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| Building under water due to storm |
Superstorm Sandy shook the ground as far away as the West Coast, produce tiny vibrations in Earth's crust. They were picked up by seismometers.
Scientists use this activity to track the path of the storm. Analyzing the past records of vibrations helps them to know which climatic changes has influenced the storminess.
Storm - induced seismic vibes are not a newly recognized phenomenon. Ground motions triggered by Hurricane Katrina were picked up by seisometers in California.
The strongest ground motions are created at or near a storm, researchers can track its progress using seismic data.
The ground motions generates the strong storms over the sea typically a cycle at low frequency, outside the range of vibrations produced by the earthquakes.
By poring seismic data together in recent decades, researchers gain insight in to whether and how th eclimate changing has influenced the long term trends in the storm - induced waviness of the earth's oceans.
Earthquake sensors located far away from the Pacific Northwest detected the storm's energy as it goes towards the New York metropolitan region last year. The network records the sudden release of energy in the earth's crust.
No magnitude scale is generated for the micro seisms by Sandy. by Sandy, Many people may not realize it, earthquakes are not the only events that generate seismic waves.