Free Republic 1st Quarter Fundraising Target: $88,000 Receipts & Pledges to-date: $86,508
Woo hoo!! And we're now over 98%!! Less than $1.5k to go!! Thank you all very much!!

Keyword: seismic

Brevity: Headers | « Text »
  • A Mysterious Blob of Hot Rock Is Building Up Under America's Northeast

    12/18/2017 5:56:57 AM PST · by BenLurkin · 81 replies
    sciencealert ^ | 18 DEC 2017 | PETER DOCKRILL
    A vast mass of hot rock is welling up underneath Vermont and extending into other subterranean regions below New England, new research shows. Scientists used a network of thousands of seismic measurement devices in the largest geological study of its kind, detecting the enormous blob upwelling under Vermont, New Hampshire, and Massachusetts – and possibly elsewhere.
  • Earthquake!

    08/24/2014 3:22:53 AM PDT · by Axenolith · 18 replies
    me ^ | 3-23-2014 | Axenolith
    Pretty damn strong shake here in Lafayette, strong enough to wake me from sleep.
  • Hetchy Hetchy Water Tunnel in Danger of 'Catastrophic' Collapse ( San Francisco )

    08/13/2014 10:57:52 PM PDT · by george76 · 39 replies
    Breitbart .. San Francisco Chronicle, ^ | 13 Aug 2014 | William Bigelow
    a debate is emerging between the San Francisco Public Utilities Commission (PUC) and the Bay Area Water Supply and Conservation Agency over the potential disaster if the 89-year-old Mountain Tunnel, which supplies 2.6 million Bay Area homes and businesses with water, collapses. The PUC acknowledges that the tunnel does have a chance of "catastrophic collapse," which would require repairs costing $100 million or total replacement, costing up to $630 million. But the PUC’s 10-year-old 4.6 billion water system improvement program did not include the Mountain Tunnel in its plans. ... The risk right now is that the tunnel lining could...
  • Hetch Hetchy water tunnel in danger of 'catastrophic collapse'

    08/15/2014 3:24:38 AM PDT · by afraidfortherepublic · 19 replies
    SF Gate ^ | 8-15-14 | Marisa Lagos
    Mountain Tunnel, a key part of the Hetch Hetchy water system - which supplies 2.6 million Bay Area residences and businesses - is at risk of a "catastrophic collapse" and will cost more than $100 million to repair or up to $630 million to replace, according to the San Francisco Public Utilities Commission. City officials have known for 25 years that significant work is needed on the 19-mile-long tunnel just outside Yosemite National Park in a steep, hard-to-access wilderness area. They considered making it part of the PUC's decade-old, $4.6 billion water system improvement program, which is now more than...
  • Missing MH370: Seismic Activity Detected After Plane Went Off Radar

    03/14/2014 1:32:45 AM PDT · by nickcarraway · 21 replies
    Malaysia Star ^ | 3/14/2014 | Tho Xin Yi
    A research team from China's University of Science and Technology detected tremors in the sea near the Malaysia Vietnam border on March 8 hours after MH370 disappeared from the radar screen. In a report published on its website, the Wen Lianxing Research Team said it suspected the tremor to relate to the missing MAS plane because the area "is not within seismic zone." "The incident happened at 2.55am on March 8, about one-and-a-half hours after MH370 lost contact at 1.30am. "One of the two possible locations is (an area) about 116km to the northeast of MH370's last confirmed location," it...
  • New waves of seismic technology yield big oil finds (video at link)

    10/28/2013 5:17:00 AM PDT · by thackney · 13 replies
    Fuel Fix ^ | October 28, 2013 | Zain Shauk
    For decades, the giants of the oil industry were confounded by salt. While oil companies for years had shot sound waves into the deep to help create images of undersea geology, salt located far under the floor of the Gulf of Mexico was unpredictable. It muffled reflections, or bounced them away from survey vessels, leaving geophysicists in the dark. But that was before a series of recent seismic imaging breakthroughs involving supercomputers and the largest moving objects in the ocean. The advancements helped oil companies peek under salt layers located miles below the Gulf and have spurred a number of...
  • Earthquake

    08/23/2011 10:58:37 AM PDT · by Tolerance Sucks Rocks · 43 replies
    Mother Nature | August 23, 2011 | My bad self
    Did anybody feel that one, especially if you're in Maryland or Virginia?
  • Israel conducts massive controlled blast

