Please Register or Log in to view the hidden image! yes thats how i am right now. i live in the caribbean and is the first time i am hearing of the pacific ring of fire, but, it beats my interest when i found out it was a ring of Volcanoes being erupted at sea. Please Register or Log in to view the hidden image! i am to be making a presentation on this topic this coming friday. if there is anyone in this circle who is will to help me know and understand this it would be greatly appreciated. i want tot know dates of the major eruption of the decade. and the last time this erupted. Please Register or Log in to view the hidden image!
all I know is its where the pacific sea bed plate is being eaten away at round its edges by diferent continents. The seabed melts once it slides under and makes lava that comes up the other side of the join. I suppose itll carry on til California and Japan sqeez Hawaai in a snadwich + kangaroos can jump across to Chily..
I can give ya names of some volcanoes in the Ring of Fire, but only the ones near me, in the contiguous USA: Mt. St. Helens (Washington) Mt. Ranier (Washington) Mt. Hood (Oregon) Three Sisters (Oregon) Mt. Newberry (Oregon) Mt. Mazama / Crater Lake (Oregon) Mt. McLoughlin (Oregon) Mt. Shasta (California) The last major eruption I know much about involving the Ring of Fire was on May 18th, 1980. Mt. St. Helens, near Seattle, USA, blew a huge chunk of itself out. A few months ago, that volcano was rumbling a bit, and everyone thought we'd have another major eruption. We only got a sputter. Ya can also Google it. Good stuff ya can find on Google.
the tsunami two months ago was caused by an earthquake involving a very small tectonic plate right next to the ring of fire. FAIAP, the ring of fire is an area of high volcanic activity around the Pacific Tectonic plate. It covers California to Japan. http://en.wikipedia.org/wiki/Pacific_Ring_of_Fire
wouldnt the 1 in the Philipines in 1991 also be part of the ring of fire? I heard that cooled the whole world by a degree or so for months.. satelites could see the dust allround the globe.
Becky The Pacific Ring of Fire is a line drawn around the Pacific Ocean that experiences a great deal of volcanism. The reason for it is that tectonic plates, sections of the Earth's crust, are sliding around. When they run into each other, one plate dives under the other one. The movement speed is only a few centimeters per year. The plate going under is usually the oceanic plate diving under the continental plate. The angle of the diving plate is maybe about 45 degrees. The diving plate brings water with it in the sediments on the sea floor. This water lowers the melting point of the material by maybe 100 degrees Celsius. The melted rock, now called magma, is under tremendous pressure, like the toothpaste in a tube that you stepped on. It squeezes out, meaning up, through any cracks it can find. Because the plate is diving at a 45 degree angle, wherever it gets deep enough to melt is also the distance inland from where the plate started diving under, subducting. If it's a hundred kilometers deep, then the magma rises to the surface 100 kilometers from the plate boundary, the subduction zone. When the rising magma reaches the surface, we call it lava; we have a volcano. The Pacific Plate is spreading, driving the edges under other plates. All along these boundaries we have the volcanos in subduction zones collectively known as The Pacific Ring of Fire. Does that help with your project?
Pacific plate is spreading? but hasnt the pacific shrunk while the Atlantic grew - I mean, all the continents round the Pacific are moving into it + eating it up, right? Theres no big ridge down the middle of the Pacific, notlike the other oceans. wheres it spreading from?
thanks to everyone for the help, i never thought of getting a response like that. Well my presentation os this friday the 5th of march. i have found alot of stuff on this and some dates. Jenny, thanks for your input; Maddad your infor. is greatly apreciated. thanks again to everyone even if i dont make mention of your names, i will make mention of them in my presentation.i will ofcourse keep you all posted.
thanks for this i spent all week trying to get some names where last eruption took place. this will be apart of my prsentation. bless up
I think so — but note that I said the Mt. St. Helens eruption was the last major eruption I know much about. In other words, I didn't know much about the Philipines eruption, and it didn't come to mind. I know vaguely what eruption ye'r talking about, but that's all I can say about it. Please Register or Log in to view the hidden image! I wanna say the volcano was called Payacutan (spelling?) for some reason, but I think that's in Mexico.
The world's mid-oceanic ridge system is huge, some 70,000 kilometers long. It encircles the world like a seam encircles a baseball. The ocean floor spreads out everywhere from this mid-oceanic ridge. However, if that were the only process, then the Earth would keep getting bigger as it gained surface area. The reason it doesn't is that sections of the crust, plates, bump into one another. One usually dives under the other, which holds the world's total surface area constant.
Becky, I thought I had posted this five days ago. Must be senility. The volcanoes in the ring of fire are in almost constant eruption somewhere. Thus during the last week there has been eruptive activity at ten volcanoes in the ring-of-fire: ANATAHAN Mariana Islands, central Pacific Ocean COLIMA western México EGON Lesser Sunda Islands, Indonesia LIUCHEVSKOI Kamchatka Peninsula, Russia MANAM offshore New Guinea, Papua New Guinea RABAUL New Britain Island, Papua New Guinea SHIVELUCH Kamchatka Peninsula, Russia ST. HELENS Washington, USA TUNGURAHUA Ecuador VENIAMINOF Alaska Peninsula, USA For details on each of these eruptions go to this site: http://www.volcano.si.edu/reports/usgs/
How about an alternative view on the mechanism of the ring of fire, well concerning the tectonics here: http://arxiv.org/ftp/physics/papers/0502/0502135.pdf Although many assumptions of the author are in error, he still has some interesting points. Worthwile to read.
My Earth Science textbook came with a CD which I coppied into my computer. After remembering this thread, I jumped into it this afternoon and took the geology tour again. It's still as fascinating now as it was then.
