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Sun Jul 2, 2017, 09:03 PM

NGO is showing the lost world of Port Royal

the great earthquake and tsunami in 1692

12 replies, 4692 views

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Response to malaise (Original post)

Sun Jul 2, 2017, 09:41 PM

1. I have a redware jug that was dove up from the bottom of the harbor.

 

It is a New England Jug with a green glaze. Not bad for a piece of pottery being over 325 years old!

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Response to juxtaposed (Reply #1)

Sun Jul 2, 2017, 09:43 PM

2. Wow - I look at stuff they dug up in the museum

in Port Royal - that's a nice treasure you have there.
We go there often and I still try to imagine 8,000 people living there.

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Response to malaise (Reply #2)

Sun Jul 2, 2017, 10:49 PM

5. If I come across a picture of it or come across it I'll post a picture of it.

 

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Response to malaise (Original post)

Sun Jul 2, 2017, 10:00 PM

3. I've been watching

It's amazing that so much of it sank into the quicksand intact.

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Response to Warpy (Reply #3)

Sun Jul 2, 2017, 10:10 PM

4. Mindblowing

Must have been terrifying for those folks.
Guess it sank before the tsunami was able to destroy the buildings.
The program reminded us that we're well overdue a serious earthquake - not a good thought.

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Response to malaise (Reply #4)

Sun Jul 2, 2017, 10:54 PM

6. If I remember correctly the harbor sank quit a few feet, so the docks and warehouses where

 

below sea level.

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Response to juxtaposed (Reply #6)

Mon Jul 3, 2017, 12:38 AM

8. The quake caused massive liquefaction of the sand

the port was built on, causing buildings to sink down into quicksand. Quicksand also killed many of the inhabitants. The whole city sank within minutes, leaving only the tops of the tallest buildings and the tips of the masts in the harbor visible above the water once the two events, subsidence of 2/3 of the town below sea level with the first shock and liquefaction causing most of the rest to sink as the quake rolled back and forth. Destruction was completed by multiple tsunamis sloshing back and forth through Kingston Harbor.

Something similar happened to Niigata, Japan in 1964. There is extremely poor quality video that shows water boiling up through the loose sand much of the port was built on:

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Response to malaise (Original post)

Sun Jul 2, 2017, 11:48 PM

7. Is that in Jamaica?

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Response to applegrove (Reply #7)

Mon Jul 3, 2017, 05:46 AM

10. Yep

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Response to malaise (Original post)

Mon Jul 3, 2017, 03:14 AM

9. I just watched that! wow, a bad day! earthquake, island sinking and tsunamis leveled the rest



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Response to Baclava (Reply #9)

Mon Jul 3, 2017, 03:35 PM

11. Amazing how well that was drawn

The thing is no one should live over there - it's sand. It will happen again.

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Response to malaise (Reply #11)

Mon Jul 3, 2017, 05:17 PM

12. Scary undersea topography, massive undersea landslides could happen at any time

Last edited Mon Jul 3, 2017, 08:36 PM - Edit history (4)

Huge underwater cliffs on plate boundaries could let go with the next earthquake and do it again





Experts urge Jamaica to prepare for big quake

A U.S. seismic expert urged authorities in Jamaica to start long-term efforts to prepare for another major earthquake on the island, where the seaside capital was mostly destroyed by a big temblor just over a century ago.

It's impossible for scientists to determine if the next big quake will hit in days or decades, but geophysics professor Eric Calais of Purdue University is urging the island's government and various stakeholders to understand that the threat is very real based on the area's history and active seismic activity.

"A 6.5 in the harbor by the capital could be a tremendous threat," said Calais visit to Port Royal, a town just outside of Kingston which was the island's main city in the 17th century until an earthquake and tsunami submerged two-thirds of the settlement in 1692.

Calais' call is especially sobering because in March 2008 he was among a group of scientists who warned officials in Haiti that their country was ripe for a major earthquake after detecting worrisome signs of growing stresses in a fault. Two years later, that fault unleashed a 7.0 quake that devastated the Caribbean nation, with the government putting the death toll at 316,000 people.

https://phys.org/news/2013-03-experts-urge-jamaica-big-quake.html


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