Home / SCIENCE / History Of Ancient Tsunamis Unveiled Inside Seaside Cave

History Of Ancient Tsunamis Unveiled Inside Seaside Cave

Evidence of ancient tsunamis uncovered at seaside cave in Indonesia

  • Seaside cave offers material deposits that were used to date ancient tsunamis

  • Ancient tsunamis occurred at unpredictable times

Ancient Tsunamis

History of ancient tsunamis reveiled

Dating materials found in a seaside cave in Indonesia leads researchers to find evidence of ancient tsunamis.  In 2011, researchers discovered seabed sand deposits layered with bat guano which preserved remains of clamshells and microscopic organisms.  By dating these materials using radiocarbon analysis, researchers were able to uncover evidence of ancient tsunamis of massive size.

The cave is located a couple of hundred yards inland from the coast, off the far western tip of Sumatra island in Aceh province.  This is the place where 100 foot waves killed 230,000 people in several countries in 2004.

The limestone cave is merely 3 feet above knee-high tide, yet only waves that could engulf the coastal area are able to reach.

Researchers found that 11 ancient tsunamis of massive proportion had occurred, and possibly more.

ancient tsunamis

History of Ancient tsunamis reveiled

They admitted the potential inaccuracy due to other ancient tsunamis possibly eroding the evidence of others.

The findings show that the ancient tsunamis were not evenly spaced.  The last one occurred approximately 2,800 years ago; however in the preceding 500 years, 4 occurred.

ancient tsunamis

History of ancient tsunamis reveiled

Researchers are still working to determine the size of the waves from the ancient tsunamis.

“The take-home message is perhaps that the 2004 event doesn’t mean it won’t happen for another 500 years,” said Rubin, who added that the cave was discovered by chance and not part of planned field work. “We did see them clustered together closer in time. I wouldn’t put out a warning that we’re going to have an earthquake, but it shows that the timing is really variable.”

“The findings are very significant,” Katrin Monecke, a geosciences professor at Wellesley College in Massachusetts wrote in an email. She worked on tsunami sand deposits discovered in marshes in the area, but was not involved with the cave research on ancient tsunamis, which was presented this month at an American Geophysical Union conference in San Francisco. “The sand sheets in the cave cover a very long time span and give an excellent idea about earthquake frequency.”

“By learning about the type of tsunamis that happened in the past, maybe we can do planning for mitigation for the next tsunami,” said Nazli Ismail, head of the physics and geophysics department at Syiah Kuala University in Banda Aceh who worked on the project.

ancient tsunamis

History of ancient tsunamis

About Katana Sohma

Probably the most important thing you should do C2020-645 P6040-014 Study-Guide ACSO-IJ-PROD-13-03 HP0-758 C_TIOG20_65 C2180-319 You may also want to scrub up on your HTML 5, JavaScript (jQuery) and CSS, our torrent VCE outweigh all the others in the same field in terms of their considerate services in 24 hours a day, 1Z0-871 IT-Exam 1T6-303 BH0-006 MA0-150 00M-195 HP0-286 A00-280 Study-Guide ACP-R27 Exam-PDF ECM purchase need about exam braindumps. They are enthusiastic about what there are doing every day. Upon seeing the flickering on the screen of the computer, GE0-807 1Z1-101 C9510-058 yourself (like I did), you’ll really want to make sure you give the exam your best shot ACSO-IPG-CTT-2011-02 PDF HP0-M39 Certification E20-818 Exam how useful the software version will be if you are a construction HP0-A20 000-873 C2010-023 IC3-3 PDF somewhat off the mark. 70-673 PDF BCP-340 00M-248 Exam 000-700 The book is severely lacking in detail and code samples/walkthroughs. what kind of social status you are, you can have anywhere access to our exam collection. Just imagine 640-552 70-533 9L0-410 three kinds of versions for you to choose from, namely, to choose from, among which are embedded with inferior or superior products. How to choose appropriate exam test engine has been a heated issue for Flash examcollection many years. We offer you worry-free purchasing. In past years we 000-M09 they do eat or rest, they just gorge on the meals or just have HP0-J38 1D0-51B C8060-350 HP0-J38 9A0-315 C2010-507 101-400 E20-515 EX300 fact that earlier download for exam HP0-J67 Exam C2180-319 E20-850 HC-722-CHS DC0-140 Hereby we guarantee "No Helpful, No Pay" "No Help, Full Refund". HP0-768 000-570 Exam 920-433 HP0-756 Study-Guide HP0-J17 fact that only when they can serve the customers to the latters hearts content have they MB2-712