{"title":"Correction: The effect of initial and prior models on phase tensor inversion of distorted magnetotelluric data","authors":"T. Rung-Arunwan, W. Siripunvaraporn, H. Utada","doi":"10.1186/s40623-023-01922-4","DOIUrl":"https://doi.org/10.1186/s40623-023-01922-4","url":null,"abstract":"","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"100 1","pages":"1-2"},"PeriodicalIF":3.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139218320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Toru Nakajima, S. Sueoka, Mitsuhiro Nagata, Barry P. Kohn, N. Ramos, H. Tsutsumi, T. Tagami
{"title":"First report of geo- and thermochronological results from the Cordillera Central, Luzon, Philippines","authors":"Toru Nakajima, S. Sueoka, Mitsuhiro Nagata, Barry P. Kohn, N. Ramos, H. Tsutsumi, T. Tagami","doi":"10.1186/s40623-023-01927-z","DOIUrl":"https://doi.org/10.1186/s40623-023-01927-z","url":null,"abstract":"","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"324 ","pages":"1-11"},"PeriodicalIF":3.0,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139240596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Shinbori, Yuichi Otsuka, T. Sori, M. Nishioka, P. Septi, Takuo Tsuda, Nozomu Nishitani, A. Kumamoto, Fuminori Tsuchiya, S. Matsuda, Y. Kasahara, A. Matsuoka, Satoko Nakamura, Y. Miyoshi, Iku Shinohara
{"title":"New aspects of the upper atmospheric disturbances caused by the explosive eruption of the 2022 Hunga Tonga–Hunga Ha’apai volcano","authors":"A. Shinbori, Yuichi Otsuka, T. Sori, M. Nishioka, P. Septi, Takuo Tsuda, Nozomu Nishitani, A. Kumamoto, Fuminori Tsuchiya, S. Matsuda, Y. Kasahara, A. Matsuoka, Satoko Nakamura, Y. Miyoshi, Iku Shinohara","doi":"10.1186/s40623-023-01930-4","DOIUrl":"https://doi.org/10.1186/s40623-023-01930-4","url":null,"abstract":"","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"183 ","pages":"1-27"},"PeriodicalIF":3.0,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139247908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takeshi Hasegawa, Bunta Kikuchi, Shohei Shibata, Yuhji Yamamoto, T. Imura, Masao Ban, K. Tsunematsu, Chie Kusu, Makoto Okada, Tsukasa Ohba
{"title":"Paleomagnetism and paleomagnetic dating to large volcanic bombs: an example from the historical eruption of Azuma–Jododaira volcano, NE Japan","authors":"Takeshi Hasegawa, Bunta Kikuchi, Shohei Shibata, Yuhji Yamamoto, T. Imura, Masao Ban, K. Tsunematsu, Chie Kusu, Makoto Okada, Tsukasa Ohba","doi":"10.1186/s40623-023-01931-3","DOIUrl":"https://doi.org/10.1186/s40623-023-01931-3","url":null,"abstract":"","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"83 3","pages":"1-12"},"PeriodicalIF":3.0,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139268946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Akiko Miyazaki, T. Yada, K. Yogata, K. Hatakeda, A. Nakato, M. Nishimura, Kana Nagashima, K. Kumagai, Y. Hitomi, H. Soejima, Rui Tahara, R. Kanemaru, Arisa Nakano, M. Yoshitake, A. Iwamae, S. Furuya, A. Tsuchiyama, S. Tachibana, T. Michikami, Tatsuaki Okada, M. Abe, T. Usui
{"title":"A newly revised estimation of bulk densities and examination of the shape of individual Ryugu grains","authors":"Akiko Miyazaki, T. Yada, K. Yogata, K. Hatakeda, A. Nakato, M. Nishimura, Kana Nagashima, K. Kumagai, Y. Hitomi, H. Soejima, Rui Tahara, R. Kanemaru, Arisa Nakano, M. Yoshitake, A. Iwamae, S. Furuya, A. Tsuchiyama, S. Tachibana, T. Michikami, Tatsuaki Okada, M. Abe, T. Usui","doi":"10.1186/s40623-023-01904-6","DOIUrl":"https://doi.org/10.1186/s40623-023-01904-6","url":null,"abstract":"","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"2 6","pages":"1-18"},"PeriodicalIF":3.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139273038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Yada, M. Abe, M. Nishimura, Hirotaka Sawada, R. Okazaki, Yoshinori Takano, K. Sakamoto, Tatsuaki Okada, A. Nakato, M. Yoshitake, Y. Nakano, K. Yogata, Akiko Miyazaki, S. Furuya, A. Iwamae, Shunichi Nakatsubo, K. Hatakeda, Y. Hitomi, K. Kumagai, Shino Suzuki, Y. Miura, Motoo Ito, N. Tomioka, M. Uesugi, Y. Karouji, K. Uesugi, Naoki Shirai, Akira Yamaguchi, N. Imae, H. Naraoka, Yuhji Yamamoto, S. Tachibana, H. Yurimoto, T. Usui
{"title":"A curation for uncontaminated Hayabusa2-returned samples in the extraterrestrial curation center of JAXA: from the beginning to present day","authors":"T. Yada, M. Abe, M. Nishimura, Hirotaka Sawada, R. Okazaki, Yoshinori Takano, K. Sakamoto, Tatsuaki Okada, A. Nakato, M. Yoshitake, Y. Nakano, K. Yogata, Akiko Miyazaki, S. Furuya, A. Iwamae, Shunichi Nakatsubo, K. Hatakeda, Y. Hitomi, K. Kumagai, Shino Suzuki, Y. Miura, Motoo Ito, N. Tomioka, M. Uesugi, Y. Karouji, K. Uesugi, Naoki Shirai, Akira Yamaguchi, N. Imae, H. Naraoka, Yuhji Yamamoto, S. Tachibana, H. Yurimoto, T. Usui","doi":"10.1186/s40623-023-01924-2","DOIUrl":"https://doi.org/10.1186/s40623-023-01924-2","url":null,"abstract":"","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"8 1-2","pages":"1-32"},"PeriodicalIF":3.