{"_buckets": {"deposit": "c50f74f8-2db4-4cb5-bec0-d6f60a55e1a3"}, "_deposit": {"id": "4557", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "4557"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00004557", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2012-05", "bibliographicIssueDateType": "Issued"}, "bibliographicVolumeNumber": "39", "bibliographic_titles": [{"bibliographic_title": "GEOPHYSICAL RESEARCH LETTERS", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "We investigated the migration mode of deep non-volcanic tremor activity beneath Kii Peninsula, southwest Japan. Major tremor episodes are characterized by long-term migration with a velocity of about 10 km/day, propagating along the strike of the subducting plate. Similar tremor migration in Cascadia is accompanied by reverse propagation at speeds on the order of 100 km/day and much faster slip-parallel migration at speeds on the order of 1000 km/day. We systematically searched for migrating tremor with clear linearity in space and time. As a result, we found tremor migrations at speeds ranging from 1 to 60 km/hr depending on the along-dip position in the tremor zone. The observed decrease in migration speed with increasing measurement time scale suggests that migration is controlled by a diffusion process. The along-strike migration at lower speeds, including both forward and backward directions relative to the long-term migration episode, is concentrated at the updip side of the tremor zone, whereas the faster slip-parallel migration is distributed over the entire zone. The long-term migration seems to consist of and be excited by the propagation of along-strike creep at the updip part. The concentration of along-strike migrating tremor sequences at the updip side may reflect the existence of abundant fluid that accumulates at the corner of the mantle wedge. The faster slip-parallel migrations represent projections of along-strike fluctuations in slip pulse propagation controlled by striations along the plate interface. Citation: Obara, K., T. Matsuzawa, S. Tanaka, and T. Maeda (2012), Depth-dependent mode of tremor migration beneath Kii Peninsula, Nankai subduction zone, Geophys. Res. Lett., 39, L10308, doi:10.1029/2012GL051420.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "AMER GEOPHYSICAL UNION", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1029/2012GL051420"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0094-8276", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Kazushige Obara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takanori Matsuzawa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Sachiko Tanaka", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takuto Maeda", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Depth-dependent mode of tremor migration beneath Kii Peninsula, Nankai subduction zone", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Depth-dependent mode of tremor migration beneath Kii Peninsula, Nankai subduction zone", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/4557", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "4557", "relation": {}, "relation_version_is_last": true, "title": ["Depth-dependent mode of tremor migration beneath Kii Peninsula, Nankai subduction zone"], "weko_shared_id": -1}