We are now seeing the effects of Hurricane Dorian on our Weston Observatory seismographs in New England, as the storm passes by the New England coast.
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These are vibrations from within the water hitting the ocean floor?
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Hurricane makes wind and waves, wind and waves shake the ground along and offshore of the coastal regions, seismograph records the shaking ground motion...
Hi Alan, correct me in this answer if I am wrong, the alteration on the seismograph could due to all vibration produced by the wind shaking trees, towers, and any structure affected, as also things hitting the ground!!