WEKO3
アイテム
Sediment deformation in eastern Sagami Bay revealed by high-density seismic reflection survey
https://nied-repo.bosai.go.jp/records/4001
https://nied-repo.bosai.go.jp/records/4001149c1bf4-d1b3-4afb-84c1-0cdcd5aa7e2b
| Item type | researchmap(1) | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-30 | |||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||
| タイトル | Sediment deformation in eastern Sagami Bay revealed by high-density seismic reflection survey | |||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||
| タイトル | Sediment deformation in eastern Sagami Bay revealed by high-density seismic reflection survey | |||||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||||||
| 著者 |
Yamashita Mikiya
× Yamashita Mikiya
× Kinoshita Masataka
× Kasaya Takafumi
× Takahashi Narumi
× Kaneda Yoshiyuki
|
|||||||||||||||||||||||||
| 抄録 | ||||||||||||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||||||||||||
| 内容記述 | Sagami Bay is known as a seismogenic area occurring large earthquakes repeatedly with M > 7 at the boundary between the Philippine Sea plate and the overriding northeastern Japan with the Quaternary sediments. To investigate this area for understanding the mechanism of repeated large earthquakes, we carried out a high density single-channel seismic reflection survey around Sagami Bay in April - May, 2005 using R/V <i>Kaiyo</i> of Japan Agency for Marine-Earth Science and Technology (JAMSTEC). We propose new growth scenario of a unique reverse fault associated with the 1923 Kanto earthquake in the Sagami Trough in this paper as follows from units of sedimentary layers of the seismic profiles provided tectonics information studies of the clear sedimentary facies is indicated along the Sagami Trough. In particular, the fault with reverse sense displacement of ENE-WSW strike is recognized in the Sunosaki Canyon. This reverse fault is located on the asperity of the large aftershock epicenter (M7.3) in the 1923 Kanto earthquake. There is no active fault in the seafloor of sedimentary layers from this reverse sense displacement to onshore. Thus, this displacement would be developed with the subducting Philippine Sea plate. We propose the growth process of obtained reverse sense displacement in Sagami Trough. | |||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||
| 抄録 | ||||||||||||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||||||||||||
| 内容記述 | Sagami Bay is known as a seismogenic area occurring large earthquakes repeatedly with M > 7 at the boundary between the Philippine Sea plate and the overriding northeastern Japan with the Quaternary sediments. To investigate this area for understanding the mechanism of repeated large earthquakes, we carried out a high density single-channel seismic reflection survey around Sagami Bay in April - May, 2005 using R/V <i>Kaiyo</i> of Japan Agency for Marine-Earth Science and Technology (JAMSTEC). We propose new growth scenario of a unique reverse fault associated with the 1923 Kanto earthquake in the Sagami Trough in this paper as follows from units of sedimentary layers of the seismic profiles provided tectonics information studies of the clear sedimentary facies is indicated along the Sagami Trough. In particular, the fault with reverse sense displacement of ENE-WSW strike is recognized in the Sunosaki Canyon. This reverse fault is located on the asperity of the large aftershock epicenter (M7.3) in the 1923 Kanto earthquake. There is no active fault in the seafloor of sedimentary layers from this reverse sense displacement to onshore. Thus, this displacement would be developed with the subducting Philippine Sea plate. We propose the growth process of obtained reverse sense displacement in Sagami Trough. | |||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||
| 書誌情報 |
ja : JAMSTEC Report of Research and Development en : JAMSTEC Rep. Res. Dev. 巻 17, p. 1-10 |
|||||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||
| 出版者 | Japan Agency for Marine-Earth Science and Technology | |||||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||
| 出版者 | Japan Agency for Marine-Earth Science and Technology | |||||||||||||||||||||||||
| ISSN | ||||||||||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||||||||||
| 収録物識別子 | 1880-1153 | |||||||||||||||||||||||||
| DOI | ||||||||||||||||||||||||||
| 関連識別子 | 10.5918/jamstecr.17.1 | |||||||||||||||||||||||||
