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How the Nepal earthquake happened
The Wall Street Journal
A little before noon on April 25, in Nepal, a chunk of rock about 9 miles below the Earth's surface shifted, unleashing a shock wave — described as being as powerful as the explosion of more than 20 thermonuclear weapons — that ripped through the Katmandu Valley. In geological terms, the tremor occurred like clockwork, 81 years after the region's last earthquake of such a magnitude, in 1934. The reason is the regular movement of the fault line that runs along Nepal's southern border, where the Indian subcontinent collided with the Eurasia plate 40 million to 50 million years ago.
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Looking for similar articles? Search here, keyword: Seismology.




Chile's Calbuco volcano erupts for 1st time in more than 40 years
CNN
VideoBrief Chile's Calbuco volcano erupted twice in 24 hours, the country's National Geology and Mining Service said early April 23. About 23 1/2 inches (60 centimeters) of ash fell in some places, according to the Ministry of Interior and Public Safety. The eruption is a first for many in the region. The last major eruption was 1962. There was a minor eruption in 1972.
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Scientists discover massive new magma chamber under Yellowstone
NPR
There's more to Yellowstone National Park than meets the eye. Much more, as it turns out. You might already know that a supervolcano dominates the famous park that is situated on land in Wyoming and Montana. A shallow subsurface magma chamber has long been known. But now a second, much larger reservoir of partially molten rock has been discovered by researchers at the University of Utah. There's enough magma inside, they say, to fill the Grand Canyon more than 11 times.
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AIPG NEWS


Ohio 2015 Conference — Walk-ins welcome
AIPG
AIPG Conference on The Expanding World of Unconventional Shale Hydrocarbon Resources — The role of Hydraulic Fracturing in the Development of the Utica, Marcellus and other Devonian Shales of the Appalachian Basin with Ohio's Geology in Core and Outcrop Short Course and Field Trip. The conference is being held April 27-29, in Columbus, Ohio. Presentations are on April 28 and 29.
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AIPG Section Newsletters now online
AIPG
  • The AIPG California Section Newsletter — May 2015
  • The AIPG Ohio Section Newsletter — Spring 2015
  • The AIPG Nevada Section Newslettter — Spring 2015
  • The AIPG Texas Section Newsletter — April 2015
  • The AIPG Michigan Section Newsletter — April 2015
  • The AIPG Illinois-Indiana Section Newsletter — Spring 2015
  • The AIPG California Newsletter — Spring 2015
  • The AIPG Wisconsin Newsletter — Spring 2015

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    AIPG call for abstracts deadline extended to April 30 for 2015 Energy Exposition — Registration is open
    AIPG
    Join the American Institute of Professional Geologists at the 2015 Energy Exposition in Billings, Montana! Register online or fill out the registration form. Present and attend the technical sessions organized and hosted by AIPG on June 24th-25th with an optional field trip: Transect Across the Beartooth Mountains Front Laramide Triangle Zone: Dean, Montana to The Golf Course. Trip leader: Ennis Geraghty, Senior Project Geologist, Stillwater Mining Company on Friday, June 26. The schedule is structured to allow plenty of time to browse and participate in the Energy Exposition. Registration will include "Breakfast and a Movie" both days, lunch and reduced ticket pricing for the Expo dinner on June 25. Click here for additional information on the Energy Exposition. The technical session presentations will be held at the Rimrock Arena within the MetraPark Expo Center, 308 6th Avenue N., Billings, Montana. To have your abstract considered for a presentation please submit an abstract online by April 30. List of Presentations/Presenters.
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    AIPG call for abstracts — Alaska 2015 National Conference
    AIPG
    Join the American Institute of Professional Geologists at the 2015 Annual National Conference in Anchorage, Alaska! Present and attend the technical sessions on Sept. 21-22. The technical session presentations will be held at the Hilton Anchorage Hotel, 500 West Third Avenue, in Anchorage, Alaska. Contact the hotel at 1-800-HILTONS. The room rate is $137. To have your abstract considered for a presentation please submit an abstract online by May 4.
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    AIPG Student Chapter of the Year Award — Submittal deadline is June 30
    AIPG
    The purpose of the AIPG Student Chapter of the Year Award is to recognize the most outstanding student chapter for their participation in, and contribution to, the American Institute of Professional Geologists. The award will consist of a plaque to be presented to the student chapter, a certificate to each of the officers of the chapter at the time of their submittal, a $500 award for the chapter and a trip for one member of the winning student chapter to the annual AIPG conference and executive meetings. The student that attends the annual meeting will observe the organization and functions of AIPG and participate in the executive board meeting.
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    MARK YOUR CALENDAR

