Search Results - "ARAKI, Eiichiro"

Very broadband strain-rate measurements along a submarine fiber-optic cable off Cape Muroto, Nankai subduction zone, Japan by Ide, Satoshi, Araki, Eiichiro, Matsumoto, Hiroyuki

“…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…”
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Shallow very-low-frequency earthquakes accompany slow slip events in the Nankai subduction zone by Nakano, Masaru, Hori, Takane, Araki, Eiichiro, Kodaira, Shuichi, Ide, Satoshi

“…Recent studies of slow earthquakes along plate boundaries have shown that tectonic tremor, low-frequency earthquakes, very-low-frequency events (VLFEs), and…”
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Detection of hydroacoustic signals on a fiber-optic submarine cable by Matsumoto, Hiroyuki, Araki, Eiichiro, Kimura, Toshinori, Fujie, Gou, Shiraishi, Kazuya, Tonegawa, Takashi, Obana, Koichiro, Arai, Ryuta, Kaiho, Yuka, Nakamura, Yasuyuki, Yokobiki, Takashi, Kodaira, Shuichi, Takahashi, Narumi, Ellwood, Robert, Yartsev, Victor, Karrenbach, Martin

“…A ship-based seismic survey was conducted close to a fiber-optic submarine cable, and 50 km-long distributed acoustic sensing (DAS) recordings with air-gun…”
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Recurring and triggered slow-slip events near the trench at the Nankai Trough subduction megathrust by Araki, Eiichiro, Saffer, Demian M., Kopf, Achim J., Wallace, Laura M., Kimura, Toshinori, Machida, Yuya, Ide, Satoshi, Davis, Earl

“…The discovery of slow earthquakes has revolutionized the field of earthquake seismology. Defining the locations of these events and the conditions that favor…”
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Seismic Evidence for Sharp Lithosphere-Asthenosphere Boundaries of Oceanic Plates by Kawakatsu, Hitoshi, Kumar, Prakash, Takei, Yasuko, Shinohara, Masanao, Kanazawa, Toshihiko, Araki, Eiichiro, Suyehiro, Kiyoshi

“…The mobility of the lithosphere over a weaker asthenosphere constitutes the essential element of plate tectonics, and thus the understanding of the processes…”
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Distribution of very low frequency earthquakes in the Nankai accretionary prism influenced by a subducting-ridge by Toh, Akiko, Obana, Koichiro, Araki, Eiichiro

“…We investigated the distribution of very low frequency earthquakes (VLFEs) that occurred in the shallow accretionary prism of the eastern Nankai trough during…”
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Sporadic low-velocity volumes spatially correlate with shallow very low frequency earthquake clusters by Tonegawa, Takashi, Araki, Eiichiro, Kimura, Toshinori, Nakamura, Takeshi, Nakano, Masaru, Suzuki, Kensuke

“…A low-velocity zone (LVZ) has been detected by seismic exploration surveys within the Nankai accretionary prism toe off the Kii Peninsula, southwestern Japan,…”
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Observation of Shallow Slow Earthquakes by Distributed Acoustic Sensing Using Offshore Fiber‐Optic Cable in the Nankai Trough, Southwest Japan by Baba, Satoru, Araki, Eiichiro, Yamamoto, Yojiro, Hori, Takane, Fujie, Gou, Nakamura, Yasuyuki, Yokobiki, Takashi, Matsumoto, Hiroyuki

“…Off Cape Muroto area, along the Nankai Trough in southwest Japan, is a typical area with adjacent occurrences of slow and megathrust earthquakes…”
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Seismic observation using distributed acoustic sensing around the Tsugaru Strait at the Japan and Kuril Trenches, northeastern Japan by Baba, Satoru, Araki, Eiichiro, Yokobiki, Takashi, Kawamata, Kei, Uchiyama, Keisuke, Yoshizuka, Takuji

“…As megathrust earthquakes often have source areas in offshore regions, offshore seismic observations are important. However, the detection capability and…”
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Correction: Seismic observation using distributed acoustic sensing around the Tsugaru Strait at the Japan and Kuril Trenches, northeastern Japan by Baba, Satoru, Araki, Eiichiro, Yokobiki, Takashi, Kawamata, Kei, Uchiyama, Keisuke, Yoshizuka, Takuji

