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12:31 PM
Wild! Tracking animals from space could predict earthquakes on the ground
From analyzing pulses in Earth’s magnetic field to detecting pressure waves in the ground, scientists have long sought a reliable means of predicting earthquakes — only to meet with limited success.
Now a team of researchers from 150 universities around the world are finalizing plans for an elaborate global initiative to see if the behavior of wild animals can form the basis of an effective earthquake early-warning system.
For centuries, there’s been anecdotal evidence suggesting that certain animals behave oddly in the hours leading up to an earthquake, apparently because they have some way of sensing when it is about to strike. Snakes are thought to flee their dens and become aggressive before a quake, for example, while flocks of birds appear to migrate off course.
“Initial scientific data on earthquakes suggest that some animals can sense these events hours in advance,” says Martin Wikelski, director of the Max Planck Institute for Ornithology in Radolfzell, Germany, and leader of the International Cooperation for Animal Research Using Space initiative, or Icarus. “If we can demonstrate this beyond a doubt, it has the potential to save the lives of hundreds of thousands of people in the future. The problem with current earthquake sensing technologies is that they give you just a few seconds warning time.”
Over the past four years, Icarus scientists have fitted more than 10,000 animals including birds, bats, cows and flying foxes in quake-prone regions around the world with sensor-studded radio transmitters. The tiny devices will collect information about the animals and beam it to the International Space Station, which will then relay it to a lab at the institute for analysis.