Wednesday, October 22, 2014

Marine Debris Evidence Of Massive Hawaiian Tsunami

Brett Smith for redOrbit.com - Your Universe Online The massive tsunami that struck Japan in 2011 was a wake-up call for Honolulu officials, who began working on updating the island's evacuation plans and procedures immediately after the wall of water struck. Hawaii’s renewed attention on tsunamis also led to the unlocking of a scientific mystery surrounding a massive sediment deposit on the island of Kauai. According to a new study from Hawaiian researchers – the sinkhole, which is nearly 330 feet from shore and guarded by 23-foot-high walls, was filled by marine debris from another massive tsunami, which struck roughly 500 years ago. Published in the journal Geophysical Research Letters, the new study concluded that the older tsunami was probably caused by a 9.0-magnitude earthquake near the Aleutian Islands and measured around 30 feet high.



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