Himalayan Megaquakes Powered By Elastic Energy In Tibetan Plateau

first_imgShare Share via TwitterShare via FacebookShare via LinkedInShare via E-mail Computer simulations indicate that Himalayan mega-earthquakes must occur every 1,000 years or so to empty a reservoir of energy in southern Tibet not released by smaller earthquakes, according to a paper that will appear in the Nov. 9 issue of the journal Nature. Colorado researchers Roger Bilham and Nicole Feldl co-authored the paper “Great Himalayan Earthquakes and the Tibetan Plateau.” Their research was funded by the National Science Foundation. Bilham is a University of Colorado at Boulder geology professor and associate director of the Cooperative Institute for Research in Environmental Sciences or CIRES. Feldl is a research scientist at UNAVCO, a national Global Positioning System consortium founded by CU-Boulder and funded by the National Science Foundation. In their report, the researchers reveal that earthquakes in the past 200 years in the central Himalaya, though catastrophic, have released relatively modest amounts of the energy of India’s collision with the Tibetan plateau compared to three massive earthquakes that occurred in medieval times. They base their claims on GPS point motions across the Himalaya that indicate where strain energy is stored. The researchers ran computer simulations on how the energy was released, which yielded clues on the approximate recurrence intervals of past Himalayan earthquakes. In the past, experts resorted to estimating the timing of future earthquakes from the slip that occurred in former ones. However, the new information should help scientists forecast future seismic activity in the region, Bilham said. “We had always assumed that earthquakes in the region were driven by the release of energy accumulating near the Greater Himalaya,” he said. “Our recent calculations suggest that a substantial volume of the southern Tibetan plateau plays a significant role in driving great ruptures. Exhumation of ancient archives and surface ruptures are now needed to show the details of this process in the past 2,000 years to help us forecast future earthquakes – and save lives.” The Greater Himalaya forms a 2,000-kilometer arc separating northern India from Tibet and boasts the world’s highest peaks, including the loftiest of all, Mount Everest, at more than 29,000 feet. The region is highly prone to earthquakes and has produced some of the deadliest on earth. Last year, 74,000 people died in the Kashmir region during a relatively modest earthquake, 7.6 magnitude. Computer simulations based on GPS data in the region reveal that the Tibetan plateau contains an invisible reservoir of “elastic strain energy” that is partly depleted each time an earthquake hits the region. The researchers contend that only gigantic earthquakes could fully deplete this reservoir of strain. Their models also show what they call “two puzzling features of plate boundary seismicity.” “Our findings show that great earthquakes – those with a magnitude of 8.2 or greater – can re-rupture regions that already have ruptured in recent smaller earthquakes, or those with a magnitude of 7.8 or below,” Bilham said. Mega earthquakes, those with a magnitude of 8.4 or greater, apparently occur every 1,000 years and are driven by residual strain following centuries of smaller earthquakes, or those with a magnitude of 7.6 or lower, according to the Nature report. The CU-Boulder researchers said conditions exist in the Himalaya today that could drive four or more earthquakes measuring more than 8.0 on the Richter scale. However, they added, these earthquakes would be even deadlier if they were delayed for another 500 years and occurred as mega-quakes exceeding 8.4 magnitude on the Richter scale. Published: Nov. 5, 2006 last_img read more

