The 1998 Miyako fireball's trajectory determined from shock wave records of a dense seismic array

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概要

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• A high velocity passage of a meteoroid through the atmosphere generates a shock wave with a conical front. When the shock front arrives at the surface, it causes high frequency ground motions that are registered on the seismograms. We can use seismological data to determine the trajectory of the meteoroid in the atmosphere. A strong shock wave from the 1998 Miyako fireball is recorded by more than 20 stations in a dense array of seismographs installed in the northeastern region of Honshu Island, Japan. We determine the velocity and the trajectory of the fireball in the upper atmosphere using the arrival times of the shock wave at the stations.

• 公益社団法人 日本地震学会、地球電磁気・地球惑星圏学会 、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会の論文

著者

• Hiramatsu Yoshihiro

  Graduate School Of Natural Science And Technology Kanazawa University

• ISHIHARA Yoshiaki

  Graduate School of Natural Science and Technology, Kanazawa University

• Ishihara Yoshiaki

  Graduate School Of Natural Science And Technology Kanazawa University

• Furumoto Muneyoshi

  Graduate School Of Environmental Sciences Nagoya University

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