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We hear about earthquakes in the Himalaya, especially when they claim lives and cause damage. And we understand that, broadly speaking, it is the continued northward movement of India ploughing into Tibet that causes these earthquakes. But where exactly do the earthquakes occur, how do they occur, and what determines how much damage they inflict? Roger Bilham has conducted a detailed study of the historical record of earthquakes in the Himalaya over the past millennium. He tries to reconcile what we've observed with our current understanding of the physical mechanisms at play. This in turn helps us assess future hazard potential. He is Emeritus Professor of Geology at the University of Colorado, Boulder. For podcast illustrations and more about Geology Bites, go to geologybites.com.
In a study published in Geophysical Research Letters earlier this year, Roger Bilham of the University of Colorado and Rebecca Bendick of the University of Montana predict that, because of Earth’s slowing rotation, the world will see a significant spike in large earthquakes in 2018. Jeff and Anthony take a look at their findings to decide whether they should start to panic. GET BONUS EPISODES, VIDEO HANGOUTS AND MORE. VISIT: http://patreon.com/wehaveconcerns Get all your sweet We Have Concerns merch by swinging by http://wehaveconcerns.com/shop Hey! If you’re enjoying the show, please take a moment to rate/review it on whatever service you use to listen. Here’s the iTunes link: http://bit.ly/wehaveconcerns And here’s the Stitcher link: http://bit.ly/stitcherwhconcerns Or, you can send us mail! Our address: We Have Concerns c/o WORLD CRIME LEAGUE 1920 Hillhurst Ave #425 Los Angeles, CA 90027-2706 Jeff on Twitter: http://twitter.com/jeffcannata Anthony on Twitter: http://twitter.com/acarboni Today’s story was submitted by Jeff_Rose: https://qz.com/1133304/as-earths-rotation-slows-2018-could-see-a-spike-in-large-earthquakes/ If you’ve seen a story you think belongs on the show, send it to wehaveconcernsshow@gmail.com, post in on our Facebook Group https://www.facebook.com/groups/WeHaveConcerns/ or leave it on the subreddit:http://reddit.com/r/wehaveconcerns
Geologists Rebecca Bendick (pictured) and Roger Bilham predict that 2018 will have more powerful earthquakes. The researchers say the earth's rotation is slowing down and could cause major quakes. Below are links to their research https://gsa.confex.com/gsa/2017AM/webprogram/Paper300667.html http://onlinelibrary.wiley.com/doi/10.1002/2017GL074562/full
What might the length of the day have to do with the likelihood of destructive earthquakes around the world? According to Professors Rebecca Bendick and Roger Bilham, there's a correlation between changes in the rate at which the Earth rotates and the incidence of earthquakes of Magnitude 7 and above. The rotation speed of the planet increases and decreases over periods of years and decades. From their research, the earth scientists say that there's an substantial increase in the number of powerful earthquakes around the world five years after the Earth attains a peak in its spin speed and enters a period of slow down. The difference in day length is tiny but it is enough, say the researchers, to trigger already stressed faults in the crust to move sooner than later. In the year that the Soviet Union launched Sputnik into orbit, the UK launched its own rocket into the Space Race. 1957 saw the launch of the first Skylark space rocket. Inside Science talks to two veterans of the Skylark programme - Professors John Zarnecki and Ken Pounds - who cut their space research teeth with some of the 440 launches. The Science Museum in London is staging a Skylark exhibition in celebration. Francis Galton was one of the UK's most influential 19th century scientists and laid important methodological foundations for genetics and other fields of science today. But he was also a racist and leading proponent of eugenics. Adam discusses Galton's legacy with historian Subhadra Das of University College London and clinical geneticist Han Brunner of the Maastricht University Medical Centre in the Netherlands. Both guests attended a meeting of the Galton Institute in London which brought together researchers of many disciplines to discuss the bad and the good in Francis Galton's legacy. Producer: Andrew Luck-Baker.
Nepalese Earthquake The earthquake that struck central Nepal last weekend measured 7.8 in magnitude and has affected up to 1.4 million people. Inside Science reporter Roland Pease joins Adam to discuss the topography of Nepal, and its vulnerability to earthquakes. We hear from Roger Bilham, a seismologist at University of Colorado, and Alex Densmore from Earthquakes without Frontiers on seismic activity in the Himalayas and the difficulty in measuring the scale of the disaster. Monkey Nuts Capuchin monkeys use stone tools to crack open nuts they want to eat. New research by Madhur Mangalam and Dorothy Fragaszy has shown that they moderate the force they use to open these nuts based on whether the nut shows any cracks from previous strikes. This motor skill demonstrates their dexterity as they are picking the optimal way to complete their task. Scientists hope these findings could help to explain the differences in cognitive processes between non-human primates and hominids who learnt to shape stone tools. Maritime light pollution Around a fifth of the world's coasts are illuminated at night by lights and as LEDs grow in popularity we can expect to see these areas get brighter. But until recently the effects of this light on the marine ecology was a relatively unknown and understudied phenomenon. Adam talks to Thomas Davies whose research published this week has highlighted how light is affecting marine organisms; attracting organisms like keel worms whilst repelling others. Wellcome Collection & Bacteria Light Artists, microbiologists, doctors and geneticists will gather at the Wellcome Collection in London this weekend for the Bacteria Light Lab, an event exploring how light is providing the tools for discovering more about bacteria and infections, part of the 'On Light' weekend at Wellcome Collection. Inside Science went along to meet artist Anna Dumitriu and Dr Nicola Fawcett and view- what appear at first glance - somewhat esoteric looking pieces of art which are actually shedding light on the hidden kingdom of microbiology. Producer: Adrian Washbourne.