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Updated every Friday.

Friday, May 1, 2015

May 1, 2015

Was the Nepal earthquake twice as big as we thought?

Amidst the destruction, there was a spat on the issue between the US and China. The US Geological Survey (USGS), which monitors earthquakes worldwide, reported that the Nepal earthquake measured at a magnitude of 7.8. However, the China Earthquakes Network Center (CENC), which hopes to provide a similar service, measured the same earthquake at a magnitude of 8.1.

A difference of 0.3 in the magnitude of the seismic activity may not seem like much, but the apparently small differences in magnitudes of earthquakes reported by different agencies around the world are, in real-life, huge. Because if we are to believe the Chinese data, the Nepal earthquake may have been 2.8 times bigger than if we believe the US data.

This is because of how earthquakes are measured. The scale earthquakes are measured on is not linear...  Read More

What happened this week?

Chile. Calbuco volcano activity. Regional Red Alert due to the volcano's activity. The exclusion area is maintained at 20 km from the crater. 4,514 people have been evacuated and there are 323 in shelters. Sixteen shelters have been set up at regional level. The sanitary alert continues. There is concern for animals being affected by the ash fall... Read More

Chile. Calbuco volcano. Ash from Chile volcano Calbuco hits Brazil and Uruguay. Damage to livestock in Argentina... (Read More ; Read More

Cuba, Havana. Heavy rainfall has caused the death of two people and at least 27 landslides. Shelters have been activated for the population. In Old Havana 151 people had to be evacuated. The rainfall and wind in the capital, on Wednesday, in addition to fatalities caused material losses... Read More

Brazil. The Ministry of National Integration has declared an emergency situation in six municipalities in the state of Amazonas, and in Nova Venecia, Espiritu Santo, due to drought... Read More

Brazil, Salvador. Deadly landslide. At least 14 people were killed in landslides in the city of Salvador in north-east Brazil... Read More

Interesting Facts

Why women are more at risk than men in earthquake-ravaged Nepal. Natural disasters are thought to be indiscriminate killers—but is that strictly true?. It turns out disasters affect women much more than men... Read More

Meaning – Earthquake resistant: Key is to allow the building to swing. Quake-resistant buildings, an expression being widely used these days, refer to buildings that are designed to withstand the shock of earthquakes and not crumble..Read More

What's new in Disaster Risk Reduction?

Earthquake Simulator Aims to Prevent Future Devastation. A construction firm has unveiled a new earthquake simulator it hopes will help prevent the sort of death and devastation caused by mega-quakes... Read More

EU Supports People In Guatemala & Honduras Affected By Drought And Coffee Rust. The United Nations World Food Programme (WFP) has welcomed a contribution of €3 million (US$3.1 million) from the European Commission’s Humanitarian Aid and Civil Protection Department (ECHO) to provide food assistance to approximately 73,000 people affected by the drought in Guatemala and Honduras... Read More

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