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Lucas Appelmann
22,254 followers -
GNU Terry Pratchett
GNU Terry Pratchett

22,254 followers
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That's why I'm doing this. Just trying.

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The bivariate+hexbin mapping technique proves to be as gorgeous and sophisticated as it is intuitive. We love how these maps capture the geographic and historic complexity of this epic US drought. http://p.ctx.ly/r/3p21 #MapsWeLove
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New USGS Maps Identify Potential Ground-Shaking Hazards in 2017: Damage to buildings in Cushing, Oklahoma from the magnitude 5.0 earthquake on November 6, 2016. Unreinforced brick and stone masonry buildings and facades are vulnerable to strong shaking. Photograph credit: Dolan Paris, USGS New USGS maps identify potential ground-shaking hazards in 2017 from both human-induced and natural earthquakes in the central and eastern U.S., known as the CEUS. This is the second consecutive  year both types of hazards are forecasted, as previous USGS maps only identified hazards from natural earthquakes. This research was published today in Seismological Research Letters. Approximately 3.5 million people live and work in areas of the CEUS with significant potential for damaging shaking from induced seismicity in 2017. The majority of this population is in Oklahoma and southern Kansas. Research also shows that an additional half million people in the CEUS face a significant chance of damage from natural earthquakes in 2017, which brings the total number of people at high risk from both natural and human-induced earthquakes to about 4 million. “The good news is that the overall seismic hazard for this year is lower than in the 2016 forecast, but despite this decrease, there is still a significant likelihood for damaging ground shaking in the CEUS in the year ahead,” said Mark Petersen, chief of the USGS National Seismic Hazard Mapping Project. The 2017 forecast decreased compared to last year because fewer felt earthquakes occurred in 2016 than in 2015. This may be due to a decrease in wastewater injection resulting from regulatory actions and/or from a decrease in oil and gas production due to lower prices. Despite the decrease in the overall number of earthquakes in 2016, Oklahoma experienced the largest earthquake ever recorded in the state as well as the greatest number of large earthquakes compared to any prior year. Furthermore, the chance of damage from induced earthquakes will continue to fluctuate depending on policy and industry decisions, Petersen noted. “The forecast for induced and natural earthquakes in 2017 is hundreds of times higher than before induced seismicity rates rapidly increased around 2008,” said Petersen. “Millions still face a significant chance of experiencing damaging earthquakes, and this could increase or decrease with industry practices, which are difficult to anticipate.” Important Note: In the west, USGS scientists have focused on the hazard from natural earthquakes. Induced earthquakes have been observed in California as well, but they don’t significantly change the regional hazard level, which is already high due to frequent natural earthquakes.   What are Induced Earthquakes? Induced earthquakes are triggered by human activities, with wastewater disposal being the primary cause in many areas of the CEUS. Wastewater from oil and gas operations can be disposed of by injecting it into deep underground wells. Injected fluids cause pressure changes that can weaken a fault and therefore bring it closer to failure. Most injection wells do not trigger felt earthquakes, suggesting that a combination of many factors contribute to such events. “By understanding the relationship between earthquakes and wastewater injection, informed decisions can be made on processes such as controlling the volumes and rates of wastewater injected and determining which wells are most susceptible to inducing earthquakes,” said Petersen. Many questions have been raised about hydraulic fracturing—commonly referred to as “fracking”—and more information can be found by reading common questions. States with High Hazard The maps indicate an especially high ground-shaking hazard in five areas of the CEUS in 2017. These same areas were identified in the 2016 forecast. Induced seismicity poses the highest hazard in two areas, which are Oklahoma/southern Kansas and the Colorado/New Mexico area known as the Raton Basin. In those areas, there is a significant chance that damaging levels of ground motion will occur in 2017. Enhanced hazard from induced seismicity was also found in Texas and north Arkansas, but the levels are significantly lower in these regions than that forecasted for 2016. While earthquakes are still a concern, scientists did not observe significant activity in the past year, so the forecasted hazard is lower in 2017. There is also a high hazard for natural earthquakes in the New Madrid Seismic Zone. The NMSZ is the only one of the five identified areas that has not experienced induced earthquake activity. The NMSZ had a higher rate of natural earthquakes in the past three years, leading to a slightly higher hazard potential compared to previous years in portions of Arkansas, Missouri, Illinois, Kentucky and Tennessee. “The 2016 forecast was quite accurate in assessing hazardous areas, especially in Oklahoma,” said Petersen. “Significant damage was experienced in Oklahoma during the past year as was forecasted in the 2016 model. However, the significantly decreased number of earthquakes in north Texas and Arkansas was not expected, and this was likely due to a decline in injection activity.” “There is specific concern in parts of the central U.S. since the forecasted hazard levels are higher than what is considered in current building codes, which only incorporate natural earthquakes,” said Petersen.  