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First-Arrival Picking Method for Active Source Data with Ocean Bottom Seismometers Based on Spatial Waveform Variation Characteristics
The precision and reliability of first-arrival picking are crucial for determining the accuracy of geological structure inversion using active source...
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High-frequency S and S-coda waves at ocean-bottom seismometers
To clarify the characteristics of high-frequency (> 1 Hz) S and S -coda waves at ocean-bottom seismometers (OBSs), we analyzed seismograms observed at...
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Precise aftershock distribution of the 2019 Yamagata-oki earthquake using newly developed simple anchored-buoy ocean bottom seismometers and land seismic stations
An earthquake with a magnitude of 6.7 occurred in the Japan Sea off Yamagata on June 18, 2019. The mainshock had a source mechanism of reverse-fault...
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Development and evaluations of the broadband ocean bottom seismometer (Yardbird-BB OBS) in Taiwan
This study focuses on develo** and evaluating the broadband ocean bottom seismometer (Yardbird-BB OBS) in Taiwan. The Yardbird-BB OBS is a crucial...
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Joint inversion of ocean-bottom pressure and GNSS data from the 2003 Tokachi-oki earthquake
When the 2003 Tokachi-oki earthquake generated a large tsunami off eastern Hokkaido, Japan, it was detected by cabled ocean-bottom pressure gauges...
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The Seismotectonics and Seismicity of the Laptev Sea Region: The Current Situation and a First Experience in a Year-Long Installation of Ocean Bottom Seismometers on the Shelf
AbstractThis paper is a review of current concepts concerning the seismotectonics and seismicity in the Laptev Sea region. The chief feature of the...
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New Data on Seismotectonics of the Laptev Sea from Observations by Ocean Bottom Seismographs
AbstractThe results of new local seismic observations in the Laptev Sea obtained using ocean bottom seismographs were compared with actual data from...
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Drift of an ocean bottom electromagnetometer from the Bonin to Ryukyu Islands: estimation of the path and travel time by numerical tracking experiments
Ocean bottom electromagnetometers (OBEMs) installed on the seafloor around Nishinoshima Island (Bonin Islands) were missing after a December volcanic...
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A Robust Workflow for Acquiring and Preprocessing Ambient Vibration Data from Small Aperture Ocean Bottom Seismometer Arrays to Extract Scholte and Love Waves Phase-Velocity Dispersion Curves
The phase-velocity dispersion curve (DC) is an important characteristic of the propagation of surface waves in sedimentary environments. Although the...
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P-wave velocity structures of the crust across the Southern Taiwan Strait imaged by using air-gun data recorded from ocean-bottom seismometers
Ocean-bottom seismometers (OBSs) were deployed at a shallow water depth (< 50 m) and recorded data from air-gun shootings with a large volume of...
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Monitoring volcanic activity with distributed acoustic sensing using the Tongan seafloor telecommunications cable
The devastation caused by the January 2022 eruption of Hunga Tonga-Hunga Ha’apai volcano (HTHH) in the Tongan archipelago reminded us of the...
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Shallow tectonic tremor activities in Hyuga-nada, Nankai subduction zone, based on long-term broadband ocean bottom seismic observations
The study of slow earthquake activity, which occurs in the shallow and deep sides of seismogenic zone, is crucial for understanding subduction zones,...
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Experimental Study on the Identification of Scholte Waves Based on Acoustic Pressure Field Measurement
Scholte waves at the seafloor interface are generally identified by their velocity features and seismic fields, which are measured using ocean bottom...
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Tectonic tremors immediately after the 2011 Tohoku-Oki earthquake detected by near-trench seafloor seismic observations
Temporal seismic observations from pop-up type ocean-bottom seismometers were used to detect tectonic tremors immediately following the 2011...
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The Mediterranean Sea: A Laboratory to Characterize Micro-Continental Drift and Oceanic Basin Formation Processes
The sequence of processes that lead to the genesis of passive margins and their associated oceanic basins remains debated. Following the continental...
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Preliminary Results of the Seismicity Monitoring Experiment around the 2019 Mw5.4 Earthquake Epicenter in the Central South China Sea Basin
On September 5, 2019, a moderate earthquake of Mw5.4 unexpectedly occurred in the apparently quiescent central basin of the South China Sea. We...
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Improvement of near-field tsunami forecasting method using ocean-bottom pressure sensor network (S-net)
Since the installation of a dense cabled observation network around the Japan Trench (S-net) by the Japanese government that includes 150 sensors,...
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Preliminary Results from a Prototype Ocean-Bottom Pressure Sensor Deployed in the Mentawai Channel, Central Sumatra, Indonesia
We analyze data retrieved from an ocean floor pressure sensor continuously operated for 48 days in the Mentawai Strait during the Spring of 2016, as...
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Campus Vibration in Nanwangshan Campus, China University of Geosciences at Wuhan Monitored by Short-Period Seismometers
Continuous seismic observations can record seismic waveforms, and ambient noise, for the purposes of earthquake researches and other applications....