where is the worst volcanic activity in the world?

Answer 1

Volcanoes occur where the crustal plates are subducting or above mantle plumes called hotspots. The majority of volcanic activity occurs around the pacific rim.
If you look at a map of this area it encompasses the western seaboards of the continents of North and South America (the Andes Mountain Range is due to volcanic activity) and across the pacific ocean to the easterly edges of Russia, China, Japan, etc.

The reason for this high level of activity is (simply put) that the oceanic plates are sliding under the americas, and under the mainland of china although bits and bobs are sliding under and over around the islands.
When a plate goes under a continent, a lot of light elements and water are subjected to massive amounts of heat and pressure which escape upwards forming a volcano that produces what is known as a rhyolitic lava.
A mantle plume is molten material moving upwards towards the surface, expanding and melting as it goes. It breaches the crust, forming a basaltic lava. The most famous example of this is the Hawaiin Islands.
Iceland is also a volcanic region, but this time a mantle plume below the mid atlantic ridge (where plates are pulling apart) upsurges. Iceland is part of the mid atlantic ridge, one of three places where it rises above sea level.

Answer 2

Defining the term worst would be useful. Hawaii is sat on a hot spot that produces a constant but steady stream of fresh lava for erupting. This is a somewhat different type of melt than that produced above the great subduction belts of the pacific rim, which produce explosive volcanoes such as Pinatubo. Geologically, the Kimberlite pipes that are the source of many diamonds are reckoned to have been super explosions, bringing the diamonds from the mantle before they have time to oxidise, being very sudden in their appearance. The great Deccan plateau of India was the result of a massive volcanic swarm, covering a huge area of landmass and having no doubt had a worldwide climatic effect.
So the term worst has to be defined, along with your exact geographical location. Anywhere inside an erupting volcanic crater would make that, at that particular moment the worst volcanic activity in the world.

Answer 3

The pacific rim has the worst volcanic activity in the world. In fact, it is so bad that it is also known as the "Circle of Fire" for it.

Answer 4

The worst is around the Pacific Ring of Fire....thats around Asia and America....In my Homecountry in Philippines it did have pretty worst time of volcanic activities there and also in Japan...Dont forget Mt. St Helens in America that was bad.

Answer 5

Lots of constant volcanic action in Hawaii.

Answer 6

photograph voltaic typhoon or no longer the Ice caps won't soften suddenly. the best project is long term temperature increae as is being led to via AGW. photograph voltaic storms are short lived and universal out via the years so having negligible effect on ice caps and glaciers. There are no longer any glaciers on the deep ocean floor. Tectonic plates proceed to flow at their regularly occurring expenses. those activities are on geological time scales and on them people haven't any substantial effects [yet]. failures are coming, yet no longer international huge apocalypse. international places that stay previous their ability can assume to discover themselves in worry. the rustic is the worlds larges debtor us of a via far. Its debt [generally to one/3 international international locations] far outstrips the whole third international debt. quicker or later there'll be a reckoning. you are able to no longer proceed to spend extra beneficial than you earn consistently. Printing extra money purely will enhance that project so it rather is not any longer a answer. [one reason the U. S.$ is persevering with to unfastened fee month after month. One reason international places are a transforming into form of shifting remote from utilising the U. S.$ to do their commerce bargains in.

Answer 7

There is a kids face in McDonalds which is the worst I've ever seen!

Answer 8

Acne

Answer 9

The pacific rim is real bad!

Answer 10

its South pacific
there 2 or 3 valcones cud shoot up ne moment !!!