Seismic velocity structure along the Sea of Japan with large events derived from seismic tomography for whole Japanese Islands including reflection survey data and NIED MOWLAS Hi-net and S-net data
Abstract We conducted seismic tomography for entire Japanese Islands including the Sea of Japan and the Pacific Ocean using arrival times from reflection survey as well as the routine seismic network. We successfully imaged the shallow zone along the Sea of Japan from offshore Yamagata to the Noto P...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-11-01
|
| Series: | Earth, Planets and Space |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40623-022-01724-0 |
| _version_ | 1811186954374479872 |
|---|---|
| author | Makoto Matsubara Tatsuya Ishiyama Tetsuo No Kenji Uehira Masashi Mochizuki Toshihiko Kanazawa Narumi Takahashi Shin’ichiro Kamiya |
| author_facet | Makoto Matsubara Tatsuya Ishiyama Tetsuo No Kenji Uehira Masashi Mochizuki Toshihiko Kanazawa Narumi Takahashi Shin’ichiro Kamiya |
| author_sort | Makoto Matsubara |
| collection | DOAJ |
| description | Abstract We conducted seismic tomography for entire Japanese Islands including the Sea of Japan and the Pacific Ocean using arrival times from reflection survey as well as the routine seismic network. We successfully imaged the shallow zone along the Sea of Japan from offshore Yamagata to the Noto Peninsula by using air gun data. An extremely low-V shallow zone is imaged between Sado Island and Noto Peninsula. We also obtained detailed seismic velocity structure beneath the Pacific Ocean at depths of 20–50 km using S-net data. The 2007 Noto Peninsula, the 2007 offshore Chuetsu, and the 2019 offshore Yamagata earthquakes occurred at the boundary between high-Vp and low-Vp zones. The west side of the hypocenter of the 2019 offshore Yamagata earthquake at depths of 10–30 km has high-V corresponding to the Mogami Trough. This high-V zone passes through Awa Island and reaches Sado Basin between Sado Island and Honshu. A major rift zone in the Tohoku Arc extending from the Akita region to the Niigata region along the coast of Sea of Japan corresponds to high-V lower crust and a shallow Moho. Graphical Abstract |
| first_indexed | 2024-04-11T13:53:44Z |
| format | Article |
| id | doaj.art-7490363aa2114b04b43d07490d991dd0 |
| institution | Directory Open Access Journal |
| issn | 1880-5981 |
| language | English |
| last_indexed | 2024-04-11T13:53:44Z |
| publishDate | 2022-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Earth, Planets and Space |
| spelling | doaj.art-7490363aa2114b04b43d07490d991dd02022-12-22T04:20:24ZengSpringerOpenEarth, Planets and Space1880-59812022-11-0174112710.1186/s40623-022-01724-0Seismic velocity structure along the Sea of Japan with large events derived from seismic tomography for whole Japanese Islands including reflection survey data and NIED MOWLAS Hi-net and S-net dataMakoto Matsubara0Tatsuya Ishiyama1Tetsuo No2Kenji Uehira3Masashi Mochizuki4Toshihiko Kanazawa5Narumi Takahashi6Shin’ichiro Kamiya7National Research Institute for Earth Science and Disaster ResilienceEarthquake Research Institute, The University of TokyoJapan Agency for Marine-Earth Science and TecnologyNational Research Institute for Earth Science and Disaster ResilienceNational Research Institute for Earth Science and Disaster ResilienceAssociation for the Development of Earthquake PredictionNational Research Institute for Earth Science and Disaster ResilienceNational Research Institute for Earth Science and Disaster ResilienceAbstract We conducted seismic tomography for entire Japanese Islands including the Sea of Japan and the Pacific Ocean using arrival times from reflection survey as well as the routine seismic network. We successfully imaged the shallow zone along the Sea of Japan from offshore Yamagata to the Noto Peninsula by using air gun data. An extremely low-V shallow zone is imaged between Sado Island and Noto Peninsula. We also obtained detailed seismic velocity structure beneath the Pacific Ocean at depths of 20–50 km using S-net