Direct earthquake disasters refers to geographical disasters
and damage of residential houses, engineering structure,
items and other physical things due to the destructive
effect of earthquake, that is great vibration of earthquake.
The disasters include the following aspects:
Building on the ground and with a large area, residential houses
are the main object of the earthquake. The collapse of houses
not only causes huge economic losses, but also resulted
in the crushing of the occupants, causing casualties and
damage to indoor property.
Artificial infrastructure, such as transportation, electric power,
communication, water supply, drainage, gas, oil, heating
and other lifeline system and dams, irrigation system and
other water conservancy projects is all the objects of earthquake.
This consequence of damaging these facilities includes
two aspects, which are the loss of value and funtions.
The loss of function of lifeline system in urban city
also brings great obstacles to disasters relief and
aggravates the disaster.
The damage of industrial facilities, equipment andd installations
obviously brings huge economic loss and affects normal supply
and economic development.
Outdoor property such as Livestock and vehicles were
also damaged by the earthquake.
Landslide, collapse and other phenomenon caused by large
earthquake will damage infrastructure, farmland and so on,
resulting in the destruction of forest land and farmland.