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Drift Characteristics of DONET Pressure Sensors Determined From In-Situ and Experimental Measurements by Matsumoto, Hiroyuki, Araki, Eiichiro

“…DONET, the dense ocean-floor network system for earthquakes and tsunamis, began operations in the Nankai Trough, SW Japan, in 2010. The present study focuses…”
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Precise tilt measurement by seafloor borehole tiltmeters at the Nankai Trough subduction zone by Tsuji, Shuhei, Araki, Eiichiro, Yokobiki, Takashi, Nishida, Shuhei, Machida, Yuya, Zumberge, Mark, Takahashi, Keisuke

“…In this study, geodetic and seismic phenomena occurring in the subduction zone were observed with two tiltmeters that were installed in seafloor boreholes…”
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On the Accuracy of Quartz Pressure Sensor in the Seafloor Affected by Transport Condition by Machida, Yuya, Araki, Eiichiro, Nishida, Shuhei, Kimura, Toshinori, Matsumoto, Hiroyuki

“…Improving the accuracy of pressure measurements on the seafloor can reveal small vertical crustal deformations, contributing to the knowledge of…”
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Experimental evidence characterizing pressure fluctuations at the seafloor-water interface induced by an earthquake by Matsumoto, Hiroyuki, Kimura, Toshinori, Nishida, Shuhei, Machida, Yuya, Araki, Eiichiro

“…An unusual combination of a laboratory experiment and in situ measurement of pressure fluctuations during an earthquake allows us to resolve some uncertainties…”
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Weak faults at megathrust plate boundary respond to tidal stress by Tonegawa, Takashi, Kimura, Toshinori, Shiraishi, Kazuya, Yabe, Suguru, Fukao, Yoshio, Araki, Eiichiro, Kinoshita, Masataka, Sanada, Yoshinori, Miura, Seiichi, Nakamura, Yasuyuki, Kodaira, Shuichi

“…Lateral spatial variations of weak portions at the plate boundary in subduction zones have been estimated primarily by the distribution of slow earthquakes…”
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Correction to: Weak faults at megathrust plate boundary respond to tidal stress by Tonegawa, Takashi, Kimura, Toshinori, Shiraishi, Kazuya, Yabe, Suguru, Fukao, Yoshio, Araki, Eiichiro, Kinoshita, Masataka, Sanada, Yoshinori, Miura, Seiichi, Nakamura, Yasuyuki, Kodaira, Shuichi

“…An amendment to this paper has been published and can be accessed via the original article…”
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Synchronous changes in the seismicity rate and ocean-bottom hydrostatic pressures along the Nankai trough: A possible slow slip event detected by the Dense Oceanfloor Network system for Earthquakes and Tsunamis (DONET) by Suzuki, Kensuke, Nakano, Masaru, Takahashi, Narumi, Hori, Takane, Kamiya, Shinichiro, Araki, Eiichiro, Nakata, Ryoko, Kaneda, Yoshiyuki

“…We detected long-term hydrostatic pressure changes at ocean-bottom stations of the Dense Oceanfloor Network system for Earthquakes and Tsunamis (DONET) along…”
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Small size very low frequency earthquakes in the Nankai accretionary prism, following the 2011 Tohoku-Oki earthquake by To, Akiko, Obana, Koichiro, Sugioka, Hiroko, Araki, Eiichiro, Takahashi, Narumi, Fukao, Yoshio

“…•Many very low frequency earthquakes (VLFEs) occurred in the Nankai trough, following the 2011 Mw 9.0 Tohoku-oki earthquake.•The close-in observations, using…”
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Near-Field Body-Wave Extraction From Ambient Seafloor Noise in the Nankai Subduction Zone by Tonegawa, Takashi, Kimura, Toshinori, Araki, Eiichiro

“…Ambient noise correlation is capable of retrieving waves propagating between two receivers. Although waves retrieved using this technique are primarily surface…”
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Stress Sensitivity of Instantaneous Dynamic Triggering of Shallow Slow Slip Events by Katakami, Satoshi, Kaneko, Yoshihiro, Ito, Yoshihiro, Araki, Eiichiro

“…Dynamic triggering of large, detectable slow slip events (SSEs) is rarely observed, even though regional earthquakes often trigger tectonic tremors and very…”
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