Bit of a shake

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Mark
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Re: Bit of a shake

Post by Mark »

Thank you for your reassurance Max
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Re: Bit of a shake

Post by trevnhil »

Happy in Cyprus wrote: Sun Mar 19, 2017 2:05 am Secret Valley must be built on very solid foundations, never felt a thing...and we're not far from Timi.

(UPDATE) just read that the centre of the disturbance was not in Timi, but rather:

"An earthquake measuring 4.4 on the Richter scale struck some 45 km northwest of Paphos at approximately 8.15 on Saturday night.

The earthquake that was registered at about 670 km depth was felt in the Paphos and Nicosia districts".
The details on the EMSC site say it was South West of Paphos, and 10 km deep, not 670 km..

Magnitude mb 4.5
Region CYPRUS REGION
Date time 2017-03-18 18:15:26.0 UTC
Location 34.38 N ; 32.20 E
Depth 10 km
Distances 138 km SW of Nicosia, Cyprus / pop: 201,000 / local time: 20:15:26.0 2017-03-18
47 km SW of Paphos, Cyprus / pop: 36,000 / local time: 20:15:26.0 2017-03-18

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cyprusmax47
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Re: Bit of a shake

Post by cyprusmax47 »

HIC

The report in CMail was the laughter of press news (as many times)
The center was exactly south west of Kouklia and first reported from EMSC at 60km depth
after 10 minutes revised to 10 km. There were many comments of this article but this one hit the nail on the head:

"Cyprus Mail, you meant to say southwest of Paphos and you didn't mean to say 670km. Basic fact check wouldn't go amiss"
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Dominic
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Re: Bit of a shake

Post by Dominic »

One thing we did notice at Paphos Harbour, was the remarkably low tide. We must have been there just about when it hit (didn't notice anything else though).
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aphrodite
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Re: Bit of a shake

Post by aphrodite »

I remember it was a big shake, my fridge freezer was rocking from side to side. Was it really in 2015, I thought it was last year? In that case I don't think we had any significant tremors in 2016 that I can remember?
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JimX
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Re: Bit of a shake

Post by JimX »

Dominic not a tide, but two or three times a year the sea either retreats or rises, tides are a daily thing and any local Cypriot Paphos fishermen will tell you tides here in this part of the Mediterranean are almost a none event.

I do not think this minor shake was the cause of any sea movement this is a normal phenomenon in our area of the Med, they say like rain we have tremors daily on Cyprus, this time we felt a short sharp tremor about 9pm here in our village, it was stronger I'm told in the Akamas area.
Last edited by JimX on Mon Mar 20, 2017 7:35 am, edited 1 time in total.
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Re: Bit of a shake

Post by JimX »

Lincoln you are wrong mate prove it!. I tell you what I will meet up near a beach near you and we will wait to see what comes in and goes out, nothing no tide. :D here we go, no we don't just like the sea, you should maybe spend more time at the sea as I do.

http://curious.astro.cornell.edu/about- ... termediate

Tides, like many of the phenomena in nature, are very complicated in their details. If the Earth and Moon were both perfectly spherical and the Earth was covered by an ocean of a constant depth, then everywhere the tides would have the same amplitude. However, the Earth has continents and islands and the oceans vary greatly in their depths. All of these things affect the amplitude of the tides seen in a given spot, as does the local climate and air pressure!

The Mediterranean sea does have tides, but they are of a very low amplitude, as you can see somewhat in the below diagram (from Legos via Aviso/Altimetry) where the Mediterranean is mostly shown in blue meaning its tides have an average amplitude of a few centimetres, (instead of the metre of so shown in the part of the atlantic you can see).

Tides, like many of the phenomena in nature, are very complicated in their details. If the Earth and Moon were both perfectly spherical and the Earth was covered by an ocean of a constant depth, then everywhere the tides would have the same amplitude. However, the Earth has continents and islands and the oceans vary greatly in their depths. All of these things affect the amplitude of the tides seen in a given spot, as does the local climate and air pressure!

The Mediterranean sea does have tides, but they are of a very low amplitude, as you can see somewhat in the below diagram (from Legos via Aviso/Altimetry) where the Mediterranean is mostly shown in blue meaning its tides have an average amplitude of a few centimetres, (instead of the metre of so shown in the part of the Atlantic you can see).

med tides

Figure shows the amplitude of predicted tides in centimetres from Legos via Aviso/Altimetry

The low tides in the Mediterranean are mostly associated with the fact that it has a very narrow outlet/inlet into the Atlantic (although that is not the whole story).

