No cause for alarm: San Leon ‘booms' caused by seismic testing

TEXAS CITY, Texas The Texas City Office of Emergency Management said late Wednesday morning that big booms heard in San Leon were caused by seismic testing.

Some area residents who called KHOU 11 News became concerned about the sounds, fearing they were unplanned explosions.

Seismic testing uses energy sources, like dynamite, to measure the motion of the earth.


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