Which natural disasters is more powerful.?

Question

Which natural disasters is more powerful a supervolcano,hypercane,or mega tsunami.

Answer 1

Supervolcano as it can have a lasting effect worldwide for many years with all the matter and gases it produces, could potentially alter the planets climate.
A hypercane or mega tsunami will not have such a lasting effect although its initial destruction will be on a massive scale.

Answer 2

I'd vote for supervolcano -- it has a huge effect on the land surrounding it, but then it spews a whole bunch of ash into the atmosphere which can cause global cooling. Try looking up Krakatoa in the 1800s -- it caused "the year without a summer" IIRC. Global cooling means crops can't grow, and triggers starvation, which in turn triggers riots and government collapse.

Hypercanes and mega-tsunami have huge effects, but nothing as world-wide as a supervolcano.

Answer 3

Probably a supervolcano. I've been watching these shows on Discovery channel, and I'm starting to think someone over in programming has stock in a drug company that produces anti-anxietey drugs. Sheesh.

From what I see, a hypercane can take out a coastal region, but about as bad as Katrina (with the flooding being done by storm surge instead of failed levees).

A megatsunami would severely impact a coastline. But even where I am in Ontario, California, we wouldn't be affected by a megatsunami that took out Santa Monica. It might trash cities from San Diego up to San Francisco and dump on Juneau, Tokyo, and Honolulu, but far enough inland, like Portland, Seattle, and moi, and we will be safe.

But a supervolcano, like the one under Yosemite going off? Well the ejecta would fall all the way from Reno to Chicago, maybe to New York. It would cool the Earth precipitously by injecting particulates into the upper atmosphere that would take years to settle out. This would lead to crop failures, starvation, human migration, and the inevitable refugee camp diseases, and war.

There is a supervolcano near Krakatoa in Indonesia called Toba. It is believed to have erupted back in about 600 with smaller tree ring growth observed for years as far away as the Americas. Much of England's small towns were abandonned. Trading centers in Eastern Africa failed and were depopulated. And out of the jungle came this strange and new disease living in the fleas of rats, called Y. pestis, or plague.

Longer ago, another supervolcano in the same general area, almost wiped out the entire human population. Mitochondrial DNA studies show that all humans are descended from about 10,000 individuals, although there are signs that larger populations existed earlier.

Freaky stuff.

Support NASA. It's time to get off the planet.

Answer 4

A super volcano, of course! Just like in Stargate Atlantis!

Answer 5

Polar shift. when the north pole becomes south pole and south pole to the north pole. the whole ecosystem would become irratic

Answer 6

super volcano by far.