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Topic: Loma Prieta


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  LOMA PRIETA EARTHQUAKE, OCTOBER 17, 1989 Santa Cruz County, California
In this case Loma Prieta peak, the highest peak in the Santa Cruz Mountains, is several miles from the earthquake epicenter.
The occurrence of the Loma Prieta earthquake in the forecast area and with the size within a half magnitude unit of the forecast size has essentially served to validate the approach used to develop the probability estimates.
The section of fault that ruptured during the Loma Prieta earthquake compared with the area of fault that ruptured during the 1906 San Francisco earthquake is shown on Figure 5.
www.johnmartin.com /earthquakes/eqpapers/00000079.htm   (2240 words)

  
 Loma Prieta earthquake - Wikipedia, the free encyclopedia
The Loma Prieta earthquake occurred on October 17, 1989 in the greater San Francisco Bay Area in California at 5:04 pm local time and measured 7.1 on the Richter magnitude scale (6.9 on the Moment magnitude scale).
Its epicenter was at geographical coordinates 37.04° N 121.88° W near Loma Prieta Peak in the Santa Cruz Mountains, about ten miles (16 km) northeast of the city of Santa Cruz, California, in the Forest of Nisene Marks State Park.
The Loma Prieta earthquake irrevocably changed the San Francisco Bay Area's transportation landscape.
en.wikipedia.org /wiki/Loma_Prieta_earthquake   (1386 words)

  
 Looking Back at the Loma Prieta earthquake
Loma Prieta Earthquake Anniversary Edition The Santa Cruz County Sentinel published a nice review of the earthquake and its aftermath in the city and county of Santa Cruz.
At the time of the Loma Prieta earthquake, all earthquake analysis was performed "by hand", i.e., a seismologist was required to locate and determine the magnitude of an event.
At the time of the Loma Prieta earthquake ten years ago it was possible to investigate the nature of the Earth's crust through the interrogation and modeling of recorded seismic waves, however those studies were mostly limited to 1D models of the Earth's structure.
seismo.berkeley.edu /seismo/faq/loma_prieta_10ya.html   (5957 words)

  
 Housing Repair and Reconstruction After Loma Prieta
The final section reviews the cost and effectiveness of the overall assistance provided in the aftermath of the Loma Prieta earthquake and discusses the lessons which can be learned to improve housing recovery in future disasters.
The Loma Prieta earthquake exposed the lack of specific programs targeted for the repair and reconstruction of multi-family and affordable housing.
Although California is rightfully proud of its planning and readiness for emergency response in the event of a disaster, Loma Prieta has taught a valuable lesson in exposing the gaps in housing recovery and provides a road map for thinking about recovery planning.
nisee.berkeley.edu /loma_prieta/comerio.html   (4913 words)

  
 Earthquake Museum-1989 Loma Prieta Earthquake
The Loma Prieta Earthquake struck at 5:04 PM, October 17, 1989.
The epicenter was located in the Santa Cruz mountains, near Loma Prieta peak, about 70 miles south of San Francisco.
The San Francisco Museum exhibit on the Loma Prieta quake.
www.olympus.net /personal/gofamily/quake/famous/prieta.html   (501 words)

  
 1989 Loma Prieta OFR 90-503
The Loma Prieta dataset is summarized in Figures 1 through 9 and Tables 1 through 7.
Figure 1 shows all instrument locations and an estimate of the Loma Prieta main-shock rupture area superimposed on a map of central California.
During initial processing, probable seismic events (aftershocks, earthquakes unrelated to Loma Prieta, quarry blasts, etc.) are identified by a computer algorithm that finds multiple triggers in a sliding time window; the window duration is selected just long enough to include all plausible triggers from an event (accounting roughly for traveltimes).
nsmp.wr.usgs.gov /GEOS/LPE/OFR_90-503/Loma_Prieta.html   (2452 words)

  
 Gay and Lesbian Sierrans (GLS), Loma Prieta Chapter - South Bay Area Hiking and Outdoor Adventures
Loma Prieta GLS was third, becoming an official activity section in 1991.
GLS operates under bylaws approved by the Loma Prieta Chapter of the Sierra Club.
Matters such as establishing the outing calendar, certifying outing leaders, publishing the newsletter, and managing the finances, are entrusted to the Governing Committee, which is elected at the end of each year.
lomaprieta.sierraclub.org /gls   (279 words)

