{"_buckets": {"deposit": "fa048adb-c7cb-4929-8bd4-06f1e71236c4"}, "_deposit": {"created_by": 10, "id": "6602", "owners": [10], "pid": {"revision_id": 0, "type": "depid", "value": "6602"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00006602", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1992", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "2", "bibliographicPageEnd": "360", "bibliographicPageStart": "343", "bibliographicVolumeNumber": "40", "bibliographic_titles": [{"bibliographic_title": "Journal of Physics of the Earth", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The detailed three-dimensional P and S wave velocity structure in the focal region of the 1984 Western Nagano Prefecture Earthquake occurring close to an active volcano, Mt. Ontake, central Japan, is derived from a tomographic inversion of travel time data obtained by the 1986 Joint Seismological Research in Western Nagano Prefecture. The data set includes 7,693 P-wave and 6,070 S-wave arrival times observed at 49 stations from 212 local earthquakes and 2 explosions. The velocities in the shallow portion of upper crust are determined at each grid point with its spacing of 1-2 km and good resolutions are obtained from the Earth\u0027s surface to a depth of 4 km. There exist strong lateral heterogeneities especially from the surface to a depth of 1 km. The seismic velocity map obtained in the height of 1 km above sea level well corresponds to the maps of surface geology and Bouguer gravity anomaly. This correspondence, however, is not so clear in the deeper layers. And, the greater the depth, the less heterogeneous the velocity structure. The velocity distribution on the fault seems to correspond to the distribution of dislocation and rupture front estimated from an analysis of strong motion and geodetic data: the low velocity region has the large amount of dislocation and the retarded rupture front. © 1992, The Seismological Society of Japan, The Volcanological Society of Japan, The Geodetic Society of Japan. All rights reserved.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.4294/jpe1952.40.343"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0022-3743", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Hiroo Wada", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Fumiaki Takeuchi", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takeshi Mikumo", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yuji Kurata", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Satoru Kuriyama", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Makoto Koizumi", "creatorNameLang": 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Miura", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Atsushi Nakajima", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Masayuki Suzuki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Toshio Mitsunami", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takuo Okamoto", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Toru Ouchi", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Toshikazu Tanada", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Manabu Yokohama", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Three-Dimensional P and S Wave Velocity Structure in the Focal Region of the 1984 Western Nagano Prefecture Earthquake", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Three-Dimensional P and S Wave Velocity Structure in the Focal Region of the 1984 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