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| Quarry blast blamed for afternoon ‘earthquake’ in Chicago area |
Widely felt. Minor damage. They talk of a "second event" 7 seconds after the blast, but USGS says waveforms show blast.... ??? Brian |
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| Quarry blast blamed for afternoon ‘earthquake’ in Chicago area |
Widely felt. Minor damage. They talk of a "second event" 7 seconds after the blast, but USGS says waveforms show blast.... ??? Brian |
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