    Date Event More Information
    April 27-29 AIPG Energy & Shale in the Appalachian Basin Columbus, Ohio
    May 15-16 AIPG National Executive Committee Meeting Thornton, Colorado
    June 2-3 An Introduction to Surficial Geology in Massachusetts and the Geologic History of Cape Cod Bourne, Massachusetts
    June 16-17 5th Annual AIPG Michigan Section Technical Workshop — Site Characterization Roscommon County, Michigan
    June 24-25 2015 Energy Exposition with Technical Sessions Presented by AIPG Billings, Montana
    Sept. 19-22 AIPG 2015 National Conference, Anchorage, Alaska Hosted by AIPG National and co-hosted by AIPG Alaska Section
    Sept. 29-30 AIPG Georgia Section: "Innovative Environmental Assessment of Remediation Technology Kennesaw, Georgia
    Sept. 9-13, 2016 AIPG 2016 National Conference Santa Fe, New Mexico


    AIPG Section Leadership Award — Submittal deadline is May 31
    AIPG
    The AIPG Section Leadership Award was established by the Executive Committee in 2013 to recognize one or more of our members who have demonstrated a long-term commitment and have been long-term contributors to AIPG at the section level. AIPG has many sections where one or more individuals have demonstrated exceptional leadership for their section and in many instances kept the section together and moving forward. These individuals are commonly not known at the National level or by AIPG members outside of their sections, however, their contributions have been vital to their sections and they perform this work because of their commitment to our profession and AIPG. The award will consist of a plaque (or similar) that will be presented to the awardees at the banquet of the annual meeting of AIPG.
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    AIPG embroidered beanie cap
    AIPG
    A warm, stylish accessory constructed from 100 percent acrylic. This beanie comes in a variety of solid colors, or with a contrasting trim, embroidered with the AIPG logo. Available colors: gray, gray/black, black, black/natural, light pink/white, natural/navy, navy, navy/natural.


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    AIPG tall cafe mug
    AIPG
    This tall 16 oz. cobalt blue cafe mug has a glossy finished exterior with an easy to hold handle. It is safe in the microwave and features the AIPG logo in microwavable metallic gold.


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    INDUSTRY NEWS


    Nepal earthquake: Experts there a week ago to plan for earthquake
    The Associated Press via U.S. News & World Report
    VideoBrief Nepal's devastating earthquake was the disaster experts knew was coming. Just a week prior, about 50 earthquake and social scientists from around the world came to Kathmandu, Nepal, to figure out how to get this poor, congested, overdeveloped, shoddily built area to prepare better for the big one, a repeat of the 1934 temblor that leveled this city. They knew they were racing the clock, but they didn't know when what they feared would strike.
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    Oldest fossils might just be mineral look-alikes
    Ars Technica
    Researchers trying to study the earliest signs of life on Earth have a tall task. Not much of the rock that formed at the surface of the Earth over three billion years ago is around for us to examine today, and what's left has taken a tectonic beating over the eons. But it's in these rocks that we hope to find recognizable remains of single-celled organisms.
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    Japan gets bigger as land rises from the sea
    Sky News
    Japan has grown in size after a 300 meter-long strip of new coastline emerged from the sea, rising up to 10 meters high in some places. The emergence of the additional stretch of shoreline, revealing what used to be the sea floor, initially sparked fears a major earthquake was imminent, similar to the 9.0-magnitude seismic shock and tsunami of March 2011. But geologists believe the phenomenon was probably a result of a nearby landslide, caused by melting ice and snow, pivoting the submerged area of land into the air.
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    TRENDING ARTICLES
    Missed last week's issue? See which articles your colleagues read most.

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    Team discovers new factors impacting fate of sinking carbon
    Phys.org
    The ocean has been sucking up heat — trapping carbon dioxide (CO2) building up in our atmosphere — with a little help from tiny plankton. Like plants on land, these plankton convert CO2 into organic carbon via photosynthesis. But unlike land plants that are held fast to terra firma, plankton can sink into the deep ocean, carrying carbon with them. Along the way they decompose when bacteria convert their remains back into CO2.
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    Turns out satellites work great for mapping earthquakes
    WIRED
    The Nepal earthquake devastated the region and killed over 2,500 people, with more casualties mounting across four different countries. The first 24 hours of a disaster are the most important, and first-responders scramble to get as much information about the energy and geological effects of earthquakes as they can. Researchers at the University of Iowa and the U.S. Geological Survey have shown a faster way to use geodetic data to assess fault lines, turning over reports in as little as a day to help guide rapid responses to catastrophic quakes.
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    JPL scientists use new technology to measure California's grim snowpack
    KTLA-TV
    When California water officials announced earlier this month that the amount of snow in the Sierra Nevada was less than any measurement ever before recorded on that date in state history, it came as no surprise to a team of Jet Propulsion Laboratory scientists. They had been watching the diminishing snowpack every week for three seasons in a row — from the vantage point of a specially equipped plane flying above the vast mountain range.
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    New study uses meteorites to date moon-forming impact
    University of Hawaii
    Not too long after the planets began forming, a Mars-sized object slammed into Earth, creating the debris that would later coalesce into the moon. Some of the debris from this giant impact escaped all the way out to the asteroid belt. Collisions there left shock-heating signatures — a permanent record of the impact event — that can still be detected billions of years later in meteorites that have fallen to Earth.
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