People living in areas of higher earthquake hazard should learn how to be prepared for earthquakes. Guidance can be found through FEMA’s Ready Campaign. USGS charts showing the number of earthquakes greater than or equal to magnitude 2.7 since 1980 in the five focus areas identified as having especially high ground-shaking hazard in the central and eastern U.S. in 2017.   Spotlight on Oklahoma Between 1980 and 2000, Oklahoma averaged about two earthquakes greater than or equal to magnitude 2.7 per year. However, this number jumped to about 2,500 in 2014, 4,000 in 2015 and 2,500 in 2016. The decline in 2016 may be due in part to injection restrictions implemented by the state officials. Of the earthquakes last year, 21 were greater than magnitude 4.0 and three were greater than magnitude 5.0. USGS research considers a magnitude 2.7 earthquake to be the level at which ground shaking can be felt. An earthquake of magnitude 4.0 or greater can cause minor or more significant damage. The forecasted chance of damaging ground shaking in central Oklahoma is similar to that of natural earthquakes in high-hazard areas of California.  “Most of the damage we forecast will be cracking of plaster or unreinforced masonry. However, stronger ground shaking could also occur in some areas, which could cause more significant damage," said Petersen. USGS maps comparing the potential to experience damage from a natural or human-induced earthquake in Oklahoma in 2016 and 2017.    Protecting Communities The new report is valuable for making informed decisions to reduce the nation’s vulnerability and providing safety information to those who may be at risk from strong shaking. For example, the 2016 forecast has been used by engineers to evaluate earthquake safety of buildings, bridges, pipelines and other important structures. Risk modelers have used data in developing new risk assessments, which can be used to better understand potential impacts on insurance premiums. The U.S. Army Corps of Engineers has used the information to provide guidance on updating their safety assessments of selected facilities. Continuing collaborations between regulators, industry, and scientists will be important toward reducing hazard, improving future forecasts, and enhancing preparedness. Central versus Western U.S. In recent years, the CEUS has experienced a significant increase in induced earthquakes. Therefore, in the 2017 and 2016 forecasts, scientists distinguish between human-induced and natural seismicity only for the CEUS. Scientists also used a historical catalog of seismic events dating back to the 1700s, putting a strong emphasis on earthquakes that occurred during the last 2 years. Future research, noted Petersen, could take a more detailed look at induced seismicity in the west, including in California at The Geysers, Brawley and small areas of the Los Angeles Basin. Distinguishing Between Induced and Natural Earthquakes  To determine whether particular clusters of earthquakes were natural or induced, the USGS relied on published literature and discussions with state officials and the scientific and earthquake engineering community. Scientists looked at factors such as whether an earthquake occurred near a wastewater disposal well and whether the well was active during the time the earthquakes occurred. If so, it was classified as an induced event. One-Year Outlook The one-year outlook is chosen because induced earthquake activity can increase or decrease with time and is subject to commercial and policy decisions that could change rapidly. The 2016 and 2017 forecasts employ identical methodologies; the only difference is that the 2017 forecast includes an updated earthquake catalog with 2016 events. This allows for a direct comparison from one year to the next. In contrast, the USGS National Seismic Hazard Map assesses natural earthquake hazards and uses a 50-year forecast. That timeframe was chosen because that is the average lifetime of a building, and such information is essential to engineering design and the development of building codes. USGS Science The USGS is the only federal agency with responsibility for recording and reporting earthquake activity nationwide and assessing seismic hazard. These maps are part of USGS contributions to the National Earthquake Hazards Reduction Program, which is a congressionally established partnership of four federal agencies with the purpose of reducing risks to life and property in the United States that result from earthquakes.   USGS map displaying seismic events in 2015 and 2016 in the central and eastern U.S. There is a high hazard for earthquakes in five areas, which are Oklahoma-Kansas, the Raton Basin, north Texas, north Arkansas, and the New Madrid Seismic Zone. USGS map showing the location of earthquakes greater than or equal to magnitude 4.0 in Oklahoma and the Raton Basin in 2016. #usgs #news