data. The 2007 Noto Peninsula, the 2007 offshore Chuetsu, and the 2019 offshore Yamagata earthquakes occurred at the boundary between high-Vp and low-Vp zones. The west side of the hypocenter of the 2019 offshore Yamagata earthquake at depths of 10–30 km has high-V corresponding to the Mogami Trough. This high-V zone passes through Awa Island and reaches Sado Basin between Sado Island and Honshu. A major rift zone in the Tohoku Arc extending from the Akita region to the Niigata region along the coast of Sea of Japan corresponds to high-V lower crust and a shallow Moho. Graphical Abstracthttps://doi.org/10.1186/s40623-022-01724-0Seismic tomographySea of JapanFailed riftNIED S-netNIED Hi-net |
| spellingShingle | Makoto Matsubara Tatsuya Ishiyama Tetsuo No Kenji Uehira Masashi Mochizuki Toshihiko Kanazawa Narumi Takahashi Shin’ichiro Kamiya Seismic velocity structure along the Sea of Japan with large events derived from seismic tomography for whole Japanese Islands including reflection survey data and NIED MOWLAS Hi-net and S-net data Earth, Planets and Space Seismic tomography Sea of Japan Failed rift NIED S-net NIED Hi-net |
| title | Seismic velocity structure along the Sea of Japan with large events derived from seismic tomography for whole Japanese Islands including reflection survey data and NIED MOWLAS Hi-net and S-net data |
| title_full | Seismic velocity structure along the Sea of Japan with large events derived from seismic tomography for whole Japanese Islands including reflection survey data and NIED MOWLAS Hi-net and S-net data |
| title_fullStr | Seismic velocity structure along the Sea of Japan with large events derived from seismic tomography for whole Japanese Islands including reflection survey data and NIED MOWLAS Hi-net and S-net data |
| title_full_unstemmed | Seismic velocity structure along the Sea of Japan with large events derived from seismic tomography for whole Japanese Islands including reflection survey data and NIED MOWLAS Hi-net and S-net data |
| title_short | Seismic velocity structure along the Sea of Japan with large events derived from seismic tomography for whole Japanese Islands including reflection survey data and NIED MOWLAS Hi-net and S-net data |
| title_sort | seismic velocity structure along the sea of japan with large events derived from seismic tomography for whole japanese islands including reflection survey data and nied mowlas hi net and s net data |
| topic | Seismic tomography Sea of Japan Failed rift NIED S-net NIED Hi-net |
| url | https://doi.org/10.1186/s40623-022-01724-0 |
| work_keys_str_mv | AT makotomatsubara seismicvelocitystructurealongtheseaofjapanwithlargeeventsderivedfromseismictomographyforwholejapaneseislandsincludingreflectionsurveydataandniedmowlashinetandsnetdata AT tatsuyaishiyama seismicvelocitystructurealongtheseaofjapanwithlargeeventsderivedfromseismictomographyforwholejapaneseislandsincludingreflectionsurveydataandniedmowlashinetandsnetdata AT tetsuono seismicvelocitystructurealongtheseaofjapanwithlargeeventsderivedfromseismictomographyforwholejapaneseislandsincludingreflectionsurveydataandniedmowlashinetandsnetdata AT kenjiuehira seismicvelocitystructurealongtheseaofjapanwithlargeeventsderivedfromseismictomographyforwholejapaneseislandsincludingreflectionsurveydataandniedmowlashinetandsnetdata AT masashimochizuki seismicvelocitystructurealongtheseaofjapanwithlargeeventsderivedfromseismictomographyforwholejapaneseislandsincludingreflectionsurveydataandniedmowlashinetandsnetdata AT toshihikokanazawa seismicvelocitystructurealongtheseaofjapanwithlargeeventsderivedfromseismictomographyforwholejapaneseislandsincludingreflectionsurveydataandniedmowlashinetandsnetdata AT narumitakahashi seismicvelocitystructurealongtheseaofjapanwithlargeeventsderivedfromseismictomographyforwholejapaneseislandsincludingreflectionsurveydataandniedmowlashinetandsnetdata AT shinichirokamiya seismicvelocitystructurealongtheseaofjapanwithlargeeventsderivedfromseismictomographyforwholejapaneseislandsincludingreflectionsurveydataandniedmowlashinetandsnetdata |