Volcanoes generally are easier to predict, although the specific time of the eruption is not so easy to do. Scientists can measure changes within the mountain that helps them to predict that the volcano is going to erupt. This usually allows the Local Authorities sufficient time to evacuate people from the danger area as seen at both Mt. Helens and Mt. Time of day influences whether people are in their homes, at work or travelling. A severe earthquake at rush hour in a densely populated urban area could have devastating effects.
The time of year and climate will influence survival rates and the rate at which disease can spread. The effects of an earthquake or a volcano in LEDCs Communication systems may be underdeveloped, so the population may not be well educated about what to do in the event of a volcanic eruption or an earthquake.
Effects are often classified as primary and secondary impacts. Primary effects occur as a direct result of the ground shaking, eg buildings collapsing. Secondary effects occur as a result of the primary effects , eg tsunamis or fires due to ruptured gas mains. Edda Hatukaev Professional. Can we predict earthquakes? While part of the scientific community hold that, taking into account non-seismic precursors and given enough resources to study them extensively, prediction might be possible, most scientists are pessimistic and some maintain that earthquake prediction is inherently impossible.
Rochell Paveiro Explainer. How do earthquakes cause loss of life? At the Earth's surface, earthquakes may manifest themselves by a shaking or displacement of the ground.
Sometimes, they cause tsunamis, which may lead to loss of life and destruction of property. An earthquake is caused by tectonic plates getting stuck and putting a strain on the ground. Melodie Pflugradt Explainer. What are the long term effects of earthquakes? Earthquake experience in the early years of life has long - term effects on adult resting heart rate, total cholesterol, and fasting plasma glucose, especially among men. Ilune Muhlenbernd Explainer. How do we measure earthquakes?
Earthquakes , until recently, have been measured on the Richter scale. The Richter scale measures the magnitude of an earthquake how powerful it is. It is measured using a machine called a seismometer which produces a seismograph. A Richter scale is normally numbered , though there is no upper limit. Xiurong Elezaga Pundit. Do bigger earthquakes mean more deaths? The classic saying among geologists is that earthquakes don't kill people — buildings do.
Nothing makes a bigger difference in an earthquake's death toll than infrastructure, especially when population is dense. What factors influence the effects and response to tectonic activity? Buildings in More Economically Developed Countries MEDCs are more likely to withstand an earthquake, because they may be designed to withstand tremors. They may have seismic isolators e. Japan or deep foundations e. In an earthquake measuring 7. Only people were killed.
However, in LEDCs the buildings are often of poor design because of cost. This is one reason why earthquake damage in LEDCs is usually greater.
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