14 votes
Accepted

Why do human populations concentrate near fault lines, volcanoes, etc.?

You're asking Why do human populations concentrate near fault lines, volcanoes, etc.? But the real question is Do human populations concentrate near fault lines, volcanoes, etc.? And the ...
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8 votes

Relationship between natural disaster and global warming, in the media

First thing first: It is very hard, if not impossible, to attribute a single anomalous weather event to climate change. The weather exhibits a huge amount of natural variation. The recent spate of ...
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7 votes

What is the difference between a flood and a mudslide?

A flood occurs when land that is normally dry is covered by water. The source of the flood water is generally from bodies of water, such as: rivers, lakes, dams and even the ocean. Rivers can flood, ...
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7 votes

Would an oceanic asteroid impact really cause a tsunami?

An asteroid impact in the ocean is an oversized example of throwing a pebble in a pond - both will produce waves in a concentric pattern from the point of impact. The height of the waves and the ...
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5 votes

Does global warming affect tsunamis?

Pretty confident to answer No here. Tsunamis are caused by water displacement due to earthquakes; this has nothing to do with global warming. Any changes in density would be trivial, and although ...
5 votes
Accepted

Safest spots when an asteroid hits?

Being in a submarine in the ocean is not a good idea because if a large asteroid hits the ocean the shock wave created, and its energy, would be very large. If the submarine survives intact its ...
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5 votes
Accepted

How to determine constant $C$ in $p(x) = Cx^{-D}$?

There are two solutions using the least square method for calculating $C$ and $D$. Both methods yield different results for your constants. There is no correct method. Method of least Squares We ...
5 votes

How big a risk is Mount Vesuvius for the local population?

There are lot of studies on the past activity of Mount Vesuvius. Eruptive deposits have been studied and dated in order to reconstruct the type and timing of past eruptions. This can give some ...
5 votes

how are the global effects of local environmental disasters?

An excellent example of this would be the Mount Pinatubo eruption in 1991. The specific nature of this eruption features massive amounts of aerosols and ash put into the atmosphere. When Mount ...
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4 votes
Accepted

How long would it take for Mars to cool after asteroid impact?

It would be interesting to read peer reviewed scientific papers that discuss the feasibility of "restarting Mars' core" via an asteroid impact. Some links would be appreciated. I am very sceptical ...
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4 votes
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Wildfire acreage, two dimenional or three?

The same issue arises when land is bought and sold. The area used is the flat area from a plan. Slope is not considered because it would require at lot of data because the rate of change of topography ...
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4 votes
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How is climate change today different than the climate change that ended the ice age(s)?

Difference #1: Speed. The warming at the end of the ice ages went much, much slower than what we are currently experiencing. Estimates of the amount of warming since the beginning of the industrial ...
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3 votes
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Why don't forest fires in Western Australia get as much attention as forest fires in the southeast of the country (including SA)?

Forest fires, and natural disasters in general, get attention when they affect people. Bush fires outside of metropolitan Perth or far away from populated areas do not affect many people. Therefore, ...
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3 votes
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Have there ever been significant events of ecological or geological disasters occurring simultaneously alongside extreme meterological disasters?

Here's an amazing one: In June 1991 category 3 Typhoon Yunya made landfall in central Luzon in the Philippines and gradually weakened as it moved across the island... however as it was near exiting ...
3 votes

Chicxulub Asteroid Remains?

There are micro-tectites galore, strewn over thousands of square kilometres. But remains of the actual bolide? Hard to say, because the impact crater is now buried under 600 metres of sediment. ...
3 votes

How to determine constant $C$ in $p(x) = Cx^{-D}$?

C is purely empirical for any given situation. BEWARE of such equations! Using coefficients to six significant figures gives the illusion of high precision when, in fact, the whole approach is ...
2 votes

Can climate change cause earthquakes, tsunamis, or volcanic eruptions?

A quote from the summary of the book you listed: feeding torrents of freshwater into ocean basins that rapidly filled to present levels. The removal of the enormous weight of ice at high ...
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2 votes

What does the term spreading the risk mean, with regard to natural disasters?

Suppose you don't have your house insured. When natural disaster strikes your uninsured house, you are fully responsible for the costs in getting your house repaired. If you have a mortgage on your ...
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2 votes

What does the term spreading the risk mean, with regard to natural disasters?

Insurance may be the best example. As the document you linked to describes in some detail, there are lots of ways of spreading risk. Traditional insurance is one common mechanism. I think their point ...
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2 votes

Spatial extent and predictability of various hazards.

Drought is not comparable to earthquakes and hurricanes because of the difference in time scale involved. We can generally consider earthquakes and hurricanes to be discrete events at a point in time. ...
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2 votes
Accepted

how are the global effects of local environmental disasters?

I'll add to Ben MS's answer by mentioning the 2010 eruption of Eyjafjallajökull in Iceland, that shut down air traffic for quite some time. Another example that comes to mind are tsunamis. The 2004 ...
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2 votes
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Does being in the air provide any protection from an asteroid?

To answer the radiation question, it is both absorbed and reflected into space. A lot of these processes are complex relations between atmosphere, magnetosphere, and solar radiation. Solar radiation ...
2 votes
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How would a particle travel in a hurricane?

You can find diagrams of air flow in hurricanes. If your balloon has neutral buoyancy it will go with the flow. Good luck in the complicated currents in the rainbands and eyewall.
2 votes
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Are strong deep earthquakes that result in minimal impacts common?

Depends where you are in the world, New Zealand has a combination of deep and shallow earthquakes, the shallow ones are associated with the slip-strike faults in the south. The deeper ones on the ...
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2 votes
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How to curb losses during annual heavy rainfalls

Flood control measures largely depend on: The amount of money available to create flood control measures The availability of raw materials that could be used to create such measures The locality of ...
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1 vote

How is climate change today different than the climate change that ended the ice age(s)?

There is a major difference. The climate changes that caused the end of the last Ice Age (and the start/end of previous ones) were basically the result of changes in the Earth's orbital eccentricity ...
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1 vote
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Does being under water provide any protection from a asteroid?

No. It depends on the severity. Water would be worse. If an asteroid hit in the ocean we would experience tsunamis the size we get from large magnitude earthquakes. The displacement of the water would ...
1 vote

Have there ever been significant events of ecological or geological disasters occurring simultaneously alongside extreme meterological disasters?

Yes. Here's a list of common disasters that associate with each other: A twister (tornado) that fused with a wildfire (aka: a firenado) A cyclone (Hurricane) that caused a tsunami (common) An ...
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