Tuesday, 30 June 2015

What Are Volcano Hazards?

However this blogpost was originally written  for the situation in the US I think t is usefull to understand Volcano Hazards all over the world

In November it is 30 years ago the Nevada del Ruiz in Colombia erupted and caused massive lahars (mud and debris flows) which killed more than 20.000 people in the city of Armero

More than 50 volcanoes in the United States have erupted one or more times in the past 200 years. The most volcanically active regions of the Nation are in Alaska, Hawaii, California, Oregon, and Washington. Volcanoes produce a wide variety of hazards that can kill people and destroy property. Large explosive eruptions can endanger people and property hundreds of miles away and even affect global climate. Some of the volcano hazards described below, such as landslides, can occur even when a volcano is not erupting.

 read more on the USGS website >>>

Thursday, 25 June 2015

The situation in Syria.... on a map

A young Dutch mapmaker follows the situation in Syria from day to day and uses several hundreds of sources. And combines the data once a month on a map.

The young mapmaker on twitter: @arabthomness (https://twitter.com/arabthomness)


Source of this map >>>

Saturday, 20 June 2015

underwater cables

A map of all the underwater cables that connect the internet

Cables lying on the seafloor bring the internet to the world. They transmit 99 percent of international data, make transoceanic communication possible in an instant, and serve as a loose proxy for the international trade that connects advanced economies. Their importance and proliferation inspired Telegeography to make this vintage-inspired map of the cables that connect the internet. It depicts the 299 cables that are active, under construction, or will be funded by the end of this year.

 Read more >>>

Wednesday, 17 June 2015

The wetsuit refugees

Last winter two bodies were found in wetsuits, one on a beach in Norway and one on the beach of the island Texel in the Netherlands. They were wearing identical wetsuits.

 The police in three countries were involved in the case, but never managed to identify them.

 Until they found in a tag from the wetsuits a link to a decathlon store in Calais and at the same time a journalist from Norway started his own research and a DNA profiling was done.

They discovered the story of a refugee from Syria who had tried to reach the uk coast.

The whole story in a Norwegian newspaper  >>

Monday, 15 June 2015

Why deeper means safer

The earthquake on the 31st of may off the coast of Japan was big, magnitude 7.8, but it was also deep, at least 370 miles below the Earth's surface. Why that makes a difference.

How could such a large magnitude quake cause so little damage and no serious injuries?
Read more >>>>

Wednesday, 10 June 2015

South-North Water Transfer Project

In the early 1950s, Mao Zedong apparently observed, "The south has plenty of water, but the north is dry. If we could borrow some, that would be good,”

And now 2015 the Chinese government is building a $62 billion South-North Water Transfer Project. The project would divert 44.8 billion cubic meters of water per year from the Yangtze River in southern China to the Yellow River Basin in arid northern China. This is equivalent to nearly half the amount of water consumed in California annually. It will also displace hundreds of thousands of people. An estimated 330,000 people were recently being relocated for the expansion of the Danjiangkou reservoir, which marks the beginning of the project's middle route. While the resettlement program included some improvements over the Three Gorges Project, it was eventually carried out against the resistance of affected people.

Read more on this website >>>

and on this website >>>

Friday, 5 June 2015

London Pavement Geology

There is a wealth of high quality rock samples of all types to be seen in the capital, mostly visible to the public from the pavement. A searchable collection is offered here for the benefit of students, amateurs and professionals alike.

More about this project >>>>

Wednesday, 3 June 2015

Migrants’ Camps in Paris and Calais

More and more refugees from all over Africa find their way to Fortress Europe.   And every few months with new routes. Last weeks via Greek Holiday Islands like Lesbos and Kos.  But not only at the European Borders we have difficulties. News from Paris and Calais: 


French police dismantled last week a makeshift migrant camp that had popped up in the heart of the French capital, the latest sign of a major influx into Europe that France and other countries are struggling to contain.  About 380 migrants from Sudan, Eritrea and Somalia had set up tents under a subway bridge between La Chapelle and Barbes Rochechouart in northern Paris

 Around the same time, police dismantled two camps in and outside the port of Calais. Around 2,300 migrants - mostly from Sudan, Eritrea, Syria - live in the makeshift tent village in Calais, called “the jungle”.

The Geographical question.... Why there ??

Read more >>>

Monday, 1 June 2015

Mount St Helens 35 years ago

Last week it was 35 years ago the Mount Saint Helens in the US erupted


On May 18, 1980 a major volcanic eruption occurred at Mount St. Helens, a volcano located in the state of Washington, United States. The eruption (a VEI 5 event) was the only significant one to occur in the contiguous 48 U.S. states since the 1915 eruption of Lassen Peak in California.The eruption was preceded by a two-month series of earthquakes and steam-venting episodes, caused by an injection of magma at shallow depth below the volcano that created a huge bulge and a fracture system on the mountain's north slope.

  CFUqU8ZVIAAPEaM USGS on  Mt St Helens >>>
Mount St Helens now >>>>
Washington Military Department kreflects on the eruption  >>>>
Satelite images from Mt ST Helens, 1979 until 2014 >>>>
Janine Krippner on the eruption >>>
Mt St Helens eruption: a geo-animation  >>>