Roosevelt Island has always been a weird bit of NYC. Not connected to the Mainland or Manhattan or Brooklyn, except by ridiculously antequated cable car.
Position would make it an excellent spot for submarines to come in from the ocean and dock, underwater.
Sorry to burst your bubble but the Roosevelt Island Bridge runs from 38th Ave. in Queens to the island.
Roosevelt Island is just south of the aptly named Hell Gate, the connection to Long Island Sound. Certain conditions of tide make the water in Hell Gate appear to be boiling. I've witnessed the waters in the 'gate standing proud of the surrounding waters by at least a foot in a triangular patch at lease 100 meters on a side. The tidal current is around 5 to 7 knots, depending on the tides.
This and the shallow and narrow nature of the upper East river makes your conjecture ridiculous.
According to NOAA chart 12239, the channels around Roosevelt Island are no more than 50 feet deep. The East Channel Project shown on that chart lists its projected depth as 30 feet.
I've sailed in those waters... And stayed away from the Hell Gate.
Manhattan is built on a swamp, iirc. It was not inhabited by the "Native Americans", prior to Whitey showing up. I've heard the alternative story, that it's base is granite, etc. So I am not sure. But if it is indeed somewhat unsound, a Richter >5 would probably slide the buildings right off the island into the Hudson. And then the wave would take out most of New Jersey and/or Long Island.
Roosevelt Island has always been a weird bit of NYC. Not connected to the Mainland or Manhattan or Brooklyn, except by ridiculously antequated cable car.
Position would make it an excellent spot for submarines to come in from the ocean and dock, underwater.
It's weird.
Sorry to burst your bubble but the Roosevelt Island Bridge runs from 38th Ave. in Queens to the island.
Roosevelt Island is just south of the aptly named Hell Gate, the connection to Long Island Sound. Certain conditions of tide make the water in Hell Gate appear to be boiling. I've witnessed the waters in the 'gate standing proud of the surrounding waters by at least a foot in a triangular patch at lease 100 meters on a side. The tidal current is around 5 to 7 knots, depending on the tides.
This and the shallow and narrow nature of the upper East river makes your conjecture ridiculous.
Ah, yes, I remember the bridge now.
East River's main channel is >100 feet.
According to NOAA chart 12239, the channels around Roosevelt Island are no more than 50 feet deep. The East Channel Project shown on that chart lists its projected depth as 30 feet.
I've sailed in those waters... And stayed away from the Hell Gate.
Submarines implies there is a bit of deep water right next to the Island. Is that the case?
East River. Main channel depth >100 feet.
I suppose that is deep enough for some types of submarine.
My point was that if there is a trough next to the Island, then it might mean that there is a fault there.
Experts warn NYC could come down like a house of cards if a 5.0 earthquake struck along the 125th Street fault line - and the Big Apple is OVERDUE one https://www.dailymail.co.uk/news/article-5577117/New-York-overdue-earthquake-destroy-6-000-buildings.html
This is true.
Manhattan is built on a swamp, iirc. It was not inhabited by the "Native Americans", prior to Whitey showing up. I've heard the alternative story, that it's base is granite, etc. So I am not sure. But if it is indeed somewhat unsound, a Richter >5 would probably slide the buildings right off the island into the Hudson. And then the wave would take out most of New Jersey and/or Long Island.