the type of earthquake was a strong one and the building were not made to withstand an earthquake
Minor tornado damage typically includes missing shingles, damaged siding, and downed gutters. Minor Earthquake damage would included cracks in walls. More severe tornado damage would include the removal of the roof and sometimes walls with some debris blown down wind. Earthquake damage might include partial collapse and/or damaged supports. In the very strongest of tornadoes structures can be torn clean off their foundations, and are sometimes carried significant distances. The very strongest of earthquakes will cause most structures to completely collapse, leaving behind piles of rubble.
cause it just did.....
Earthquake shock absorbers do exactly what they say on the tin, they absorb some of the energy generated by an earthquake, in order to prevent structural damage. Most tall building in San Francisco are built on the shock absorbers, so that they can still stand after an earthquake
Hurricanes can cause severe flooding though both rain and through storm surge, which essentially pushes the ocean onto land. These can damage or destroy property. Additional damage is caused by the powerful winds of hurricanes, which can damage roofs and siding and destroy some weaker structures. Hurricanes can also produce severe thunderstorms and tornadoes.
The Chile earthquake, powerful as it was, was not nearly powerful enough to tilt the earth. If you imagine a large bell in a cathedral and you hit that bell with a spoon, that is about the effect that an earthquake has on the earth as a whole. It caused some MAJOR destruction and caused Chile to pay millions for the damage, and many people were killed or injured.
some damage was done in some old buildings in Pomona
Many do, yes. Some earthquakes cause abolsutely catestrophic damage.
An earthquake causes terrain damage due to the plate tectonics movement. This will cause some parts of the earth surface to become loose and sink in which will result into terrain damage.
1906 San Francisco earthquake. Damage still can be seen on some older buildings.
There was plenty of warnings that Mt. Vesuvius would erupt. That's why so many people actually escaped. There were earth tremors and small quakes for weeks before and the water sources were drying up. The smart ones read the signs and got out.
Minor tornado damage typically includes missing shingles, damaged siding, and downed gutters. Minor Earthquake damage would included cracks in walls. More severe tornado damage would include the removal of the roof and sometimes walls with some debris blown down wind. Earthquake damage might include partial collapse and/or damaged supports. In the very strongest of tornadoes structures can be torn clean off their foundations, and are sometimes carried significant distances. The very strongest of earthquakes will cause most structures to completely collapse, leaving behind piles of rubble.
cause it just did.....
There are several New York states that are in the greatest risk of earthquake damage. Some of the top states include Binghamton, Buffalo, Plattsburgh and Elmira among others.
The damage due to ozone layer problem is severe and is expected to be more severe. Some natural process that are adversely effected by ozone depletion are global warming, flooding, melting of glaciers etc.
A severe earthquake, or perhaps a direct strike by a large aircraft, but these risks are now allowed for in design. Of course you can't test directly to see if the design measures are sufficient. A direct hit by a nuclear weapon could do some damage too.
Magnitude is a term used to describe how much energy was released by an earthquake. It gives an indication of the amplitude of the seismic waves that occur and also on the length of the fault rupture zone and the displacement along the fault. A magnitude 7 earthquake is defined by the US Geological Survey as a "major" earthquake. In general earthquake over a magnitude of 4 or 5 can cause damage although the exact reasons why some earthquake are more damaging than others is more complext than just the absolute magnitdue of the earthquake. For more information on this, see the related question.
Earthquake shock absorbers do exactly what they say on the tin, they absorb some of the energy generated by an earthquake, in order to prevent structural damage. Most tall building in San Francisco are built on the shock absorbers, so that they can still stand after an earthquake