Works matching AU Hisashi Nakahara

Results: 18

A Passive Estimation Method of Scattering and Intrinsic Absorption Parameters From Envelopes of Seismic Ambient Noise Cross‐Correlation Functions.

Published in:

Geophysical Research Letters, 2019, v. 46, n. 7, p. 3634, doi. 10.1029/2018GL080553

By:

Hirose, Takashi;
Nakahara, Hisashi;
Nishimura, Takeshi

Publication type:

Article

Seismic velocity changes caused by the Earth tide: Ambient noise correlation analyses of small-array data.

Published in:

Geophysical Research Letters, 2014, v. 41, n. 17, p. 6131, doi. 10.1002/2014GL060690

By:

Takano, Tomoya;
Nishimura, Takeshi;
Nakahara, Hisashi;
Ohta, Yusaku;
Tanaka, Sachiko

Publication type:

Article

Scattering strength at active volcanoes in Japan as inferred from the peak ratio analysis of teleseismic P waves.

Published in:

2021

By:

Ganefianto, Gugi;
Nakahara, Hisashi;
Nishimura, Takeshi

Publication type:

Letter

Fine Structure of Tremor Migrations Beneath the Kii Peninsula, Southwest Japan, Extracted With a Space‐Time Hough Transform.

Published in:

Journal of Geophysical Research. Solid Earth, 2023, v. 128, n. 6, p. 1, doi. 10.1029/2022JB026248

By:

Sagae, Kodai;
Nakahara, Hisashi;
Nishimura, Takeshi;
Imanishi, Kazutoshi

Publication type:

Article

Student Insights on Product Improvement and User Perspectives in Japanese Junior High Technology Education.

Published in:

Design & Technology Education, 2024, v. 29, n. 2, p. 95

By:

Hisashi Nakahara;
Keita Sera;
Tetsuya Uenosono;
Atsuhiro Katsumoto;
Jun Moriyama

Publication type:

Article

Seismic velocity changes in response to different direction of tidal strain.

Published in:

Geophysical Research Abstracts, 2018, v. 20, p. 3330

By:

Tomoya Takano;
Takeshi Nishimura;
Hisashi Nakahara

Publication type:

Article

Deriving Sensitivity Kernels of Coda-Wave Travel Times to Velocity Changes Based on the Three-Dimensional Single Isotropic Scattering Model.

Published in:

Pure & Applied Geophysics, 2017, v. 174, n. 1, p. 327, doi. 10.1007/s00024-016-1358-0

By:

Nakahara, Hisashi;
Emoto, Kentaro

Publication type:

Article

Auto Correlation Analysis of Coda Waves from Local Earthquakes for Detecting Temporal Changes in Shallow Subsurface Structures: the 2011 Tohoku-Oki, Japan Earthquake.

Published in:

Pure & Applied Geophysics, 2015, v. 172, n. 2, p. 213, doi. 10.1007/s00024-014-0849-0

By:

Nakahara, Hisashi

Publication type:

Article

Source location of volcanic earthquakes and subsurface characterization using fiber-optic cable and distributed acoustic sensing system.

Published in:

Scientific Reports, 2021, v. 11, n. 1, p. 1, doi. 10.1038/s41598-021-85621-8

By:

Nishimura, Takeshi;
Emoto, Kentaro;
Nakahara, Hisashi;
Miura, Satoshi;
Yamamoto, Mare;
Sugimura, Shunsuke;
Ishikawa, Ayumu;
Kimura, Tsunehisa

Publication type:

Article

Combined use of repeated active shots and ambient noise to detect temporal changes in seismic velocity: application to Sakurajima volcano, Japan.

Published in:

2017

By:

Hirose, Takashi;
Nakahara, Hisashi;
Nishimura, Takeshi

Publication type:

Letter

Preliminary estimation of high-frequency (4-20 Hz) energy released from the 2016 Kumamoto, Japan, earthquake sequence.

Published in:

Earth, Planets & Space, 2016, v. 68, n. 1, p. 1, doi. 10.1186/s40623-016-0557-3

By:

Sawazaki, Kaoru;
Nakahara, Hisashi;
Shiomi, Katsuhiko

Publication type:

Article

Locating Spatial Changes of Seismic Scattering Property by Sparse Modeling of Seismic Ambient Noise Cross‐Correlation Functions: Application to the 2008 Iwate‐Miyagi Nairiku (Mw 6.9), Japan, Earthquake.

Published in:

Journal of Geophysical Research. Solid Earth, 2020, v. 125, n. 6, p. 1, doi. 10.1029/2019JB019307

By:

Hirose, Takashi;
Nakahara, Hisashi;
Nishimura, Takeshi;
Campillo, Michel

Publication type:

Article

Sensitivity of Seismic Velocity Changes to the Tidal Strain at Different Lapse Times: Data Analyses of a Small Seismic Array at Izu‐Oshima Volcano.

Published in:

Journal of Geophysical Research. Solid Earth, 2019, v. 124, n. 3, p. 3011, doi. 10.1029/2018JB016235

By:

Takano, Tomoya;
Nishimura, Takeshi;
Nakahara, Hisashi;
Ueda, Hideki;
Fujita, Eisuke

Publication type:

Article

Seismic velocity changes concentrated at the shallow structure as inferred from correlation analyses of ambient noise during volcano deformation at Izu-Oshima, Japan.

Published in:

Journal of Geophysical Research. Solid Earth, 2017, v. 122, n. 8, p. 6721, doi. 10.1002/2017JB014340

By:

Takano, Tomoya;
Nishimura, Takeshi;
Nakahara, Hisashi

Publication type:

Article

Separating body and Rayleigh waves with cross terms of the cross-correlation tensor of ambient noise.

Published in:

Journal of Geophysical Research. Solid Earth, 2014, v. 119, n. 3, p. 2005, doi. 10.1002/2013JB010824

By:

Takagi, Ryota;
Nakahara, Hisashi;
Kono, Toshio;
Okada, Tomomi

Publication type:

Article

Coseismic velocity change in and around the focal region of the 2008 Iwate-Miyagi Nairiku earthquake.

Published in:

Journal of Geophysical Research. Solid Earth, 2012, v. 117, n. B6, p. n/a, doi. 10.1029/2012JB009252

By:

Takagi, Ryota;
Okada, Tomomi;
Nakahara, Hisashi;
Umino, Norihito;
Hasegawa, Akira

Publication type:

Article

Seismogram envelope inversion for the spatial distribution of high-frequency energy radiation from the earthquake fault: Application to the 1994 far east off Sanriku earthquake, Japan.

Published in:

Journal of Geophysical Research. Solid Earth, 1998, v. 103, n. B1, p. 855, doi. 10.1029/97JB02676

By:

Nakahara, Hisashi;
Nishimura, Takeshi;
Sato, Haruo;
Ohtake, Masakazu

Publication type:

Article

Temporal change in site response caused by earthquake strong motion as revealed from coda spectral ratio measurement.

Published in:

Geophysical Research Letters, 2006, v. 33, n. 21, p. n/a, doi. 10.1029/2006GL027938

By:

Sawazaki, Kaoru;
Sato, Haruo;
Nakahara, Hisashi;
Nishimura, Takeshi

Publication type:

Article