Tsunami in Hawaii

Reefs have very little effect in stopping a tsunami. By the time most tsuami's arrive onshore they are whitewater anyway. It's more of a wall of churned up water that comes ashore rather than a breaking wave. It's almost like tilting the ocean and pouring it onto land. You can't stop it.

 

did you see what happened to Indo and Thailand???

 

every time a show about tsunamis comes on tv, they start with this,
http://www.examiner.com/article/hawaii-s-tsunami-history-a-destructive-and-deadly-past

 

Hawaii seems like a country(I don't consider Hawaii a state,nor does the asp) that would be succeptable to tsunamis being where its located.houses do occasionally get washed away during 100yr storms.they did an article on surfline with the difference between an eastcoast storm and a Hawaiian storm.well get a 30ft swell from a storm like sandy and it washes away the eastcoast.Hawaii gets the same storm and its just feathering on the outer reefs.i know guys like sunny Garcia pray for the 100 yr storm to wash away all the haole houses..

crazy thing,I been watchin buying Hawaii on the travel channel.in the 70s,u could own a beachfront home for maybe 30 grand.today the value is over a million.thats why theres very few locals at pipe.big American corps come and buy u out of ur property,but shyt if I was them and they offered me a lot for my home id sell it to.Hawaii also has the highest electrical bills,produce is very expensive since it has to be imported.all wood has to be imported,everything is twice as much there as it is here.after watching it ,I don't really want to move to Hawaii lol.not to mention black widow spiders,flying cockroaches,poisonous centipedes,and a bunch of other things.but theres good news,chickens eat the centipedes

 

Long period wind waves go up to around 25 seconds, but during peak wave heights are rarely above 18 seconds. Tsunami waves have wave periods up to 60 seconds. So, the tsunami waves are travelling super fast and interact with the bottom much much deeper. A 1ft wave with a wave period of 60 seconds will do some damage.

 

Hawaii is absolutely 1 of the 50 US states....

30,000$ was alot different in 1975 than it is now. Either way to mortgage a house in 1975 interest rates where at like 25% meaning if you mortgaged a 30,000 house youd end up paying 100,000$ (or somthing like that i didnt take the time to do the math)
and as for living on hawaii the whole idea is to be able to live there off the land that is provided. Bamboo homes Hawaiian grown farms alternate forms of electricity if you have to be so "connected" and if you cant handle bugs stay out of the tropics. And what big american corps are you talking about? quik? volcom? because i believe the only RESORT on the north shore is turtle bay. Beachfront property is expensive nomatter where you go. the reason it was cheaper years ago was because the people who owned the land didnt realize what it was worth then. Now there is competition to own property which drives the price up.

 

why is the land worth more?did u ever see a pic of the north shore during the 70s and what it looks like now?check it out,used to be all sand with a few shacks,now its house on top of house on top of house.thats why real Hawaiians pray for the 100 yr storm,so they can reclaim the land that's theirs.

Hawaiians are more Japanese/Asian than American.have u ever seen a legit Hawaiian?not Jamie o brien or john john.a real Hawaiian.we stole the land from Hawaiians.hawaiians do not support capt cook.

this is what a real Hawaiian looks like.and please don't slander this man,he is a Hawaiian legend

 

this was haliewa in the 70s.look at it now

 

Guess what your parents house was worth in the 70's... Probably 1/5 of today's value...
Same thing with the mainland as far as local blood.. Are you native American? Or an Italian settler?

 

My parents house in 1970 cost $15,000. They sold it for $200,000 in 1995.

 

Not in Hawaii but on the topic of tsunamis. Biggest wave ever ridden!!!! Just on a boat...[video=youtube_share;yN6EgMMrhdI]http://youtu.be/yN6EgMMrhdI[/video]

 

brahs- only Belmar, NJ could handle that type of wave....

 

60 second period, that's absolutely amazing to think about, pretty creepy imo. After the '04 tsunami, there was footage of an actual breaking wave, can't remember where(somewhere in Thailand), but it was in the normal surf zone, idk, maybe 20-25 ft by the face, but just heaving beyond belief.

The best footage I saw was in a documentary that was all eyewitness recordings...interviewed a dude who was scuba diving offshore when it passed. One of the other images cemented in my mind is of some guy who is just hopelessly walking up the beach as a malestrom of whitewater is approaching behind him, and it was like he knew it was hopeless to try and outrun it, so he just calmly accepted his fate. Heavy stuff.

 

You gotta explain this to me. I don't think this is correct. Wave period is the time it takes for one wave cycle to pass. It describes how tightly packed the waves are. Longer period = more time between crests. The speed of the wave is independent of period (and frequency). A tsunami wave could have a 60-second period, but just be moving very slowly.

You lengthen the wave period in two ways: reduce speed or increase wavelength.

All that said, a wave with 1ft of amplitude and a 60-second period could be also be moving VERY fast, it would just need to also have a very long wavelength. I think when surfers talk about waves with a lot of "power" they're referring to the speed of the wave, which is not the same as the period of it.

I got a B+ in physics so consider this to be 100% factual.

 

faster waves have longer wavelength, wavelength(λ) is period (functionally in this case, I understand that period is in sec and λ is in M)

so a longer period=faster wave= more power
v= λf


http://www.surfline.com/surfology/surfology_forecast2.cfm

 

The long period waves contain a lot more energy due to the amount of water being "energized" (I'm sure there's a better scientific term for that) between the peaks. As the front of the wave starts to interact with the bottom there's a whole lot more wave energy following behind it. A 6 second swell doesn't have as much water between the peaks so less energy.

You will experience this when duck diving a long period swell vs. a short period swell. There's much less of push towards the beach when coming up from a duck dive under a windswell vs a ground swell.

It's a bad explanation I know but you got a B+ so you should be able to decipher it.

 

It's like a train vs. a truck hitting a wall. Truck hits and "smash," all energy is released quickly. A train hits and all the cars after it keep coming and coming, smashing the front car flatter and flatter against the wall.