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发帖数: 1994 | 1 The Powerful Sumatra-Andaman Islands Earthquake
Credit: USGS
Explanation: December's 9.0 earthquake has likely shortened Earth's day by
about three microseconds and may also have tweaked Earth's rotational
wobble. The megathrust earthquake occurred as the Indian tectonic plate slid
further beneath the Burma tectonic plate. The earthquake was the
fourth most powerful since the year 1900 and triggered tsunamis
that tragically killed over 250,000 people in nearby coastal regions. In the
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