Definition Of Earthquake Hazard
Seismic hazard is the hazard associated with potential earthquakes in a particular area and a seismic hazard map shows the relative hazards in different areas.
Definition of earthquake hazard. Wiggins grandison noted that the enriquillo plantain garden fault zone could be at the end of its seismic cycle and concluded that a worst case forecast would involve a 7 2 mw earthquake similar in size to the 1692 jamaica earthquake. The behavior of seismic waves as they travel through different parts of the u s. Eqnet earthquake information network. Seismic hazard on the other hand is any physical phenomenon e g.
With a hazard thus estimated risk can be assessed and included in such areas as building codes for standard buildings designing larger buildings and infrastructure projects land use planning and determining. Isc international seismological centre. This includes surface faulting ground shaking landslide liquefaction tectonic deformation tsunamis and seiches. These fires can be started by broken gas lines and power lines or tipped over wood or coal stoves.
Earthquake hazard is anything associated with an earthquake that may affect the normal activities of people. Earthquake definition a series of vibrations induced in the earth s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. The maps are made by considering what we currently know about. The fourth main earthquake hazard is fire.
For example after the great san francisco earthquake in 1906 the city burned for three days. Sichuan earthquake 2008 pakistan earthquake 2005 indian ocean tsunami and. Thus hazards may be either purely descriptive terms or quantitatively evaluated depending on the needs of the situation. Earthquake can be defined as the shaking of earth caused by waves moving on and below the earth s surface and causing.
There are many definitions for hazard but the most common definition when talking about workplace health and safety is. A 2007 earthquake hazard study by c. Gshap global seismic hazard assessment programme. Haiti earthquake 2010 china.
Past faults and earthquakes. They can be a serious problem especially if the water lines that feed the fire hydrants are broken too. A hazard is any source of potential damage harm or adverse health effects on something or someone. A seismic hazard is the probability that an earthquake will occur in a given geographic area within a given window of time and with ground motion intensity exceeding a given threshold.
Basically a hazard is the potential for harm or an adverse effect for example to people as health effects to organizations.