Earthquake sensitivity

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Earthquake sensitivity and earthquake sensitive are pseudoscientific terms defined by Jim Berkland to refer to certain people who claim sensitivity to the precursors of impending earthquakes, manifested in "dreams or visions, psychic impressions, or physiological symptoms", the latter including "ear tones" (ringing in the ears), headaches, and agitation. It is claimed that "[a] person with a very sensitive body may also have some subtle reaction to whatever animals react to". Proponents have speculated that these may result from: 1) piezoelectric effects due to changes in the stress of the Earth's crust, 2) low-frequency electromagnetic signals, or 3) from the emission of radon gas. Although proponents suggest the possibility that the claimed effects might work through known physical phenomena, and thus be amenable to scientific study, these claims are pseudoscientific in that no evidence of such effects, nor any theory of how such effects might be perceived, has been presented in the scientific literature. What the scientific literature does have is various reports showing that animals do not show disturbed or altered behavior attributable to earthquake precursors (other than foreshocks). Aside from whether such phenomena can be detected (by any means), the "consistent failure to find reliable earthquake precursors" has led many scientists to question whether such precursor phenomena even exist. Could "earthquake sensitives" be responding to some kind of "psychic impressions" or other paranormal phenomena as yet unknown to science? After reviewing the scientific literature the International Commission on Earthquake Forecasting for Civil Protection (ICEF) concluded that there is no credible scientific evidence that animals display behaviors indicative of earthquake-related environmental disturbances that are unobservable by the physical and chemical sensor systems available to earthquake scientists. On their side, the proponents claim that there have been "many scientific papers" supporting their views, but "most have been totally rejected by the...