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Unusual Childhood Waking as a Possible Precursor of the 1995 Kobe Earthquake.

Ikeya M, Whitehead NE - Animals (Basel) (2013)

Bottom Line: A statistically significant abnormal rate of early wakening before the earthquake was found, having exponential decrease with distance and a half value approaching 100 km, but decreasing much slower than from a point source such as an epicentre; instead originating from an extended area of more than 100 km in diameter.Because an improbably high amount of variance is explained, this effect is unlikely to be simply psychological and must reflect another mechanism-perhaps Ultra-Low Frequency (ULF) electromagnetic waves creating anxiety-but probably not (222)Rn excess.Other work reviewed suggests these conclusions may be valid for animals in general, not just children, but would be very difficult to apply for practical earthquake prediction.

View Article: PubMed Central - PubMed

Affiliation: Quantum Geophysics Laboratory, Department of Earth and Space Sciences, University of Osaka, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan.

ABSTRACT
Nearly 1,100 young students living in Japan at a range of distances up to 500 km from the 1995 Kobe M7 earthquake were interviewed. A statistically significant abnormal rate of early wakening before the earthquake was found, having exponential decrease with distance and a half value approaching 100 km, but decreasing much slower than from a point source such as an epicentre; instead originating from an extended area of more than 100 km in diameter. Because an improbably high amount of variance is explained, this effect is unlikely to be simply psychological and must reflect another mechanism-perhaps Ultra-Low Frequency (ULF) electromagnetic waves creating anxiety-but probably not (222)Rn excess. Other work reviewed suggests these conclusions may be valid for animals in general, not just children, but would be very difficult to apply for practical earthquake prediction.

No MeSH data available.


Related in: MedlinePlus

Log fit to data of children who woke more than a minute before the quake.
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animals-03-00228-f002: Log fit to data of children who woke more than a minute before the quake.

Mentions: In Figure 1, Figure 2 are plotted log fits to the two time classes of data. An exponential decrease with distance is shown. Attempts to fit a linear function gave worse fits.


Unusual Childhood Waking as a Possible Precursor of the 1995 Kobe Earthquake.

Ikeya M, Whitehead NE - Animals (Basel) (2013)

Log fit to data of children who woke more than a minute before the quake.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4495510&req=5

animals-03-00228-f002: Log fit to data of children who woke more than a minute before the quake.
Mentions: In Figure 1, Figure 2 are plotted log fits to the two time classes of data. An exponential decrease with distance is shown. Attempts to fit a linear function gave worse fits.

Bottom Line: A statistically significant abnormal rate of early wakening before the earthquake was found, having exponential decrease with distance and a half value approaching 100 km, but decreasing much slower than from a point source such as an epicentre; instead originating from an extended area of more than 100 km in diameter.Because an improbably high amount of variance is explained, this effect is unlikely to be simply psychological and must reflect another mechanism-perhaps Ultra-Low Frequency (ULF) electromagnetic waves creating anxiety-but probably not (222)Rn excess.Other work reviewed suggests these conclusions may be valid for animals in general, not just children, but would be very difficult to apply for practical earthquake prediction.

View Article: PubMed Central - PubMed

Affiliation: Quantum Geophysics Laboratory, Department of Earth and Space Sciences, University of Osaka, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan.

ABSTRACT
Nearly 1,100 young students living in Japan at a range of distances up to 500 km from the 1995 Kobe M7 earthquake were interviewed. A statistically significant abnormal rate of early wakening before the earthquake was found, having exponential decrease with distance and a half value approaching 100 km, but decreasing much slower than from a point source such as an epicentre; instead originating from an extended area of more than 100 km in diameter. Because an improbably high amount of variance is explained, this effect is unlikely to be simply psychological and must reflect another mechanism-perhaps Ultra-Low Frequency (ULF) electromagnetic waves creating anxiety-but probably not (222)Rn excess. Other work reviewed suggests these conclusions may be valid for animals in general, not just children, but would be very difficult to apply for practical earthquake prediction.

No MeSH data available.


Related in: MedlinePlus