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201 result(s) for '"Express Letter"' within Earth, Planets and Space

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  1. An earthquake of JMA magnitude 6.5 (foreshock) hit Kumamoto Prefecture, Japan, at 21:26 JST on April 14, 2016. Subsequently, an earthquake of JMA magnitude 7.3 (main shock) hit Kumamoto and Oita Prefectures a...

    Authors: Yoshiya Hata, Masayuki Yoshimi, Hiroyuki Goto, Takashi Hosoya, Hitoshi Morikawa and Takao Kagawa
    Citation: Earth, Planets and Space 2017 69:72

    The Retraction Note to this article has been published in Earth, Planets and Space 2019 71:61

  2. Allan variances and its related methods are commonly used to analyse a sequence of data in the time domain to measure frequency stability of oscillators. It allows for a determination of noise type as a functi...

    Authors: Kamil Maciuk, Jacek Kudrys, Mohammad Bagherbandi and Igor V. Bezmenov
    Citation: Earth, Planets and Space 2020 72:186
  3. The International Geomagnetic Reference Field (IGRF) model is a combination of the several models developed by independent groups of scientists using different approaches for the selection of input data and me...

    Authors: Valeriy G. Petrov and Tatyana N. Bondar
    Citation: Earth, Planets and Space 2021 73:46
  4. Ocean-bottom pressure gauges of wide and dense ocean-bottom observation networks around Japan, S-net and DONET, observed ocean waves caused by the Tonga eruption that started at approximately 13:00 JST (UTC + ...

    Authors: Hisahiko Kubo, Tatsuya Kubota, Wataru Suzuki, Shin Aoi, Osamu Sandanbata, Naotaka Chikasada and Hideki Ueda
    Citation: Earth, Planets and Space 2022 74:104
  5. The occurrence characteristics of 150-km echoes in low-latitude regions are studied using the Equatorial Atmosphere Radar (EAR) in Indonesia. The long-term observation of the 150-km echoes by the EAR enables u...

    Authors: Tatsuhiro Yokoyama, Rieko Takagi and Mamoru Yamamoto
    Citation: Earth, Planets and Space 2022 74:113
  6. To improve our understanding of the long-term behavior of low-frequency earthquakes (LFEs) along the tremor belt of the Nankai subduction zone, we applied a matched filter technique to continuous seismic data ...

    Authors: Aitaro Kato and Shigeki Nakagawa
    Citation: Earth, Planets and Space 2020 72:128
  7. We applied reverse time migration (RTM) to offshore wide-angle seismic data acquired with airgun shots and sparsely deployed ocean bottom seismographs (OBSs) for reflection imaging of the Moho discontinuity in...

    Authors: Kazuya Shiraishi, Tetsuo No and Gou Fujie
    Citation: Earth, Planets and Space 2022 74:28
  8. Meteotsunamis (forced waves) triggered by atmospheric disturbances of Lamb waves due to the 2022 Hunga–Tonga volcanic eruption have been observed in coastal areas surrounding the Pacific Ocean. However, the sp...

    Authors: Takashi Tonegawa and Yoshio Fukao
    Citation: Earth, Planets and Space 2022 74:159
  9. The Iwo-yama volcano of the Kirishima Volcanic Complex in Japan had a small phreatic eruption in April 2018, which newly formed multiple vents. The activity was recorded by two infrasound sensors and two monit...

    Authors: Dan Muramatsu, Takeshi Matsushima and Mie Ichihara
    Citation: Earth, Planets and Space 2021 73:8
  10. In this study, we investigate the source rupture process of the 2018 Hokkaido Eastern Iburi earthquake in Japan (MJMA 6.7) and how the ground motion can be reproduced using available source and velocity models. F...

    Authors: Hisahiko Kubo, Asako Iwaki, Wataru Suzuki, Shin Aoi and Haruko Sekiguchi
    Citation: Earth, Planets and Space 2020 72:20
  11. We determined focal mechanism solutions of microearthquakes and examined the stress field in the low-seismicity region from southern Hokkaido to eastern Aomori, NE Japan. The stress fields determined in this s...

    Authors: Sumire Maeda, Toru Matsuzawa, Tomomi Okada, Hiroshi Katao, Takeyoshi Yoshida, Masahiro Kosuga and Makoto Otsubo
    Citation: Earth, Planets and Space 2020 72:117
  12. The Global Navigation Satellite System network in Japan detected transient crustal deformation along the Nankai trough, Japan, from June 2018. Time-dependent inversion analysis shows that a long-term slow slip...

