John Ebel, director of Boston College's Weston Observatory, noted that seismically, the current period seemed to resemble the cluster of large earthquakes in the middle of the last century.

波士顿学院韦斯顿实验室主任约翰·埃贝尔注意到，从地震学角度说，现在似乎重现了上世纪中期的一系列地震。

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In an unusual turn, Colorado Governor John Hickenlooper told a local newspaper he was close friends with Ebel's father, Jack Ebel.

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