Boso triple junction: Difference between revisions
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There is at least one other trench-trench-trench triple junction on Wikipedia (possibly two, counting what's under Mount Fuji), so I want to say this is inaccurate, but don't have the geologic knowledge. |
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'''Boso Triple Junction''' (also known as '''Off-Boso Triple Junction''') is a [[triple junction]] off the coast of Japan; it is the only known example of a [[Oceanic trench|trench]]-trench-trench triple junction on the Earth. It is the meeting point of the [[North American Plate]] (represented by the [[Okhotsk Plate]]) to the north, the [[Pacific Plate]] to the east and the [[Philippine Sea Plate]] to the south.<ref name="RenardEtAl1987">{{cite journal | url=http://www.eri.u-tokyo.ac.jp/people/seno/Papers/epsl1987.renard.pdf | title=Trench triple junction off Central Japan—preliminary results of French-Japanese 1984 Kaiko cruise, Leg 2 | author=Renard, V.|display-authors=et al | journal=Earth and Planetary Science Letters | year=1987 | volume=83 | issue=1–4 | pages=243–256 | doi=10.1016/0012-821x(87)90069-0 | bibcode=1987E&PSL..83..243R}}</ref> |
'''Boso Triple Junction''' (also known as '''Off-Boso Triple Junction''') is a [[triple junction]] off the coast of Japan; it is the only known example of a [[Oceanic trench|trench]]-trench-trench triple junction on the Earth{{Citation needed|date=July 2019}}. It is the meeting point of the [[North American Plate]] (represented by the [[Okhotsk Plate]]) to the north, the [[Pacific Plate]] to the east and the [[Philippine Sea Plate]] to the south.<ref name="RenardEtAl1987">{{cite journal | url=http://www.eri.u-tokyo.ac.jp/people/seno/Papers/epsl1987.renard.pdf | title=Trench triple junction off Central Japan—preliminary results of French-Japanese 1984 Kaiko cruise, Leg 2 | author=Renard, V.|display-authors=et al | journal=Earth and Planetary Science Letters | year=1987 | volume=83 | issue=1–4 | pages=243–256 | doi=10.1016/0012-821x(87)90069-0 | bibcode=1987E&PSL..83..243R}}</ref> |
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== Name origin == |
== Name origin == |
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Revision as of 00:28, 8 July 2019
 | This article needs additional citations for verification. (February 2018) |
Boso Triple Junction Boso Triple Junction (also known as Off-Boso Triple Junction) is a triple junction off the coast of Japan; it is the only known example of a trench-trench-trench triple junction on the Earth[citation needed]. It is the meeting point of the North American Plate (represented by the Okhotsk Plate) to the north, the Pacific Plate to the east and the Philippine Sea Plate to the south.[1]
Name origin
The Boso Triple Junction is named after the Bōsō Peninsula.
Formation
It is formed from the junction of the Izu-Bonin-Mariana Arc where the Izu-Bonin Trench meets with the Japan Trench and the Sagami Trench.
Risks
Located some 300 kilometres (190 mi) from the Boso triple junction, Tokyo is subject to quakes and tsunamis generated from slips along this junction. Furthermore, there is a large populated region along the coast of the main island that would also be subject to damage. This junction probably has the highest associated insurance risk in the world, due to its proximity to extensive urban development.[citation needed]
The 2011 Tōhoku earthquake and tsunami were generated along the Japan trench well to the north of the junction and did not involve the other two trenches, although quakes that may have been aftershocks have been observed there[clarification needed].
References
- ^ Renard, V.; et al. (1987). "Trench triple junction off Central Japan—preliminary results of French-Japanese 1984 Kaiko cruise, Leg 2" (PDF). Earth and Planetary Science Letters. 83 (1–4): 243–256. Bibcode:1987E&PSL..83..243R. doi:10.1016/0012-821x(87)90069-0.
| Triple trench | |
|---|---|
| Triple ridge | |
| Triple fault | |
| Trench–trench–ridge | |
| Fault–fault–trench | |
| Ridge–fault–fault | |
| Ridge–trench–fault | |
| See also | |
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