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"Huge slabs of Arctic permafrost in northwest Canada are slumping and disintegrating, sending large amounts of carbon-rich mud and silt into streams and rivers. A new study that analyzed nearly a half-million square miles in northwest Canada found that this permafrost decay is affecting 52,000 square miles of that vast stretch of earth—an expanse the size of Alabama.

Permafrost is land that has been frozen stretching back to the last ice age, 10,000 years ago. As the Arctic warms at twice the global rate, the long-frozen soils thaw and decompose, releasing the trapped greenhouse gases into the air.
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For The sauna of learning
SAY IT FINN-STYLY
Finnish idioms are funny, and throw light on the culture. Use some vernacular and impress your Finnish pals!

Meitä ei ole tehty sokerista
"We're not made of sugar"
Response to "I need an umbrella"

Ei olla jäniksen selässä
"We're not riding a rabbit"
We're not in a hurry

Äitinsä näköinen
"Looks like his/her mother"
Not good looking

Melkein ne lehmätkin lentää
"Almost a cow flies"
Response to ex. "I almost passed the test"

Vuonna muusi ja nakki
"In the year of mashed potatoes and wieners"
A long long time ago

Kuin tervan juontia
"Like drinking tar"
Extremely slow, difficult

Irtoaa kuin mummon hammas
"Comes loose like grandma's tooth"
Very easily, smoothly

Tee tai itket ja teet
"Do it or cry and do it"
Something your mum might say...

Näytän sulle, mistä kana pissii
"Let me show you where a chicken pees from"
I'll show you how it’s done

Kiivetä perse edellä puuhun
"Climb arse-first into a tree"
Approach a problem/task incorrectly

Pihalla kuin lumiukko
"Outside like a snowman"
Has no idea what's happening

Olis kirveellä töitä
"There's work for an axe"
That needs correcting (probably harshly!)

Kissanristiäiset
"Cat baptism"
Event so insignificant, no one cares

Kuin perseelle ammuttu karhu
"Like a bear who's been shot in the arse"
Very cranky

Kusee hunajaa
"Pissing honey"
Very happy/satisfied

Hevoset karkaa
"The horses are running away"
Your fly is open

Kaksipa päätä makkarassa
"There are two ends on a sausage"
Things have two sides cf. "Two sides of a coin"

Opin sauna
"The sauna of learning"
School

Ei ole kaikki muumit laaksossa
"Doesn't have all the Moomins in the valley"
A bit nuts/crazy

Kadota kuin pieru Saharaan
"Disappear like a fart in the Sahara"
Vanish into thin air

Ilo ilman viinaa on teeskentelyä
"Life without booze is cheating"

Nenänvalkaisu
"Nose-bleaching"
Not drinking alcohol for a while

The most common and rudest sayings are not listed - you probably already know them!
I'm sure you'll correct my mistakes...
Stu 80)
#finnish
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I live in a state similar to Hungary. As for GDP only, I hope.

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