Puerto Rico earthquakes: what's causing them, how can residents be safe? An expert's insights

Troy Morgan is an adjunct professor in the Department of Civil and Urban Engineering and NYU Tandon. 

… Its tremors have shaken the island at magnitudes ranging from 4.5 to 6.4 for three days in the last week. The effect that can have, in real terms, was explained by Troy Morgan, the principal engineer of Exponent, an engineering and scientific consulting firm.

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