Fast-moving nor’easter bringing heavy rain, gusty winds to Northeast

first_imgABC News (NEW YORK) —  A storm is developing along the East Coast and will bring widespread heavy rain, strong wind gusts, coastal flooding and possible snow to parts of the Northeast on Saturday.A deepening low pressure located near the Delaware-Maryland-Virginia peninsula will move toward New England over the next 24 hours.An observation site in Belmar, New Jersey, saw a gust of 62 mph Saturday morning, while Manasquan, New Jersey, saw a gust of 58 mph. Some parts of Cape May and Atlantic counties in southern New Jersey have reported over 1 inch of rain so far.Flash flood watches, high wind warnings and wind advisories have been posted for parts of the Northeast coastline.Due to the onshore winds, coastal flooding could be a concern for parts of the region, especially along the Jersey shore. Winter weather advisories have been posted further inland for parts of the higher elevations in the interior Northeast. Some light snow is possible, especially in the predawn hours Saturday morning.Heavy rain and gusty winds are expected to impact nearly the entire Northeast on Saturday morning. Winds along the Jersey shore and Delaware coast will gust over 40 mph in spots. In New York and Philadelphia, winds gusts over 30 mph are likely. Some of these gusty winds, especially on Long Island and the Jersey shore, could down trees and power lines and make power outages possible.The bulk of the precipitation will have moved into northern New England and southern Canada by early Saturday evening. However, as the storm deepens in intensity, it will bring widespread gusty winds to all of New England. Wind gusts could exceed 40 mph Saturday evening from Connecticut to Maine and especially into Vermont and New Hampshire. The gusty winds could down power lines and trees.The nor’easter is moving pretty fast and will be out of the Northeast by Sunday morning. Rainfall totals will likely be 1 to 2 inches for most of the Northeast, with some areas seeing locally higher rainfall.Meanwhile, a new disturbance is developing in the upper Midwest and will bring rain to parts of the region by Sunday. Some of the rain could be heavy at times, especially in Wisconsin.This disturbance will move very quickly through the Ohio Valley on Sunday afternoon and will bring another shot of rain and some gusty winds to the Northeast by Monday. However, this storm is looking much less intense and impacts will be less widespread.Rain, snow head toward NorthwestA new storm is developing in the northern Pacific this weekend and will bring a shot of rain and some mountain snow to parts of the Northwest by Sunday.In the wake of this storm, the pattern will remain unsettled for several days in the Northwest with rounds of rain expected from Seattle to Portland. Through Wednesday, rainfall totals over 3 inches will be possible.Some of the higher elevations of the Cascades and northern Rockies could see some snow accumulation from the unsettled weather.Copyright © 2018, ABC Radio. All rights reserved.last_img read more

Marc Brownstein Launches Live Lesson Masters Instruction Program Ft. Members Of Umphrey’s McGee, STS9, JRAD, More

