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4. Seismology

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  1. In volcanic regions, active earthquake swarms often occur in association with volcanic activity, and their rapid detection and analysis are crucial for volcano disaster prevention. Currently, these processes a...

    Authors: Ahyi Kim, Yuji Nakamura, Yohei Yukutake, Hiroki Uematsu and Yuki Abe
    Citation: Earth, Planets and Space 2023 75:85
  2. The 2021 Mw 7.1 and 2022 Mw 7.4 Fukushima-oki earthquakes ruptured adjacent regions in the subducting slab, which gave us a good opportunity to better understand the rupture process of an intraslab earthquake and...

    Authors: Hiroaki Kobayashi, Tetsushi Watanabe and Kazuki Koketsu
    Citation: Earth, Planets and Space 2023 75:81
  3. 1D velocity profiles at a strong motion station in the northern part of the Kumamoto plain, Japan, were submitted in Step-1 of the blind prediction exercise of strong ground motions in the sixth international ...

    Authors: Kosuke Chimoto, Hiroaki Yamanaka, Seiji Tsuno and Shinichi Matsushima
    Citation: Earth, Planets and Space 2023 75:79
  4. The study of ground resonances is important to assess seismic site amplification and to infer information on the geometrical and mechanical properties of the resonating structures. 1D- and 2D-type resonances i...

    Authors: Giulia Sgattoni, Giovanni Lattanzi and Silvia Castellaro
    Citation: Earth, Planets and Space 2023 75:74
  5. Time-averaged shear-wave velocity to 30 m (VS30) is commonly used in ground motion models as a parameter for evaluating site effects. This study used a collection of boreholes in Beijing, Tianjin, Guangxi, Guangd...

    Authors: Yuting Zhang, Yefei Ren, Ruizhi Wen, Hongwei Wang and Kun Ji
    Citation: Earth, Planets and Space 2023 75:72
  6. Recent laboratory friction experiments on large rock samples revealed that dynamic weakening, a remarkable reduction in the friction coefficient at elevated slip rates, occurs at lower slip rates in larger sam...

    Authors: Hiroyuki Noda
    Citation: Earth, Planets and Space 2023 75:71

    The Correction to this article has been published in Earth, Planets and Space 2023 75:108

  7. To advance the methodology for validating velocity models by waveform comparison, we estimated source parameters for small magnitude earthquakes that can be approximated by point sources. Instead of using publ...

    Authors: Anatoly Petukhin and Yoshinori Iwasaki
    Citation: Earth, Planets and Space 2023 75:69
  8. Site amplification is an important component of strong ground motion prediction as it differs among sites, reflecting its specific local subsurface geology. Here, we confirm that site amplifications are simila...

    Authors: Kenichi Nakano and Hiroshi Kawase
    Citation: Earth, Planets and Space 2023 75:65
  9. This paper describes the methods and results of the strong ground motion simulations for three earthquakes from the 2016 Kumamoto earthquake sequence using corrected empirical Green’s functions. The target ear...

    Authors: Yosuke Nagasaka
    Citation: Earth, Planets and Space 2023 75:61
  10. We report the first experiments, where simultaneous electrical resistivity and elastic wave velocity measurements are acquired during the triaxial deformation of granite under brine-saturated conditions. Both ...

    Authors: Ikuo Katayama, Yu Aoi, Kazumasa Tanimoto, Yuya Akamatsu and Kazuki Sawayama
    Citation: Earth, Planets and Space 2023 75:56
  11. The long-period strong ground motions with periods above 1 s have, in the case of farther or deeper earthquakes, potential to cause serious damage to structures with low eigen frequency, such as long bridges, ...

    Authors: Ivo Oprsal, Haruko Sekiguchi, Tomotaka Iwata and Jan Burjanek
    Citation: Earth, Planets and Space 2023 75:55
  12. An earthquake swarm in the Wakayama prefecture, Japan, is known as the most active and persistent swarm, with > 95,000 earthquakes (M ≥ –1.3) occurring during the 2003–2020 period. However, no systematic studies ...

    Authors: Junichi Nakajima
    Citation: Earth, Planets and Space 2023 75:48
  13. The Yufutsu Plain, a sedimentary basin surrounded by mountains, is located in the southern part of the Ishikari–Yufutsu Lowlands, Hokkaido, Japan. The Hidaka arc–arc collision zone, located in the eastern part...

    Authors: Naofumi Nakagawa, Nobuo Takai and Michiko Shigefuji
    Citation: Earth, Planets and Space 2023 75:42
  14. The study used data acquired by the ESG6 Blind Prediction Step BP1 Working Group for purposes of facilitating a comparison of interpretation methods for obtaining shear-wave velocity profiles (Vs) from array obse...

