@article{oai:fukuyama-u.repo.nii.ac.jp:00008237,
 author = {河野, 俊彦 and 片桐, 重和},
 journal = {福山大学工学部紀要},
 month = {Dec},
 note = {P(論文), The development for the observation framework of the happening of the earthquake has been matured, and so is the alerting system. However, there has not been a systemic attempt to research the pre-phenomenon to the occurrence of the earthquake. Recently, there has been reported that the abnormality in the electro-magnetic field is observed prior to the happening of the earthquake. We must put more effort to the observation of the precursor phenomenon as the physical phenomenon. Even the researchers of the earthquake can not directly observe the epicenter of the earthquake physically, since most of the time the epicenter is located deep down the surface of the earth. We can take the human body as an analogy, that in order to observe the source of the disease, we do not have such device as the endo-scope to look into the cause of the problem. Earthquake is a phenomenon that the curst of the bedrock stratum is broken and the large-scale magnitude of oscillation is created. At the local level of the destroyed crust, the accumulation of the energy of large scale is progressed, which leads to the destruction of the crust at the end, surpassing its limit. The composition of the earth's crust is the interstratifying of the cluster energy at various levels in order to form the material. Therefore, at the core of the earth, throughout the course of energy accumulation, whenever the energy level is surpassed by the clustering of each type of energy, the cluster condition is broken, and it is assumed that the emission of the electro-magnetic wave as the precursor phenomenon occur as the corresponding energy. Within several years, some data on the abnormality of the electro-magnetic wave are observed as the precursor phenomenon, and such data are introduced. We are making an attempt to demonstrate that such energy of electro-magnetic wave as the precursor phenomenon are progressing in accordance with the degree of energy, from low level to the high level.},
 pages = {259--263},
 title = {広帯域電磁波観測による地震予知},
 volume = {29},
 year = {2005}
}