first_imgMarc Brownstein of The Disco Biscuits and Alicia Karlin of AEG Presents have announced a new venture called Live Lesson Masters, an online program designed to connect musicians, fans, and more during the COVID-19 pandemic.The pairing of the Disco Biscuits bassist and Vice President of Global Touring and Talent at AEG is the latest spark of entrepreneurial ingenuity to emerge from the crisis facing the live entertainment industry as the novel coronavirus spreads around the world. As a touring musician, Brownstein had his entire calendar cleared as gigs were canceled across the country and Karlin’s entire position has been put in jeopardy as there are no tours to manage nor talent to supervise.Related: Brian May Offers “Bohemian Rhapsody” Guitar Solo Tutorial Via Instagram Live [Watch] Brownstein, like many musicians, recently began teaching online music classes. Eventually, he encountered inherent problems with attempting to teach dozens of different people around the country of varying skill levels, all with different schedules.“We wanted to provide a seamless platform for musicians and instructors to interface directly with the people,” Brownstein said. “With the industry grinding to a halt, musicians across the country are eager to find new ways to connect with their fans. I have personally booked over 20 lessons with my fans in the first week of the quarantine, and immediately realized how exciting this opportunity could be for both the fans and my fellow musicians.”Karlin saw the potential in Brownstein’s idea to not only provide a service to fans and keep musicians afloat during uncertain times, but also as a way to foster a real connection between fans and bands at a time when the gap between the stage and the stands has never been further.“In a world where artists and fans are accustomed to using social media as the hub for their communities, Live Lesson Masters’ unique one-on-one offerings take the possibilities of connection much further,” Karlin said. “Right now, we are all feeling anxious about the current state of things. We hope Live Lesson Masters creates a space where engagement happens, and where people can use this time to further their own creative pursuits and leave their troubles at the door for a while.”Live Lesson Masters features classes from over 20 different instructors including all four members of The Disco Biscuits, as well as members of Umphrey’s McGee, Lotus, STS9, Trey Anastasio Band, Ghost Light, Joe Russo’s Almost Dead, and many more. The classes aren’t just limited to music either, as the service also offers courses in yoga and cooking. The organization is also committed to helping musicians affected by the spread of COVID-19, and has pledged to donate a portion of the proceeds to organizations that offer relief to musicians and touring personnel in need.The website allows users to schedule a lesson, ranging from 40–60 minutes, at the time of their choice with a given musician for a nominal fee. Some musicians have also included the option to just “chill”, rather than providing actual instruction, allowing fans to spend quality time with some of their favorite artists. This new service joins other recently-announced online instruction programs from bands including Lettuce and Snarky Puppy.Head to the Live Lesson Masters website for a complete list of course offerings, and see a full list of instructors below.Live Lesson Masters InstructorsAlana Rocklin          STS9Allen Aucoin            The Disco BiscuitsAndy Frasco            Andy Frasco & The U.N.Aree Khodai            Yoga – Arees ArmyAron Magner           The Disco BiscuitsBrendan Bayliss       Umphrey’s McGeeDanny Mayer           Eric Krasno Band / Star KitchenDavid Phipps           STS9Deb Brownstein       YogaHannah Muse          YogaHolly Bowling           Ghost LightJames Casey           Trey Anastasio BandJoel Cummins          Umphrey’s McGeeJon Barber               The Disco BiscuitsKam Franklin           The SuffersLindsay Lou             Lindsay LouMarc Brownstein      The Disco BiscuitsMelissa Harrison      ChefMike Greenfield        LotusRobert Randolph      Robert RandolphRobert Walter           The Greyboy AllstarsRyan Stasik              Umphrey’s McGeeTom Hamilton           Ghost Light / Joe Russo’s Almost DeadView Instructorslast_img read more

Vikings draft LSU wide receiver Justin Jefferson at No. 22

first_imgLast Updated: 24th April, 2020 11:03 IST Vikings Draft LSU Wide Receiver Justin Jefferson At No. 22 The Minnesota Vikings chose LSU wide receiver Justin Jefferson with the 22nd pick in the first round of the NFL draft, with another selection in the queue on Thursday night waiting at No. 25. Written By FOLLOW US First Published: 24th April, 2020 11:03 IST WATCH US LIVE The Minnesota Vikings chose LSU wide receiver Justin Jefferson with the 22nd pick in the first round of the NFL draft, with another selection in the queue on Thursday night waiting at No. 25.The 22nd pick came from Buffalo as part of theJefferson, a late bloomer who played primarily in the slot while helping Tigers quarterback Joe Burrow win the Heisman Trophy for the national champions, set the program record with 111 receptions as a junior in 2019. Jefferson will join Adam Thielen and Tajae Sharpe as the top down-field options for quarterback Kirk Cousins.The last time the Vikings made multiple picks in the first round was 2014, their first draft under coach Mike Zimmer when linebacker Anthony Barr was selected ninth and quarterback Teddy Bridgewater was taken at No. 32.This is the 10th draft for general manager Rick Spielman with full authority over the roster, his 14th overall with Minnesota. This will be a pivotal draft for Zimmer and Spielman, both of whom have entered the final year of their contract and yet to receive an extension. The Vikings have made the playoffs three of the last five seasons, but the 2017 team that reached the NFC championship game has so far been the pinnacle.The virus outbreak that shuttered all NFL facilities forced team officials to sequester in their homes for thiscenter_img SUBSCRIBE TO US Associated Press Television News LIVE TV COMMENTlast_img read more