H. Ogasawara | Researchain

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Featured researches published by H. Ogasawara.

SAIMM AfriRock 2017 ISRM International Symposium | 2017

Drilling Into Seismogenic Zones of M2.0 – M5.5 Earthquakes From Deep South African Gold Mines (DSeis): Establishment of Research Sites

H. Ogasawara; Raymond J. Durrheim; Yoshiaki Yabe; Takatoshi Ito; G. van Aswegen; M. Grobbelaar; Akio Funato; Akimasa Ishida; Siyanda Mngadi; Musa Manzi; Martin Ziegler; Amelia K. Ward; G. Hofmann; Pamela Moyer; Margaret S. Boettcher; Phil Dight; William L. Ellsworth; B. Liebenberg; N. Wechsler; T. C. Onstott; N. Berset; DSeis Team

Japan Geoscience Union | 2017

Searching significant displacement zone of Orkney earthquake fault by forward and inversion analysis with strain data observed at very close distance

Tatunari Yasutomi; Hiroshi Ogasawara; Akimasa Ishida; H. Ogasawara; Raymond J. Durrheim; Alex Milev; Makoto Okubo; Teruhiro Yamaguchi; Jim Mori

Japan Geoscience Union | 2017

ICDP Drilling project to probe seismogenic zones of M2.0-5.5 earthquake in deep South African gold mines - Commencement of drilling.

Hiroshi Ogasawara; Yasuo Yabe; Takatoshi Ito; Gerrie van Aswegen; Michelle Grobbelaar; Raymond J. Durrheim; Martin Ziegler; Margaret S. Boettcher; T. C. Onstott; Christo Craill; Akimasa Ishida; H. Ogasawara; Musa Manzi; Harumi Kato; Akio Funato; Siyanda Mngadi; Tatsunari Yasutomi; Shigeki Horiuchi; Alex Milev; Pamela Moyer; William L. Ellsworth; Shuhei Abe; Makoto Okubo; Kazutoshi Imanishi; Tony Ward; Denver Birch; Neta Wechsler; Bennie Liebenberg; Nicolas Berset; John Paul Hunt

Japan Geoscience Union | 2016

Searching largest displacement zone of the 2014 Orkney earthquake fault with strain data and using Map3Di for scientific drilling.

Akimasa Ishida; Hiroshi Ogasawara; H. Ogasawara; Taka Uchiura; Raymond J. Durrheim; Alex Milev; Makoto Okubo; Teruhiro Yamaguchi

Archive | 2006

An Attempt to Monitor Stress/ Physical-property at Hypocenters, Using Tidal Response, Mponeng Gold Mine, South Africa

Ken Morishita; H. Ogasawara; Hironori Kawakata; Seigo Nakao; M. Nakatani; Akihito Kato; Yoshihisa Iio; Hiroaki T. Ishii; Tsuneo Yamauchi; Amelia K. Ward; A. J. Mendecki; G. D. van Aswegen; Patrick Lenegan; R. Carstens

Archive | 2006

Stress Drop and Radiated Seismic Energy of Microearthquakes Involving Volume Change in a South African Gold Mine

Takashi Yamada; Rachel E. Abercrombie; Satoshi Ide; Jim Mori; Hironori Kawakata; M. Nakatani; Yoshihisa Iio; H. Ogasawara

Archive | 2005

Apparent Stress and Rupture Speed of Small Earthquakes in a South African Gold Mine : Constraints on Fracture Energy

Takashi Yamada; Jim Mori; Satoshi Ide; Hironori Kawakata; Yoshihisa Iio; H. Ogasawara

Archive | 2003

Determination of Fault Planes and Rupture Velocities of Small Earthquakes in a South African Gold Mine: Constraints on Radiation Efficiency

Takashi Yamada; Jim Mori; H. Ogasawara; Yoshihisa Iio; Hironori Kawakata; Satoshi Ide

Archive | 2003

An attempt to directly monitor stress buildup and triggered earthquakes within one fault distance in South African deep gold mines

H. Ogasawara; Yoshihisa Iio; M. Nakatani; Johane Takeuchi; Naoyuki Shimoda; Hiroaki T. Ishii; Tsuneo Yamauchi; Takao Satoh; Hironori Kawakata; Akihito Kato; Amelia K. Ward; Scott K. Murphy; Ralph N McGill; A. J. Mendecki; G. D. van Aswegen; R. Seesag

Archive | 2003

Coseismic strain changes of 10-4 and 7x10-5 recorded with Ishii strainmeter by continuous 24bit 25Hz monitoring on seismogenic fault of M~3 in deep gold mine, South Africa

Johane Takeuchi; H. Ogasawara; Hiroaki T. Ishii; Seigo Nakao; Mitsuyo Ando; G. D. van Aswegen; A. Mendcki; Artur Cichowicz; P. Mountfort; Satoshi Ide; Hironori Kawakata

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