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  Latest Training
Environmental Geology
Publisher date : July 2008
Chapter title : Earthquake
Data title : Description

 Description                                              Acceleration per mm/S2

It is not felt. It is detected only with seismographs.

Less that 2/5

It is a weak. It is felt by persons at a suitable places or opper stories of buildings.

2/5-5

It is felt as a mild in the home. The hanging bodies shake. The shaking like a shaking resulting from passing a light truck is caused . It may be doesn't detect as earthquake.

5-10

It is an average. The hanging bodies shake. The shaking like to heavy truck is caused.

With feeling like to shaking the wall resulting of hitting a heavy ball is caused. The windows, plates and doors all shake.

The glasses resulting of the shaking cause a sound. The pottery dishes also cause a sound. At higher that intensity 4, the wooden walls also cause a sound.

10-25

It is rather strong. It is fect outside of homes. The earthquake bearing is approximatable. People wake up. The liquids shake, and even discharge from dish. The small unstable objects are moved or reversed. Doors are open and closed. Curtains, and picture frames are moved. Clocks's pendulums stop, move and their move method change.

25-50

It is a strong. All people feel it.

Most fear, and go out. The walking of people become unbalanced. Windows, plates and crystals break down.

The make up and books and etc fall down from shelves. Frames fall down from a wall. The home's farnitures are moved or reversed. The walls loose plasters and face stones break down. The small rings (church and school) ring. The shaking of trees and crucibles is visible or their rustle sound is heared.

50-100

It is very strong. The stand is a difficult. Drivers and motorcyclists recognize it. The hanging objects vibrate. The furniture break.

The Buildings decay of type 2 is occurred and they creak. The loose pipes located on roof break. The loose plaster of walls.

Free bricks of stones, roof  tiles, and also walls that have not well been built and architecture decorations fall down. Some of buildings of Typec crack. Water of dams are waved an mudy resulting from distortion. Small slips and pores are occurred at sand sheets. Large rings of churches ring. Water ditches that have been built a soild but un regular, are decayed.

It is a destructive. It affects on the act of automobiles motor. Buildings of type C are destroyed, and fall down as part. But Buildings of type A are not destroyed. Some of decorative walls and plasterworks fall down.

The stovepipes, plants chimneys, asphalt rocks, elevators chambers and cabinets twist, and wooden houses and ones having weak structural adhesion move on their foundation. The loose walls fall down. The wearied columns also fall down. The branches of trees break, and flow or water temperature of springs and wells changes. At wet lands and steep slope, the fractures are occurred.

250-500

It is very destructive. It results a fear for people. Buildings of type D are destroyed. Buildings of type C are destroyed very much some times, a complete collapse is occurred, and buildings of type B damage hardly.

500-1000

The complete damage occurs at a foundation of wooden buildings, if they have not a good structural adhesion, they will move. Buildings break. Storage tank damage extensively. Underground pipes break.

The clear creaks are occurred in the ground . At alluvial areas eject a sand and mud from a ground. Springs become seismic and a sand craters are occurred.

1000-2500

It is a disastrous. Most of wooden buildings and their foundation are destroyed. Some of wooden buildings having a suitable build and bridges are destroyed. Dames and walls and stone walls along with rivers damage extensively. Large landslides are occurred. Water ejects inside of channels, rivers, lacks and etc. Sands and moods move on beaches and a flat lands horizontally. Railways curve

2500-5000

There is a complete disaster and a complete destruction is occurred. Large stones move. The previous alignment levels are destroyed.

The objects throw at air. It is accounted.

5000-10000

 Two factors affect on the earthquake destructive effect as follows:

1-     Region geological construction and a land type of one region.

2-     Earthquake focus depth.


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