    Authors: Shinzaburo Ozawa, Ryouji Kawabata, Kensuke Kokado and Hiroshi Yarai
    Citation: Earth, Planets and Space 2020 72:61
  13. A large eruption of the Hunga Tonga-Hunga Haʻapai volcano in Tonga on January 15, 2022 generated air–sea coupled tsunamis observed at the ocean-bottom pressure sensor network along the Japan Trench (S-net) in ...

    Authors: Yuichiro Tanioka, Yusuke Yamanaka and Tatsuya Nakagaki
    Citation: Earth, Planets and Space 2022 74:61
  14. Distributed acoustic sensing (DAS) is a new method that measures the strain change along a fiber-optic cable and has emerged as a promising geophysical application across a wide range of research and monitorin...

    Authors: Satoshi Ide, Eiichiro Araki and Hiroyuki Matsumoto
    Citation: Earth, Planets and Space 2021 73:63
  15. Reductive dissolution of magnetite is known to occur below the Fe-redox boundary in sediments. In this study, detailed processes associated with biogenic magnetite dissolution are documented. A sediment core f...

    Authors: Toshitsugu Yamazaki
    Citation: Earth, Planets and Space 2020 72:150
  16. Low-frequency tremors have been widely detected in many tectonic zones, and are often located adjacent to megathrust zones, indicating that their spatiotemporal evolution provides important insights into megat...

    Authors: Hidenobu Takahashi, Kazuya Tateiwa, Keisuke Yano and Masayuki Kano
    Citation: Earth, Planets and Space 2021 73:186
  17. Issues of predominant period of ground motion and derived underground velocity structure model are investigated in the coastal plains affected by the shallow soft sedimentary layer after the last ice age. It i...

    Authors: Takao Kagawa and Tatsuya Noguchi
    Citation: Earth, Planets and Space 2022 74:74
  18. On January 23, 2018, a small phreatic eruption (VEI = 1) occurred at the Motoshirane Pyroclastic Cone Group in the southern part of Kusatsu-Shirane Volcano in central Japan. The eruption ejected ash, lapillus,...

    Authors: Nobuko Kametani, Yasuo Ishizaki, Mitsuhiro Yoshimoto, Fukashi Maeno, Akihiko Terada, Ryuta Furukawa, Ryo Honda, Yoshihiro Ishizuka, Jiro Komori, Masashi Nagai and Shinji Takarada
    Citation: Earth, Planets and Space 2021 73:141
  19. Nonlinearities in space and astrophysical plasmas generate a set of magnetic filaments or bundles that have an incompressible sense of fluctuations and propagate highly obliquely to the mean magnetic field. Th...

    Authors: Horia Comişel, Yasuhito Narita and Uwe Motschmann
    Citation: Earth, Planets and Space 2020 72:32
  20. Here we investigate the influence of the lithology and thermal state of the upper crust on earthquake distributions beneath the Wakayama region, southern Honshu, Japan, to better understand the influence of cr...

    Authors: Sumire Maeda, Shinji Toda, Toru Matsuzawa, Makoto Otsubo and Takumi Matsumoto
    Citation: Earth, Planets and Space 2021 73:173

    The Correction to this article has been published in Earth, Planets and Space 2021 73:205

  21. We modeled the vertical deformation detected from a leveling survey in Jigokudani valley, Tateyama volcano, central Japan. In Jigokudani valley, uplift of 4 cm/year was previously detected during the period fr...

    Authors: Kohei Hotta, Shigekazu Kusumoto, Hidenori Takahashi and Yuichi S. Hayakawa
    Citation: Earth, Planets and Space 2022 74:32
  22. Deep low-frequency (DLF) earthquakes have occurred at depths of 10–30 km in the Kirishima volcanic complex, Japan. Here, we investigate the DLF earthquake activity that was associated with the 2018 eruptions, ...

    Authors: Ryo Kurihara and Aitaro Kato
    Citation: Earth, Planets and Space 2022 74:174
  23. Late Quaternary tectonic deformation of coastal areas is usually examined based on the height distribution of paleo-shorelines observed on marine terraces. However, it is difficult to examine deformation along...

    Authors: Hideaki Goto
    Citation: Earth, Planets and Space 2021 73:75
  24. We investigated the relationship between contractional deformation of sedimentary mass in the upper crust and the geodetic strain rate in a high-strain zone (part of the Niigata–Kobe Tectonic Zone) of the mid-...

    Authors: Makoto Otsubo, Ikuo Katayama, Ayumu Miyakawa and Takeshi Sagiya
    Citation: Earth, Planets and Space 2020 72:30
  25. For more than 30 years, a two-step mechanism was used to explain observed Atmospheric band emission (762 nm) in mesopause region. A new mechanism, which leads to the formation of electronically excited molecul...

