GRADE	Riesgos Risks
Under	The damage that can occur in buildings after the impact of an event is mild and can be treated easily, resolved with simple maintenance most of the time. Hairline cracks are usually seen on the roofs and walls of buildings, mild manifestations of moisture in walls and slabs and in some cases falling bits of plaster, among other minor affectations.
	The land hardly suffers transformations, is able to assimilate and/or easily adapted to the impacts of geological events. These areas are ideal for high-density urban uses and location of critical infrastructure such as hospitals, schools, regular Industries or treatment of hazardous substances (preferably outside the city limits), etc.
No damage.	The majority of shares to offset the impacts should be concentrated on reducing human action that can accelerate it, and environmental education.
	The impact both soil structure as buildings can reach 25%.
	Losses caused by the impact of a geological event can reach 35% of gross domestic product of a country, region or community, or the value of investment in state of no damage.
Moderate	The damage that can occur in buildings after the impact of an event are high and can only be assimilated by performing both preventive and remedial interventions reconstruction and/or rehabilitation of damaged structures. Cracks ranging between 1 and 5 inches thick on the roofs and walls reaching affect the columns and beams of buildings, intense manifestations of moisture in walls and slabs, in many cases partial or total fall of the walls are usually observed constructions of low strength materials, considerable subsidence structures, among other damages.
	It is necessary to implement codes, strict geotechnical and earthquake-resistant standards.
Minor damage.	Losses caused by the impact of a geological event can reach 65% of gross domestic product of a country, region or community, or the value of the investment.
	The land can undergo significant transformations, it is able to absorb and/or adapt to the impacts of geological events by performing preventive and shaping actions, including containment works with concrete or steel, shaped land, pipelines are located, structural steel reinforcements and special concrete, precautionary signs, among others.
	use of these lands for urban uses only low density and high strength construction technician is recommended.
	Urban use is permitted after detailed studies by experienced specialists, to determine the degree of danger and set limits to the previous sector.
	The majority of shares to offset the impacts must be shared between environmental education, declining from human activities can accelerate and increase the structural strength performance requirements under normal following indications raised in earthquake resistant standards and codes, geotechnical against floods, among others.