This page was last updated on February 10, 2016.


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trevnhil
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Re: Bit of a shake

Post by trevnhil »

This shows a tide of 30 cm (1foot) on Saturday the 25th..

https://www.tide-forecast.com/locations ... st/six_day

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JimX
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Re: Bit of a shake

Post by JimX »

Today..OH HUM!

Tide in Image

Tide out..

Image

Not sure how much proof of lack of tide members need, but I can assure all there is only centimeters involved..

My family member IS a deep sea fisherman from Paphos and fishes in Paphos waters,and he has a captains licence, he says no tide of note I believe him not Hudswell and co. see those photos took today at two hour intervals.
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Re: Bit of a shake

Post by ApusApus »

I think you are confusing the terms Tidal & Non-Tidal! The Mediterranean is described as Non-Tidal because its tidal range is less than 0.3mt but it does not mean that it has no tides ........... it does!

One of the significances of this is when you take an RYA Day or Coastal Skipper course. If you do this in the Med you will be issued with a Non-Tidal Practical certificate but if you want to sail elsewhere in the world you will need to convert this to a Tidal version!

It's a bit like passing your driving test in an automatic car or a manual shift one. If you pass in a manual one you can drive both types but if you only pass in an automatic then you can only drive an automatic!

At the end of the day though, the Mediterranean does have tides!


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Re: Bit of a shake

Post by Dominic »

Why would two photos taken two hours apart prove or disprove tides? Surely you would need, say, six pictures taken over a 12 hour period.
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PaphosAL
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Re: Bit of a shake

Post by PaphosAL »

Strange, but Jim's tidal photos appear to have been edited in the past few hours, with no edit mention in the post I saw earlier, where both photos were the same size. They're not now...

Tide In and Tide Out are surely now arse about face (or am I hitting the Famous Grouse too hard this afternoon?)

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Re: Bit of a shake

Post by bromerzz »

No tides on the Coventry Canal.
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PaphosAL
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Re: Bit of a shake

Post by PaphosAL »

bromerzz wrote: Mon Mar 20, 2017 6:31 pm No tides on the Coventry Canal.
Are you saying that the Coventry Canal has no locks?

If it has, then surely water levels will rise and decrease between the locks by an inch or two, as that's the way the clever Victorian engineers designed them (and still going strong 200 years later!)

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Re: Bit of a shake

Post by smudger »

"Not sure how much proof of lack of tide members need, but I can assure all there is only centimeters involved.."

Well I guess it depends on what your definition of a tide is. For yonks on CL Jim - and here to start with - you continued to maintain that Cyprus had no tides, in spite of heaps of evidence to the contrary, as is evidenced on this thread.

Strangely, now there is irrefutable evidence that Cyprus does actually and factually have tides, you are changing your stance. You are now acknowledging that Cyprus DOES have tides, but only centimetres. Did anyone ever say different????? Yet you seem to think that because they are minimal, you are still right.

No change there then.

Jim it's very simple - accept it, you were/ are wrong. Cyprus does have tides.

Luckily you can't lock this thread.
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PhotoLady
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Re: Bit of a shake

Post by PhotoLady »

Plenty here on the Knott End estuary bromerzz - we often get 10m tides but I think the average per day is a bit over 8.5m

Here's a high one along the River Wyre:
Image

And here where our little ferry between Knott End and Fleetwood is inching her way to get to the Knott End jetty at low tide:
Image

But I think these photos at Ladies Mile Beach in Limassol offer a perfect example that Cyprus does indeed experience tides, taken one week apart from each other:
August 30 2015
Image

Same spot where the lady wearing the bikini in the photo above is walking past (23 August 2015):
Image
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bromerzz
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Re: Bit of a shake

Post by bromerzz »

Perhaps my reference to the Coventry Canal has gone over your heads. It was cryptic.
I am fully aware of the tides where I live in Cyprus as our local beach reveals its reef twice every 24 hrs.
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Re: Bit of a shake

Post by ApusApus »

Yes I guess it has ............. :|


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