    Authors: Michael Asten, Aysegul Askan and Shaghayegh Karimzadeh
    Citation: Earth, Planets and Space 2023 75:40
  15. We participated in the blind prediction exercise organized by the committee of the blind prediction experiment during the 6th International Symposium on Effects of Surface Geology on Seismic Motion (CBP-ESG6)....

    Authors: Fumiaki Nagashima, Hiroshi Kawase, Kenichi Nakano and Eri Ito
    Citation: Earth, Planets and Space 2023 75:35
  16. Shikoku island, southwestern Japan lies in the western Nankai Trough and showcases along-strike segmentation of slow earthquake behavior. Whether the spatial variation of tremor behavior reflects the regional ...

    Authors: Kate Huihsuan Chen, Hao-Yu Chiu, Kazushige Obara and Yi-Hung Liu
    Citation: Earth, Planets and Space 2023 75:32
  17. We present our pathway through participation in the blind Kumamoto exercise, particularly the Step 1 of site characterization. The combination of passive and active seismic imaging techniques is used to image ...

    Authors: E. Diego Mercerat and T. Dylan Mikesell
    Citation: Earth, Planets and Space 2023 75:31
  18. The elastodynamic half-space Green’s function has been the subject of research for more than a century since the Lamb’s classical solution. Here, we revisit the problem and present a new closed analytical solu...

    Authors: Francisco J. Sánchez-Sesma, Francisco Luzón, Antonio García-Jerez, Mathieu Perton, Mario A. Sáenz-Castillo and César A. Sierra-Álvarez
    Citation: Earth, Planets and Space 2023 75:29
  19. The 2022 eruption of the Hunga Tonga-Hunga Ha'apai volcano excited an atmospheric Lamb wave, which induced a fast-traveling tsunami. This tsunami was driven by the pressure-forced wave traveling at the speed o...

    Authors: Tung-Cheng Ho, Nobuhito Mori and Masumi Yamada
    Citation: Earth, Planets and Space 2023 75:25
  20. To clarify the characteristics of high-frequency (> 1 Hz) S and S-coda waves at ocean-bottom seismometers (OBSs), we analyzed seismograms observed at permanent OBSs and inland broadband seismometers around the Ki...

    Authors: Shunsuke Takemura, Kentaro Emoto and Lina Yamaya
    Citation: Earth, Planets and Space 2023 75:20
  21. The 2016 Kumamoto earthquakes caused severe damage centering on the Mashiki residential area. The velocity waveforms at station KMMH16 in Mashiki, during the M7.3 mainshock, show large pulses. We found that sever...

    Authors: Anatoly Petukhin, Hiroshi Kawase, Fumiaki Nagashima and Eri Ito
    Citation: Earth, Planets and Space 2023 75:16
  22. In subduction zones, slip deficit monitoring along the plate interface is important for understanding the seismogenesis of megathrust earthquakes. In the last two decades, aseismic slip transients, such as slo...

    Authors: Suguru Yabe, Tadafumi Ochi, Norio Matsumoto, Satoshi Itaba, Yuichi Kitagawa and Takanori Matsuzawa
    Citation: Earth, Planets and Space 2023 75:13
  23. Our recent paper (Nishiyama et al. in Earth Planets Space 73:126, 2021) suggested that the sealing time of a crack-seal event recorded in quartz-filled shear veins in the Makimine mélange may temporally increa...

    Authors: Naoki Nishiyama
    Citation: Earth, Planets and Space 2023 75:3

    The original article was published in Earth, Planets and Space 2023 75:2

  24. A recent paper by Nishiyama et al. (Earth, Planets, and Space 73:126) examined syntectonic quartz veins to constrain temporal variations in the recurrence intervals between slow slip and tremor events. The aut...

    Authors: Randolph T. Williams
    Citation: Earth, Planets and Space 2023 75:2

    The original article was published in Earth, Planets and Space 2021 73:126

    The Comment to this article has been published in Earth, Planets and Space 2023 75:3

  25. S-net is a large-scale ocean bottom (OB) network in the Japan Trench area, consisting of inline-type 150 observatories equipped with seismometers and pressure gauges. Among them, 41 observatories have been bur...

    Authors: Yadab P. Dhakal, Takashi Kunugi, Hiroaki Yamanaka, Atsushi Wakai, Shin Aoi and Azusa Nishizawa
    Citation: Earth, Planets and Space 2023 75:1
  26. The Izu–Bonin–Mariana Subduction System (IBM) is one of the longest subduction zones in the world with no instrumental history of shallow focus, great earthquakes (Mw > 8). Over the last 50 years, researchers ...

