑ Sibuet, Jean-Claude; Letouzey, Jean; Barbier, Florence; Charvet, Jacques; Foucher, Jean-Paul; Hilde, Thomas W. C.; Kimura, Masaaki; Chiao, Ling-Yun; Marsset, Bruno. 1987. Back Arc Extension in the Okinawa Trough. Journal of Geophysical Research: Solid Earth (engleski). 92 (B13): 14041–14063. doi:10.1029/JB092iB13p14041. ISSN 2156-2202
↑ Lin, Jing-Yi; Sibuet, Jean-Claude; Lee, Chao-Shing; Hsu, Shu-Kun; Klingelhoefer, Frauke; Auffret, Yves; Pelleau, Pascal; Crozon, Jacques; Lin, Cheng-Horng. 2009. Microseismicity and faulting in the southwestern Okinawa Trough. Tectonophysics. 466 (3–4): 268–280. doi:10.1016/j.tecto.2007.11.030. ISSN 0040-1951
↑ Katsumata, Akio; Kamaya, Noriko. 2003. Low-frequency continuous tremor around the Moho discontinuity away from volcanoes in the southwest Japan. Geophysical Research Letters. 30 (1): 20–1-20-4. doi:10.1029/2002gl015981. ISSN 0094-8276
↑ Nakamura, Mamoru; Sunagawa, Naoya. 24. veljače 2015. Activation of very low frequency earthquakes by slow slip events in the Ryukyu Trench. Geophysical Research Letters. 42 (4): 1076–1082. doi:10.1002/2014gl062929. ISSN 0094-8276
↑ Yamashita, Y.; Yakiwara, H.; Asano, Y.; Shimizu, H.; Uchida, K.; Hirano, S.; Umakoshi, K.; Miyamachi, H.; Nakamoto, M. 7. svibnja 2015. Migrating tremor off southern Kyushu as evidence for slow slip of a shallow subduction interface. Science. 348 (6235): 676–679. doi:10.1126/science.aaa4242. ISSN 0036-8075. PMID 25954006
↑ Nishimura, Takuya. 11. listopada 2014. Short-term slow slip events along the Ryukyu Trench, southwestern Japan, observed by continuous GNSS. Progress in Earth and Planetary Science. 1 (1). doi:10.1186/s40645-014-0022-5. ISSN 2197-4284
↑ Bird, Peter. 2003. An updated digital model of plate boundaries: UPDATED MODEL OF PLATE BOUNDARIES. Geochemistry, Geophysics, Geosystems (engleski). 4 (3). doi:10.1029/2001GC000252
↑ Okamura, Yukinobu; Nishizawa, Azusa; Fujii, Yushiro; Yanagisawa, Hideaki. 11. rujna 2018. Accretionary prism collapse: a new hypothesis on the source of the 1771 giant tsunami in the Ryukyu Arc, SW Japan. Scientific Reports. 8 (1): 13620. doi:10.1038/s41598-018-31956-8. ISSN 2045-2322. PMC 6134009. PMID 30206405

[1] Sibuet, Jean-Claude; Letouzey, Jean; Barbier, Florence; Charvet, Jacques; Foucher, Jean-Paul; Hilde, Thomas W. C.; Kimura, Masaaki; Chiao, Ling-Yun; Marsset, Bruno. 1987. Back Arc Extension in the Okinawa Trough. Journal of Geophysical Research: Solid Earth (engleski). 92 (B13): 14041–14063. doi:10.1029/JB092iB13p14041. ISSN 2156-2202

[2] Lin, Jing-Yi; Sibuet, Jean-Claude; Lee, Chao-Shing; Hsu, Shu-Kun; Klingelhoefer, Frauke; Auffret, Yves; Pelleau, Pascal; Crozon, Jacques; Lin, Cheng-Horng. 2009. Microseismicity and faulting in the southwestern Okinawa Trough. Tectonophysics. 466 (3–4): 268–280. doi:10.1016/j.tecto.2007.11.030. ISSN 0040-1951

[3] Katsumata, Akio; Kamaya, Noriko. 2003. Low-frequency continuous tremor around the Moho discontinuity away from volcanoes in the southwest Japan. Geophysical Research Letters. 30 (1): 20–1-20-4. doi:10.1029/2002gl015981. ISSN 0094-8276

[4] Nakamura, Mamoru; Sunagawa, Naoya. 24. veljače 2015. Activation of very low frequency earthquakes by slow slip events in the Ryukyu Trench. Geophysical Research Letters. 42 (4): 1076–1082. doi:10.1002/2014gl062929. ISSN 0094-8276

[5] Yamashita, Y.; Yakiwara, H.; Asano, Y.; Shimizu, H.; Uchida, K.; Hirano, S.; Umakoshi, K.; Miyamachi, H.; Nakamoto, M. 7. svibnja 2015. Migrating tremor off southern Kyushu as evidence for slow slip of a shallow subduction interface. Science. 348 (6235): 676–679. doi:10.1126/science.aaa4242. ISSN 0036-8075. PMID 25954006

[6] Nishimura, Takuya. 11. listopada 2014. Short-term slow slip events along the Ryukyu Trench, southwestern Japan, observed by continuous GNSS. Progress in Earth and Planetary Science. 1 (1). doi:10.1186/s40645-014-0022-5. ISSN 2197-4284

[7] Bird, Peter. 2003. An updated digital model of plate boundaries: UPDATED MODEL OF PLATE BOUNDARIES. Geochemistry, Geophysics, Geosystems (engleski). 4 (3). doi:10.1029/2001GC000252

[8] Okamura, Yukinobu; Nishizawa, Azusa; Fujii, Yushiro; Yanagisawa, Hideaki. 11. rujna 2018. Accretionary prism collapse: a new hypothesis on the source of the 1771 giant tsunami in the Ryukyu Arc, SW Japan. Scientific Reports. 8 (1): 13620. doi:10.1038/s41598-018-31956-8. ISSN 2045-2322. PMC 6134009. PMID 30206405

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