- Jul 1, 2011
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Checked with my son whom knows more of geology than me, whom verified it with some of his profs, and said that the deeper the source of the quake, the more likely animals will sense what is going on. Not just movement, but particles of (I forget the term he used) 'stuff' floating in the air, including minerals. That's why sometimes people get odd headaches afterwards (depending on the weather condition at the time. Its sort of like if you take a really dirty carpet outside and start beating it with a stick, then the wind flies everything in your face. Every time the earth shifts, its like a ripple effect, over land and sea. For those of you whom have a phone or tablet with the ability to get apps on it, try Quakewatch. It helps knowing how common these really are, and the different patterns involved.