    Authors: Walter Szeliga, Rachelle Reisinger and Breanyn MacInnes
    Citation: Earth, Planets and Space 2022 74:193
  27. We propose a statistical analysis method to identify common features of seismic activity that are indistinguishable from most other seismicity, and to find anomalous activity that differs from these common fea...

    Authors: Kohei Nagata, Koji Tamaribuchi, Fuyuki Hirose and Akemi Noda
    Citation: Earth, Planets and Space 2022 74:179
  28. 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 i...

    Authors: Makoto Matsubara, Tatsuya Ishiyama, Tetsuo No, Kenji Uehira, Masashi Mochizuki, Toshihiko Kanazawa, Narumi Takahashi and Shin’ichiro Kamiya
    Citation: Earth, Planets and Space 2022 74:171
  29. The North Anatolian Fault Zone is a dextral system operating between the Eurasian and Anatolian plates in northern Turkey. Across the Marmara Sea south of İstanbul, it deforms at ~18 mm/year slip rate, where t...

    Authors: Murat Şahin, Cenk Yaltırak, Fatih Bulut and Aslı Garagon
    Citation: Earth, Planets and Space 2022 74:167
  30. We conducted centroid moment tensor (CMT) inversion for small-to-moderate aftershocks in the off Ibaraki region of the 2011 off the Pacific coast of Tohoku earthquake. In this study, we used high-frequency (0....

    Authors: Lina Yamaya, Kimihiro Mochizuki, Takeshi Akuhara, Shunsuke Takemura, Masanao Shinohara and Tomoaki Yamada
    Citation: Earth, Planets and Space 2022 74:164

    The Correction to this article has been published in Earth, Planets and Space 2022 74:184

  31. 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
  32. Earthquake and tsunami predictions comprise huge uncertainties, thus necessitating probabilistic assessments for the design of defense facilities and urban planning. In recent years, computer development has a...

    Authors: Toshitaka Baba, Masato Kamiya, Naoki Tanaka, Yusuke Sumida, Ryoichi Yamanaka, Kojiro Watanabe and Hiroyuki Fujiwara
    Citation: Earth, Planets and Space 2022 74:156
  33. New heat flow data corrected for climate change over Northeastern Japan were obtained using the temperature profile of the borehole of the High Sensitivity Seismograph Network (Hi-net). The obtained spatial di...

    Authors: Takumi Matsumoto, Ryuji Yamada and Satoshi Iizuka
    Citation: Earth, Planets and Space 2022 74:155
  34. Tidal gravimeters can detect intermediate-period surface waves with high accuracy. Three gravimetric stations with estimated transfer functions and co-located with seismic stations were selected: two in Belgiu...

    Authors: Kamila Karkowska and Monika Wilde-Piórko
    Citation: Earth, Planets and Space 2022 74:150
  35. Constructing geotechnical information database to collect information such as geophysical survey results and borehole data and then sharing it among researchers and engineers will be useful for developing rese...

    Authors: Isamu Nishimura, Tatsuya Noguchi and Takao Kagawa
    Citation: Earth, Planets and Space 2022 74:148
  36. The mineral veins formed by filling tensile cracks record the accumulation of past hydraulic activities such as fluid migration in the damage zones of a fault. The purpose of this study is to estimate the flui...

    Authors: Hinako Hosono, Takato Takemura, Daisuke Asahina and Makoto Otsubo
    Citation: Earth, Planets and Space 2022 74:141
  37. A series of reclamation works that took place during the twentieth century, almost completely destroyed the dune system that characterized the eastern part of the Grado-Marano perilagoonal area (NE Italy). Bec...

    Authors: Giancarlo Dal Moro and Josef Stemberk
    Citation: Earth, Planets and Space 2022 74:140
  38. On 26 May 1983 the Nihonkai-Chubu earthquake occurred off the western coast of Noshiro City, Akita Prefecture, Japan. The tsunami associated with this earthquake caused widespread damage to the northeastern co...

    Authors: Takashi Chiba and Yuichi Nishimura
    Citation: Earth, Planets and Space 2022 74:133
  39. Great earthquakes have occurred repeatedly along the Nankai Trough, but only for recent events are details known, such as rupture areas and time lags between paired events. It is meaningful for disaster preven...

    Authors: Fuyuki Hirose, Kenji Maeda, Kenichi Fujita and Akio Kobayashi
    Citation: Earth, Planets and Space 2022 74:131

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