Whoa, we stumbled across this LA Times crazy dataviz from the U.S. Geological Survey who unveiled this map of earthquakes. The interesting part was that they thought the earthquakes could be triggered by human activity!
How can this be? “…officials are coming to terms with the idea that wastewater disposal following oil and gas extraction is causing more earthquakes. Hydraulic fracturing, or fracking, involves shooting a high-pressure mix of water, sand and chemicals deep underground to extract oil and natural gas. The resulting wastewater is often forced underground as well, but can trigger earthquakes on faults that haven’t moved in a very long time.”
What a huge growth since 2012 to 2014! Great dataviz, not-so-great news.