    Authors: Mykhaylo Grygalashvyly and Gerd Reinhold Sonnemann
    Citation: Earth, Planets and Space 2020 72:187
  26. To clarify the relationship between earthquake occurrence and fluid, we analyzed data from a dense aftershock-observation network with 69 high-gain short-period seismographs installed immediately after the mai...

    Authors: Yoshihisa Iio, Satoshi Matsumoto, Yusuke Yamashita, Shin’ichi Sakai, Kazuhide Tomisaka, Masayo Sawada, Takashi Iidaka, Takaya Iwasaki, Megumi Kamizono, Hiroshi Katao, Aitaro Kato, Eiji Kurashimo, Yoshiko Teguri, Hiroo Tsuda and Takashi Ueno
    Citation: Earth, Planets and Space 2020 72:42
  27. Small-scale seismic velocity heterogeneity has been studied through the calculation of peak amplitude ratio as a means to quantify the strength of seismic wave scattering at volcanoes in Japan. This ratio is d...

    Authors: Gugi Ganefianto, Hisashi Nakahara and Takeshi Nishimura
    Citation: Earth, Planets and Space 2021 73:207
  28. The violent eruption of Hunga Tonga-Hunga Ha’apai volcano on January 15, 2022 induced strong atmospheric disturbances, which traveled around the world as atmospheric Lamb waves. When this wave passed through t...

    Authors: Yuichi Imanishi
    Citation: Earth, Planets and Space 2022 74:54
  29. Newly analysed titanomagnetite–ilmenite (Tim–Ilm) intergrowths from Martian nakhlite meteorite Northwest Africa (NWA) 5790 yielded crystallisation temperature up to 1032 °C and oxygen fugacity (fO2) up to ΔQFM + ...

    Authors: Zilong Wang, Wei Tian and Yankun Di
    Citation: Earth, Planets and Space 2021 73:164
  30. A phreatic eruption suddenly occurred at Motoshirane (Kusatsu-Shirane volcano, Japan) at 10:02 JST on January 23, 2018. A member of the Japan Self-Defense Force was killed by volcanic blocks during training in...

    Authors: Eiichi Sato
    Citation: Earth, Planets and Space 2021 73:117

    The Correction to this article has been published in Earth, Planets and Space 2021 73:128

  31. Several laboratory experimental studies of photoemission characteristics of rocks as they fracture have been conducted to elucidate the mechanism of earthquake lightning (EQL). In most of these studies, granit...

    Authors: Yuji Enomoto, Tsuneaki Yamabe, Kazuyuki Mizuhara, Shigeki Sugiura and Hitoshi Kondo
    Citation: Earth, Planets and Space 2020 72:108
  32. Six wells were continuously monitored in Hokkaido, northern Japan, to relate groundwater level changes to regional seismic activity. Groundwater level changes following the 2018 Hokkaido Eastern Iburi earthqua...

    Authors: Tomo Shibata, Ryo Takahashi, Hiroaki Takahashi, Takanori Kagoshima, Naoto Takahata, Yuji Sano and Daniele L. Pinti
    Citation: Earth, Planets and Space 2020 72:23
  33. Magnetic petrological investigations were conducted on the pumice fall deposits of the 1783 eruption of Asama volcano to examine relationships between bulk magnetic properties and petrological features related...

    Authors: Tatsuo Kanamaru, Kuniyuki Furukawa, Xiangyu Zhao and Yusuke Suganuma
    Citation: Earth, Planets and Space 2022 74:53
  34. We performed zircon U–Pb dating on the Pliocene Tanigawa-dake granites (Makihata and Tanigawa bodies) and the Cretaceous Minakami quartzdiorite, Northeast Japan Arc. Concordia ages were estimated to be 3.95 ± ...

    Authors: Saki Minami, Mitsuhiro Nagata, Shigeru Sueoka, Shoma Fukuda, Yuya Kajita, Yasuhiro Ogita, Saya Kagami, Tatsunori Yokoyama and Takahiro Tagami
    Citation: Earth, Planets and Space 2021 73:231

    The Correction to this article has been published in Earth, Planets and Space 2022 74:129

  35. We present first results for the determination of UT1-UTC using the VLBI Global Observing System (VGOS). During December 2019 through February 2020, a series of 1 h long observing sessions were performed using...

    Authors: Rüdiger Haas, Eskil Varenius, Saho Matsumoto and Matthias Schartner
    Citation: Earth, Planets and Space 2021 73:78
  36. A volcanic ash eruption began on March 1, 2018, and a lava flow was observed on March 6 at Shinmoedake volcano in the Kirishima Volcano Group. The small ash eruptions continued until June 27, 2018. The amounts...

    Authors: Yasuhisa Tajima
    Citation: Earth, Planets and Space 2021 73:156

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