Fracking causing minor earthquakes in BC regulator

CALGARY — A spate of small earthquakes in B.C.’s remote northeastern corner were caused by a controversial technique used to extract natural gas from shale rock, says a report by the province’s energy regulator.The B.C. Oil and Gas Commission launched its probe after a “number of anomalous, low-level seismic events” were detected in the Horn River Basin, a gas-rich shale formation that’s attracted some of the industry’s biggest players.“The investigation has concluded that the events observed within remote and isolated areas of the Horn River Basin between 2009 and 2011 were caused by fluid injection during hydraulic fracturing in proximity to pre-existing faults,” the agency said.[np-related /]In order to break the rock and free the gas trapped inside of it, companies inject a combination of water, sand and chemicals underground at high pressure.The process known as hydraulic fracturing, or fracking, has drawn concern from environmentalists and landowners for the amount of water the process requires and for potential contamination of groundwater.Studies have also linked fracking to earthquakes around shale formations in England and Oklahoma.The 38 events detected by Natural Resources Canada ranged between magnitudes of 2.2 and 3.8 on the Richter scale. A quake of between 4.0 and 4.9 is considered “light” and may cause a noticeable shaking of indoor items and rattling noises.Only one of the quakes was felt at the surface by “workers in the bush” on May 19, 2011 and there have been no reports of injury or property damage.“In undertaking the investigation, the commission notes that more than 8,000 high-volume hydraulic fracturing completions have been performed in northeast British Columbia with no associated anomalous seismicity,” the report said.The report said no quakes were recorded in the area prior to April 2009.It said all of the events began after fracking took place. The quakes happened within five kilometres of fracking operations and within 300 metres of the depth at which the rock was being fractured.Among other things, the report recommends improvements in seismic detection in the area, further study to identify pre-existing fault lines and stronger monitoring and reporting procedures.It also calls for an examination of the relationship between hydraulic fracturing parameters and seismic activity. For instance, lower pump rates or injection volumes may be considered.“It is essential to take pre-emptive steps to ensure future events are detected and the regulatory framework adequately provides for the monitoring, reporting and mitigation of all seismicity related to hydraulic fracturing, thereby ensuring the continued safe and environmentally responsible development of shale gas within British Columbia,” says the report.The Canadian Press read more

Luka Karabatic joins Aix

The Luka Karabatic – Montpellier story is finishing, and he is going to be new member of Aix. He will join the club these days and sign a two-year contract, keeping him at the club until June 2014. His last match in Montpellier’s shirt was therefore, the heavy defeat away at PSG. ← Previous Story LNH: Montpellier finally win, 36-32 against Aix! Next Story → Hungary: Pick Szeged loses a point against Tatabanya

Lots of Irish people are getting spammed with Harry Potter quotes and

first_img Source: Jane Horgan-Jones/Twitter Has anyone else been getting spam emails with quotes from Harry Potter over the last few days? Or is this honestly just me?— Aidan (@AidanCoughlan) June 25, 2014 People are pretty puzzled. My favourite #spam mail to date, a quote from #HarryPotter book. Guessing Prisoner of Azkaban?— Ali McKenna (@AliMcKenna_) June 24, 2014 HAVE YOU HAD any spam emails recently? If so, there’s a decent chance they involved quotes from the Harry Potter novels.There is a rash of Harry Potter-based spam descending on the internet. Dozens of Irish and international Twitter users have noted it. Source: Aidan Coughlan/Twitter Another spam email/Harry Potter excerpt: THE DARK LORD LIES ALONE AND FRIENDLESS ABANDONED BY HIS FOLLOWERS— Philip Whitman (@phw3g) June 23, 2014 So I presume I’m not the only one getting weird Harry Potter themed spam from my gmail contacts?— Jane Horgan-Jones (@horganjonesjane) June 23, 2014 The quotes are one or two sentences from the novels, selected apparently at random. So what’s causing all the Harry Potter spam? We asked Sal McDonagh of Irish internet security firm Copperfasten Technologies, who make the SpamTitan anti-spam engine.He told that the wave of Harry Potter quotes are an attempt to evade one of the main anti-spam technologies. Basically, anti-spam engines work with three levels of filters:RBLs – essentially blacklists of IP addresses known to be used by spammersURIBLs – engines that look up any links in the email and check them against a blacklist of spam sites.And lastly, a Bayes engine, which acts on anything that’s got through the other two filters. And is the part that’s relevant here. Source: Philip Whitman/Twitter Source: Susan/Twitter Source: Ali McKenna/Twitter Seems like a legit, possibly Harry Potter related email. Not at all spam. #hedwig cc/ @bigcityclaire @yourFreddybear— susan 🌎 (@smoozle) June 24, 2014 Source: BlogSpotSo what on earth is that?A Bayes engine, says McDonagh, is basically a statistical system for working out which words and phrases spam emails are likely to use.It can be used to assign to scores to different words and say this word is more likely to appear in spam. So ‘Viagra’ or ‘Canadian pharmacy’ would be simplistic examples.The Harry Potter quotes, then, are an attempt to fool the Bayes engine into thinking it’s dealing with Harry Potter fans rather than spam.But why suddenly loads of Harry Potter?The reason that all the Harry Potter spam is coming at once is that Bayes engines learn – so spammers have to move quickly to beat them. “Spam comes in waves,” McDonagh says:What happens is that as people mark email as spam, the engine learns from that. And the more [Harry Potter] emails people click on, the more it learns. It’ll probably learn quite quickly to identify them, so they’ll then move on to the next author or popular meme.It’s not just fiction, either.They tend as well to use the latest news items. So if there’s some celebrity on the news, they’ll use quotes from that because they’re much harder to filter.Wait. Does this mean I’ll never be able to quote Harry Potter in an email ever again?No. The Bayes engines also learn to forget, says McDonagh – so that as the Harry Potter spam dies out, it drops out of the filter. Give it a month or so and you can send all the fanfic you want.More: Your fridge may have sent out spam without you even knowing>last_img read more