Skip to main content

What are the differences between natural hazards,disasters, and catastrophes?

 Hazards, Disasters, and Catastrophes

A natural hazard is a process and event that threatens human life and their property. Natural Hazards are repetitive events such as landslides and earthquakes. On the other hand, natural disasters are hazardous events that occur in a limited amount of time in a different area. For example, an earthquake can cause a tsunami somewhere else. A catastrophe is a major disaster that requires a ton of time and money to recover from. An example of a catastrophe is Hurricane Katrina.

Comments

  1. Great first entry.
    From this week on, please remember to add your source of information in your post as well [to get full credits, you'll see that in the rubric for week 2], as hyperlink/s or at the bottom of your post.

    ReplyDelete

Post a Comment

Popular posts from this blog

Tectonic Plates

Brazil is located on the South American Plate. The South American Plate covers all of South America. To the west of the South American Plate is the Nazaca Plate. In addition, the African Plate can be found to the east of the South American Plate. As you can see in the image below, the South American Plate and the Nazaca plate both shift towards each other. In 2015, The South American Plate was responsible for a 7.6 magnitude earthquake that shook the Peru-Brazil boarder.  The eastern side that goes along the African Plate is a divergent boundary. The west side of the plate is a convergent boundary. The northern side is a boundary with the Caribbean Plate is an oceanic crust the North American Plate. References: http://earthguide.ucsd.edu/eoc/teachers/t_tectonics/p_map_plate_layers_bath.html https://watchers.news/2015/11/24/very-strong-and-deep-m7-5-earthquake-hits-peru-brazil-border-region/ http://exampariksha.com/continental-drift-theory-geography-study-material-notes/...

Brazil coastal hazards

A study was conducted in the North East state of Para in Brazil. The study concluded in the last 25 years there was numerous   evidence of natural impacts in the flood and erosion process. Strategies and measures of population adaptation have been implemented, but had limited success. In order to subsidize the Coastal Zone Management Program of Para, natural and socio-economic vulnerability of costal zone buy means of a Geographical Information System based composite coastal vulnerability index. In spite of the data problems and shortcomings, using ESRI's 3.2 program, the CVI score, to classify, weight and combine a number of 16 separate natural and socio-economic variables to create a single indicator provides a reliable measure of differences among regions and communities that are exposed to similar ranges of hazards. The results are presented in 3 maps referred to as Natural, Socioeconomic and Total Vulnerability.  Resource:  http://www.jstor.org/stable/40928754?s...

Week 3 Earthquakes

Brazil is located on the South American Plate. This mid-plate region is known to be the least active stable continental regions in the world. The biggest earthquake they had was recorded at a magnitude of 6.2 mb. In Brazil, you can identify several seismic zones. this also includes carton edges. Brazil has a seismic-building standard that has been enforced since 2006. However, that was based  on the outdated seismic hazard map. Therefore, researchers are suggesting that Brazil update their building codes in order to prevent low-intensity tremors from causing damage RESOURCES: http://www.homelandsecuritynewswire.com/dr20170823-a-new-map-of-seismic-hazards-in-brazil-shows-that-new-building-code-is-required https://www.researchgate.net/publication/266393548_Intraplate_seismicity_in_Brazil