    01/29/2011 10:27:03 PM PST · by ErnstStavroBlofeld · 39 replies
    UPI via SpaceWar ^ | 1/27/2011 | UPI via SpaceWar
    Israel conducted a massive controlled explosion to calibrate instruments at seismic monitoring stations worldwide, officials said. Using 100 tons of explosives, The Geophysical Institute of Israel conducted the explosion at a site in the Negev on Wednesday. It registered 2.7 on the Richter scale, and created a mushroom cloud that reached the height of up to 1.78 miles, or three kilometers, Haaretz reported Thursday. Local scientists and scientists from the U.S. and France as well as journalists observed the blast. Dr. Rami Hofstetter, head of seismology at the Geophysical Institute told the newspaper the experiment was important to study how...
  • GOP's Brown wins Mass. Senate seat in epic upset

    01/19/2010 6:29:59 PM PST · by NormsRevenge · 279 replies · 10,162+ views
    AP on Yahoo ^ | 1/19/10 | Glenn Johnson and Liz Sidoti - ap
    BOSTON – In an epic upset in liberal Massachusetts, Republican Scott Brown rode a wave of voter anger to defeat Democrat Martha Coakley in a U.S. Senate election Tuesday that left President Barack Obama's health care overhaul in doubt and marred the end of his first year in office. The loss by the once-favored Coakley for the seat that the late Sen. Edward M. Kennedy held for nearly half a century signaled big political problems for the president's party this fall when House, Senate and gubernatorial candidates are on the ballot nationwide.
  • N. Korea's 2nd nuclear test site pinpointed in new study

    01/10/2010 12:35:44 AM PST · by ErnstStavroBlofeld · 6 replies · 561+ views
    Yonhap News ^ | 1/10/2009 | Sam Kim
    Two U.S.-based scientists said Sunday they've located the site of North Korea's second nuclear test last year more precisely than ever before, pinpointing it just 2 kilometers off the place where the first test was conducted in 2006. Lianxing Wen, a geophysics professor at the State University of New York in Stony Brook, and his graduate student, Hui Long, located the epicenter of the second nuclear test on May 5 last year with a margin of error of only 140 meters, compared with 3.8 kilometers achieved by the U.S. Geological Survey. "We locate the 2009 test at 723 meters north...
  • Redoubt eruptions threaten airline routes (another Eruption)

    03/26/2009 12:31:02 PM PDT · by Species8472 · 60 replies · 4,129+ views
    Anchorage Daily News ^ | 3-26-09 | JULIA O'MALLEY
    Redoubt volcano erupted for the second time this morning with a huge explosion at 9:24 that sent a cloud of ash to 65,000 feet above sea level. It looks like the plume is going to drift kind of over Prince William Sound and then into the Copper River, Cordova area, and then into the Panhandle," said Alaska Volcano Observatory geologist Chris Waythomas in Anchorage. "It could cause some real serious issues for aviation throughout the day, and I wouldn't be surprised if some flights are going to be canceled here," he said. Alaska Airlines officials said they are still evaluating...
  • 5.2 quake 66 miles from Anchorage - no reports yet

    11/28/2007 4:40:15 PM PST · by eldoradude · 35 replies · 220+ views
    Magnitude 5.2 Date-Time Wednesday, November 28, 2007 at 23:57:03 UTC Wednesday, November 28, 2007 at 02:57:03 PM at epicenter Location 61.918°N, 151.067°W Depth 61 km (37.9 miles) set by location program Region SOUTHERN ALASKA Distances 11 km (7 miles) ENE (68°) from Skwentna, AK 48 km (30 miles) NNW (327°) from Susitna, AK 54 km (33 miles) SSW (198°) from Petersville, AK 106 km (66 miles) NW (320°) from Anchorage, AK Location Uncertainty horizontal +/- 0.2 km (0.1 miles); depth fixed by location program Parameters Nst=094, Nph=093, Dmin=25.1 km, Rmss=0.85 sec, Gp= 36°, M-type=local magnitude (ML), Version=6 Source Alaska Earthquake...
  • Vanity: Question about Seismic activity

    10/01/2007 5:22:14 PM PDT · by Blogger · 47 replies · 211+ views
    self | 1 Oct 2007 | Blogger
    Posted this question on another thread but had very little response. As I look at the ring of fire right now, there is a massive amount of activity, BIG activity in the Pacific ocean towards Asia. There is also a lot of activity in South America and a little in Central America. The only thing on my chart on the west coast that registered at 4.0 or above was a small quake in Oregon. Question is, with all of these plates shifting, and the plates around our nation's plates staying pretty quiet, what is this doing to our risks of...
  • Los Angeles Enjoying 1,000 Year Seismic Lull

    08/27/2007 3:51:00 PM PDT · by blam · 20 replies · 565+ views
    Science Daily ^ | 8-27-2007 | University of Southern California
    Source: University of Southern California Date: August 27, 2007 Los Angeles Enjoying 1,000 Year Seismic Lull Science Daily — The Los Angeles basin appears to be in a seismic "lull" characterized by relatively smaller and infrequent earthquakes, according to a study in the September issue of Geology. By contrast, the Mojave Desert is in a seismically active period. Seismic activity alternates between the two regions, the study suggests. The lull in the Los Angeles basin began 1,000 years ago, said the authors, led by James Dolan, associate professor of earth sciences at the University of Southern California. "The past 1,000...

