Earthquake Platform

Magnitude

Felt destroy degree

1.0

Not felt.

1.0-2.0

Generally not felt, but someone can feel it indoors.

2.0-3.0

Indoors someone can feel little noise of hanger, door and window.

3.0-4.0

Indoors most of people and outdoors less people can feel it; less people wake up in the dream; door, window and hanger swing obviously and kitchen ware start sounds.

4.0-5.0

Everywhere indoors, most of people indoors feel obviously, most of people wake up in the dream; door& window, roof, roof truss will vibrate and sound; dust drop out; plasterer appear minuteness break; eaves tile drop out; several chimney on the roof start drop bricks; unstable utensils shakes or turnover;

5.0-6.0

Most of people cannot stand stable and less people escape outside thrilling; the wall appear breaks; eaves drop out and less chimney on the roof have breaks; river bank and mollisol appear breaks; saturated and sand layer have sand blast and flowing; some independent chimney appear slight breaks;

6.0-7.0

Most of people escape to outside thrillingly; the people who ride on bike can feel it and it is slightly destroy; the driver on the road can feel slightly destroy; houses have local failure or craze; river bank appear collapse; saturated sand layer often see sand blast and flowing; yielding ground have more breaks; most of independent brick chimney have moderate damage.

7.0-8.0

Most of people feel shake and bumpy and difficult to walk; house are moderate damage and need repair it to use; it has breaks on the dry soil and most of independent brick chimney destroy seriously; treetop was break off and destroyed house lead to the death of people and livestock.

8.0-9.0

The moving people will fall on the ground; building are destroyed; part of them collapse which are difficult to repair; there are many breaks on the dry soil; it may appear breaks, diastrophism; landslip and collapse will be seen at many places; many independent brick chimney collapse.

9.0-10.0

The people who ride a bike will fall down and the people who stand unstable will fall to other places; most of the collapse, landslide and earthquake breakage appears; arch bridge will be destroyed on the bed rock; most of the independent brick chimney destroyed from the root or collapse.

10.0-11.0

Widespread collapse, earthquake breakage last long and many landslide.

11.0-12.0

The ground change seriously and river and mountain are changed the appearance.

Name

Magnitude Range

Earthquake Effects

Micro

Less than 1

People cannot feel, only device can test it.

Minor

1 to 3

Only device can test it.

Light

3 to 5

People can feel, also called felt earthquake, but it cannot cause destroy.

Major

5 to 7

This magnitude will cause varying degrees destroy.

Great

More than 7

This magnitude can cause very serious destroy.