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139271690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Distinct rupture processes on a fault where M6-class earthquakes reoccurred in a short period: analysis of the 2011 and 2016 Northern Ibaraki, Japan, earthquakes using near-field waveforms","authors":"Kazuhito Hikima","doi":"10.1186/s40623-023-01928-y","DOIUrl":"https://doi.org/10.1186/s40623-023-01928-y","url":null,"abstract":"Abstract Crustal earthquakes are generally recognized as having recurrence periods of more than 1000 years. However, in northern Ibaraki Prefecture, Japan, two moderate-sized earthquakes occurred on almost the same fault plane in 2011 and 2016. Moreover, it has been reported that the slip distributions derived from crustal deformation data from these two events are almost identical. We performed a near-field waveform inversion analysis to estimate the details of the spatiotemporal distribution of the co-seismic rupture. Our results reveal large slip areas during each earthquake at different locations across the bend of the fault plane. These results indicate that the shear stress of the fault area where the main slip occurred during the 2011 event was not rebuilt in such a short period, a phenomenon that had not previously been discussed for this sequence. Our results also suggest that the fault geometry affected such complex fault ruptures. Graphical Abstract","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"44 19","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134953592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hao Zhang, Yang Shi, Hongjun He, Hanwen Ji, Yu Miao
{"title":"Estimating frequency-dependent shear wave velocity in near-surface sediment based on seismic interferometry","authors":"Hao Zhang, Yang Shi, Hongjun He, Hanwen Ji, Yu Miao","doi":"10.1186/s40623-023-01918-0","DOIUrl":"https://doi.org/10.1186/s40623-023-01918-0","url":null,"abstract":"Abstract Near-surface seismic shear wave is a basic tool for seismic investigations. However, its frequency-dependent property is not fully investigated, especially by the in situ observation method. Here, we develop the seismic interferometry with a moving frequency window to process the natural seismic signals recorded by the KiK-net network. It is observed that the phase velocity of the shear wave decreases sharply as the frequency increases in the low-frequency range, and remains constant in the high-frequency range. The observed dispersion phenomenon presents a challenge to existing site effect prediction theories, while also providing an observational reference for understanding how the shear wave propagates in near-surface sediment. Graphical Abstract","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"76 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136382220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A review of shallow slow earthquakes along the Nankai Trough","authors":"Shunsuke Takemura, Yohei Hamada, Hanaya Okuda, Yutaro Okada, Kurama Okubo, Takeshi Akuhara, Akemi Noda, Takashi Tonegawa","doi":"10.1186/s40623-023-01920-6","DOIUrl":"https://doi.org/10.1186/s40623-023-01920-6","url":null,"abstract":"Abstract Slow earthquakes occur at deep and shallow plate boundaries along the Nankai Trough. Deep slow earthquakes are continuously distributed along the 30–40 km depth contours of the upper surface of the subducted Philippine Sea Plate. In contrast, shallow slow earthquakes occur in limited regions: Hyuga-nada, off Cape Muroto, and southeast off the Kii Peninsula. This review provides an overview of the up-to-date seismological, geodetic, geological, and experimental results in the shallow Nankai area for a unified understanding of the spot-like occurrence of shallow slow earthquakes. Shallow slow earthquakes tend to be distributed in transitional regions between the frictionally locked and stably sliding zones on the plate boundary. Based on geological and experimental studies, the lithology of incoming sediments and their friction coefficients can be variable along the Nankai Trough. Laboratory friction experiments revealed that sediments under shallow plate boundary conditions often exhibit positive ( a − b ) values, while negative ( a − b ) is possible via several processes. Subducted seamounts create complex fracture networks and stress shadows in their surrounding areas; however, not all subducted seamounts are related to shallow slow earthquake activities. This incomplete correlation suggests that alternative factors are required to explain the spot-like distribution of shallow slow earthquakes in the Nankai subduction zone. High pore fluid pressure conditions around shallow slow earthquake zones were interpreted based on seismological structural studies. In addition, ambient noise monitoring revealed temporal changes in seismic velocity structures associated with shallow slow earthquake migrations. This result suggests a close link between pore fluid migration and shallow slow earthquake episodes. Because transient changes in pore fluid pressure can lead to various slip behaviors, the episodic migration of pore fluid around the plate boundary could promote shallow slow earthquake activity along the Nankai Trough. Graphical Abstract","PeriodicalId":11409,"journal":{"name":"Earth, Planets and Space","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135883484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}