    12/17/2006 10:04:11 PM PST · by Westlander · 10 replies · 681+ views
    AKI ^ | Dec-15-06 | Rak/Aki
    According to the experts of the project, which began in 1992 involving the top global seismology institutes, half of Iran's territory is at "seismic risk" and the other half is at "elevated seismic risk".
  • Researchers Complete Seismic Borehole In Kentucky (New Madrid Seismic Zone)

    12/15/2006 5:27:29 PM PST · by blam · 101 replies · 1,595+ views
    Science Daily ^ | 12-14-2006 | University Of Kentucky
    Source: University of Kentucky Date: December 14, 2006 Researchers Complete Seismic Borehole In Kentucky Drilling has been completed on the deepest borehole for seismic instruments in the eastern U.S. The four-inch diameter hole for the Central U.S. Seismic Observatory (CUSSO), located at Sassafras Ridge in Fulton County, Kentucky, reached a depth of 1,948 feet, where bedrock was encountered. The location is near the most active part of the New Madrid Seismic Zone, the source of at least three major earthquakes in the winter of 1811-12, before the region was heavily populated and developed. This location will allow instruments in the...
  • Volcanoes may reveal secrets through 'song'

    08/16/2006 7:33:42 PM PDT · by annie laurie · 10 replies · 304+ views
    NewScientist ^ | 10 August 2006 | Kurt Kleiner
    Active volcanoes are being made to "sing" by researchers who convert seismic data into frequencies audible to human ears. Although the volcanoes are unlikely to sell many records, the technique could make it easier to detect patterns that warn of an eruption. High-powered computers are being used to convert seismic readings from Mount Etna in Sicily and Tungurahua in Ecuador into audible rumbles, roars, beeps, and even piano music. The technique, known as "sonification", is used to help people detect patterns in complex data. Research has shown that people find it easier to detect patterns audibly rather than visually. While...
  • CA: 3D Geologic and Seismic Velocity Model of the San Francisco Bay Region - USGS

    10/14/2005 12:09:20 PM PDT · by NormsRevenge · 9 replies · 1,079+ views
    USGS ^ | 10/14/05 | USGS
    The USGS is releasing a new tool to help mitigate loss of life and property - a 3D computer model of the upper 20 miles of the Earth's crust in the greater San Francisco Bay Area that will enable researchers to accurately predict the shaking levels of past and future earthquakes. Previous work by the USGS and others has shown that the 3D structure of the Earth has a significant impact on how strongly an earthquake is felt at different locations and on the duration of the shaking. Because seismic waves propagate through different rock types with differing speeds that...
  • Sonic Boom Registering near Tampa, Florida registers on Seismic Network

    03/11/2005 8:57:43 PM PST · by Strategerist · 1,040+ views
    SONIC BOOM NR TAMPA, FLORIDA Saturday, March 12, 2005 at 00:41:55 UTC Preliminary Earthquake Report U.S. Geological Survey, National Earthquake Information Center World Data Center for Seismology, Denver Magnitude 0.0 Date-Time Saturday, March 12, 2005 at 00:41:55 (UTC) - Coordinated Universal Time Friday, March 11, 2005 at 07:41:55 PM local time at epicenter Time of Earthquake in other Time Zones Location 27.95N 82.46W Depth 5.0 kilometers Region SONIC BOOM NR TAMPA, FLORIDA Reference NEAR Tampa, Florida 30 km (20 miles) NE of St. Petersburg, Florida 330 km (205 miles) SSE of TALLAHASSEE, Florida 330 km (205 miles) NW of Miami,...
  • CA: Bridge plan gets voters involved (digging deep into future with a large seismic bond)

    02/24/2005 8:54:43 AM PST · by NormsRevenge · 13 replies · 332+ views
    Oakland Tribune ^ | 2/24/05 | Steve Geissinger
    SACRAMENTO — State Senate leader Don Perata officially unveiled legislation Wednesday to fund huge Bay Bridge cost overruns and other seismic-retrofit needs throughout the state with a multibillion-dollar bond that would go to voters. Gov. Arnold Schwarzenegger has indicated he would consider Perata's Essential Facilities Seismic Retrofit Bond. Both developments, foreshadowed by the Oakland Tribune last month, could lead to the bond's being placed on the expected November special election ballot. But at the same time, the Republican governor has told the Democratic Senate president pro tem from Oakland that he is still interested in replacing the single-tower suspension span...