30 Apr

Portugal-Spain: Investigation after Power Outage









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Portugal-Spain
Investigation after Power Outage
Engineers and investigators are still working through the details to explain a massive blackout that left almost the entire Iberian peninsula and portions of southern France without electricity from Monday into Tuesday. Roughly 15 gigawatts of power, or 60% of Spain’s generation, were lost just after 12:30pm on Monday, with the system not brought back to normal operation until almost 23 hours later. With communications and transportation systems rendered inoperable, passengers were forced to sleep in train stations overnight and people were trapped in elevators for almost a full day. Spain’s grid operator, Red Electrica, has ruled out a cyberattack, and the early phases of the investigation are focused on apparent power generation failures in solar plants in southwestern Spain. This blackout event is bringing focus to potential shortcomings in renewable energy sources. Spain is one of the world’s leaders in renewable energy, with 43% of its electric generation coming from wind and solar. However, more traditional forms of electrical generation are known to have greater buffer capacity to protect grids from events like this.

This map depicts the electrical grid on the Iberian Peninsula that was affected by a massive blackout from Monday afternoon into late Tuesday morning. Click on the map to learn more.

Graphic Source: Barron’s
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Sweden
Three Killed in Uppsala Shooting
Swedish police have arrested a 16-year-old suspect after three youths aged from 15 to 20 were killed in a shooting at a hair salon, authorities said Wednesday. Tuesday’s shooting took place in broad daylight a day before the Valborg spring festival in the university city of Uppsala. The motive behind Tuesday’s incident is as yet unclear. Earlier this year, the European Parliament said that Sweden is “currently battling a wave of gang violence.” Authorities in Sweden have been struggling to deal with the outbreak, with growing concerns over the young age of children being caught up in the bloodshed. Guns and explosives are regularly used by rival gangs. After a mass shooting in February that killed 10 people, the government and the right-wing Sweden Democrats party have planned to strengthen the country’s weapon laws.

This map depicts the location of a hair salon in Uppsala, Sweden, which was the target of a shooting. Click on the map to learn more.

Graphic Source: Sweden Herald
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Bolivia
Volcanic Activity Explained
Uturuncu, a stratovolcano in Bolivia’s Andes Mountains, has puzzled scientists for decades. Despite lying dormant for over 250,000 years, it has shown signs of movement since the 1990s, sparking fears that an eruption may be coming. However, a new study has found that an imminent eruption is unlikely. Instead, the movement is caused by swirling of liquid and gas beneath the mountain, rather than an explosive build-up of magma. Based on signals from over 1,700 earthquakes, physics models, and studies of rock properties, the researchers found the magma beneath the mountain is sending hot fluids and gases upwards towards the surface through a narrow conduit, trapping gases and creating seismic rumblings and ground deformation. The research solves a decades-long mystery and contributes to more refined understanding of how fluid dynamics affect volcanic unrest.

This map depicts the location of Uturunco in southern Bolivia. Click on the map to learn more.

Graphic Source: The Sun
 

Yesterday’s Answer

Q: What European country is known for the world’s largest cork forests?

A: Portugal
Portugal is home to the world’s largest collection of cork trees (including the oldest living cork tree on Earth!). Cork forests (Montados in Portuguese) are renowned for their unique biodiversity, with a wide range of plant and animal species that have adapted to the cork oak ecosystem over thousands of years. In fact, they are considered one of the world’s 36 biodiversity hotspots, alongside places such as the Amazon and the African Savanna. These forests cover over 1.8 million acres (730,000 ha) in Portugal and are mainly located in the Alentejo and Algarve regions of the country. Cork oak trees (Quercus suber) are the dominant species in these forests, and their bark is harvested every nine years to produce cork, a versatile and sustainable material used for a variety of products, including wine bottle stoppers, flooring, insulation, and yoga mats.

Source

Today’s Question

Q: The Great Inca Road, the most extensive and advanced transportation system in pre-Columbian South America, goes through how many countries?
 

Stay tuned for the answer to today’s question in tomorrow’s DailyGeo.

 

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