Saturday, April 11, 2015
Landslide Risks
Landslides are a risk in Thailand, during periods of intense rainfall. These often happen during floods, and so the damage from this rain is dangerous.
This image shows some of the slides in the Krabi Province in March of 2011. These slides were brought about when lots of water entered the soil layer, and then slipped off. Landslides in Thailand almost always come during the rainy season, and so they are affected by mudslides most often.
Resources: http://earthobservatory.nasa.gov/IOTD/view.php?id=49976
Sunday, March 15, 2015
5,395
5,395. That is a very large number and it can be hard to visualize.
But that is the number of confirmed deaths in Thailand due to the massive tsunami in 2004. And Thailand got off lucky. Indonesia alone had 130,000 deaths, and possibly up to 170,000. That is as if Monterey all of a sudden was gone. Thailand was less impacted due to better economic conditions, and that near the shore were concrete hotels, rather than bungalows.
Three months ago, memorials were held on the 10th anniversary of the tsunami. One, on Phuket Island, consisted of paper lanterns released into the air, and hundreds of candles placed in sand castles, as locals and tourists watched in silence.
The Boxing Day Tsunami was caused by a 9.0 Richter scale earthquake located in the Indian Ocean. Waves crashed onto the shores of Indonesia, Thailand, India, Myanmar, and rippled across the world. This tsunami is the greatest catastrophe since 1976, and the worst tsunami in human history.
Before and After arial view of the Khao Lak coastline |
Today, there are many changes in Thailand. In every hotel room, there are emergency flashlights, while hazard signs show the actions to take in case. Thailand is now much better prepared, with a massive tsunami warning system. They should have at least three hours warning now, if the epicenter is in the middle of the Indian Ocean, and with those hours have time to evacuate. The southern infrastructure is stronger, and tourism has returned.
Image Sources:
www.worldatlas.com
www.iwallhd.com
www.trekearth.com
www.surfersvillage.com
Text Sources:
http://en.wikipedia.org/wiki/Effect_of_the_2004_Indian_Ocean_earthquake_on_Thailand
http://en.wikipedia.org/wiki/2004_Indian_Ocean_earthquake_and_tsunami
https://www.dosomething.org/facts/11-facts-about-2004-indian-ocean-tsunami
http://mashable.com/2014/12/26/tsunami-10-year-anniversary/
Saturday, March 7, 2015
Volcanoes
Before we begin, let us provide a quick background. There are 3 major types of volcanoes: shield, composite, and cinder cone, though more complex volcanoes exist as well. These types cover the composition of inner material. Cinder cones contain mostly ash, and tend to smoke, but not cause major damage. Shield volcanoes contain mostly low viscosity magma, slipping out, and tend not to have violent eruptions. Composite or stratovolcanoes contain a mixture of high viscosity (thick) magma and ash. These volcanoes are the most damaging, with huge explosions.
http://perri-n-natural-hazards.wikispaces.com/1.+What+is+a+Volcano+-+History+and+Types+of+Volcanoes |
http://thailandkhmertemple.blogspot.com/2013/11/phanom-rung-temple.html |
http://www.ourweb.info/01/photos/thailand/013/ |
http://www.chiangraitimes.com/what-natural-disasters-could-you-experience-in-thailand.html
http://n-poypoy.blogspot.com/2010/12/volcanoes-in-thailand.html
http://thailandkhmertemple.blogspot.com/2013/11/phanom-rung-temple.html
Pictures sourced from the link below.
Friday, February 20, 2015
Tectonics! Oh No!
Most people know about the major tectonic plates of the world, mostly corresponding to whole continents. But there are little plates too, ones slinking along. Thailand is on one little plate, the Sunda plate. This little plate rests in between four three plates, the Eurasian, Australian, and the Philippine.
Red lines indicate a divergent boundary, green a transform fault, purple a convergent boundary, and blue with arrows a subduction zone. As you can see, the Australian and the Philippine plates are sliding underneath the Sunda plate, pushing it upwards. The Burma plate is moving away from Thailand, but shrinking from India pushing in.
Thankfully, Thailand is far enough away from the Australian plate to avoid volcanoes. Phew. That is a big relief.
Pictures taken from Google Images. Sources are from previous Geology classes, and the legend of the plate map.
Monday, February 16, 2015
Mineral Resources
Thailand also has minor deposits of Copper (Cu), Zinc (Zn), Silver (Ag), and Lead (Pb). These veins are found mainly in andesite.
There are two major gemstones mined in Thailand, sapphires, and rubies.
Raw gold Sources from http://www.dmr.go.th/main.php?filename=Mineral_re_En |
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