MODELING CONFINED PRESSURE CHANGES INDUCING ANOMALOUS ELECTROMAGNETIC FIELDS RELATED WITH EARTHQUAKES

dc.contributor.author	Fujinawa Y.
dc.contributor.author	Matsumoto T.
dc.contributor.author	Takahashi K.
dc.date.accessioned	2021-04-23T07:24:55Z
dc.date.available	2021-04-23T07:24:55Z
dc.date.issued	2002
dc.identifier	https://www.elibrary.ru/item.asp?id=32144494
dc.identifier.citation	Journal of Applied Geophysics, 2002, 49, 1-2, 101-110
dc.identifier.issn	0926-9851
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/28311
dc.description.abstract	Electromagnetic field anomalies provide a means to estimate the confined water pressure changes through electrokinetic effects in the preparatory stages of an earthquake occurrence process. Typical shorter period pulse-like signals in the ULF band associated with seismic swarms (e.g., Fujinawa et al. [Phys. Chem. Earth (2000)]) are used to estimate the evolution of confined pressure changes based on a transient electrokinetic model. A model calculation using a simple conductivity structure indicates that the water pressure increases abruptly by several megapascals. It is indicated that sharper signals are observed at points less than a few kilometers from the source.
dc.title	MODELING CONFINED PRESSURE CHANGES INDUCING ANOMALOUS ELECTROMAGNETIC FIELDS RELATED WITH EARTHQUAKES
dc.type	Статья

Files in this item

Name: Fuji_02.pdf

Size: 178.0Kb

Format: PDF