  
 Progress Toward a Safer Future Since the 1989 Loma Prieta Earthquake   (Site not responding. Last check: 2007-10-21)
Although the Loma Prieta earthquake struck on the periphery of the region–more than 50 miles from San Francisco and Oakland–it exposed the vulnerability of the region to enormous losses in future quakes, some of which will be larger and closer to its urban core.
During the Loma Prieta earthquake, the USGS and CDMG obtained the first set of recordings of damaging levels of shaking on a wide variety of geologic materials, including soft, unconsolidated sand and clay.
The Loma Prieta earthquake was a painful reminder of the need to be aware of natural hazards and to take steps to minimize the potential impact of threatening events.
pubs.usgs.gov /fs/1999/fs151-99   (3052 words)

  
 Loma Prieta earthquake -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-21)
Loma Prieta earthquake -- Facts, Info, and Encyclopedia article
Private donations poured in to aid relief efforts and on October 26, (Vice President under Reagan and 41st President of the United States (born in 1924)) President Bush signed a $3.45 billion earthquake relief package for California.
Not only did the quake force the (Click link for more info and facts about seismic retrofit) seismic retrofit of all the bridges around the (A bay of the Pacific in western California) San Francisco Bay, it caused enough damage that some parts of the region's freeway system had to be demolished.
www.absoluteastronomy.com /encyclopedia/l/lo/loma_prieta_earthquake.htm   (1297 words)

  
 Encyclopedia: Loma Prieta earthquake
Jump to: navigation, search October 17 is the 290th (in leap years the 291st) day of the year according to the Gregorian calendar.
The fireboat Guardian was a gift of survivors of the Loma Prieta earthquake to supplement San Franciscos fireboat Phoenix.
Deaths in Santa Cruz occurred when brick storefronts and sidewalls in the historic downtown (what was then called the Pacific Garden Mall) tumbled down on people exiting the buildings.
www.nationmaster.com /encyclopedia/Loma-Prieta-earthquake   (2995 words)

  
 Loma Prieta Amateur Radio Club History - recorded by Charlie Norman (AB6VS)
And, even though Loma Prieta mountain escaped relatively unharmed (although seismologists say it is now four feet higher that it was before the quake), it became the namesake of that fateful 7.2 shaker that will be forever be known as the Loma Prieta Earthquake of 1989.
Loma Prieta is the most prominent physical feature in the Santa Cruz Mountains that ring Monterey Bay -- running in a general north-south direction -- so it is understandable that the name is tagged to many locations, organizations, clubs, schools and streets in the area.
The Loma Prieta Amateur Radio Club (LPARC) is one such entity and it was formed after that terrible shake, partly, because the need for reliable communication became clear when public utilities ceased to function.
www.accesscom.com /~ziegler/lphistory.html   (885 words)

  
 BSL FAQ: 1989 Earthquake
The 1989 Loma Prieta earthquake occured on October 18, 1989 at 00:04 UTC in the Santa Cruz Mountains of Central California.
The Loma Prieta earthquake ruptured the southernmost 40 km of the 1906 break, in comparable amounts of right-lateral strike slip and reverse slip motion.
At the time of the Loma Prieta earthquake, the Berkeley Seismological Laboratory operated a small network of 16-bit digital seismometers.
www.seismo.berkeley.edu /seismo/faq/1989_0.html   (572 words)

  
 Loma Prieta Amateur Radio Club - weekly net Tuesdays at 7:15 PM, 440.550+ PL 94.8   (Site not responding. Last check: 2007-10-21)
The club is "located" around Loma Prieta, the highest point in the Santa Cruz mountains (halfway between the California cities of San Jose and Santa Cruz).
Here is a picture (7K JPEG) of the top of Loma Prieta (elevation 3791 feet) as viewed from the Loma Prieta ARC repeater site.
The Loma Prieta ARC repeater is located in the Santa Cruz mountains near Loma Prieta.
www.accesscom.com /~ziegler/lparc.html   (452 words)

  
 ipedia.com: Loma Prieta earthquake Article   (Site not responding. Last check: 2007-10-21)
The Loma Prieta earthquake occurred on October 17, 1989 in the greater San Francisco Bay Area in California at 5:04 pm local time and measured 7.1 on the Richter scale.
Its epicenter was at 37.04° N latitude, 121.88° W longitude near Loma Prieta Peak in the Santa Cruz Mountains, about seven miles northeast of the town of Santa Cruz, California, in the Forest of Nisene Marks State Park.
This was a major earthquake which caused severe damage as far as 70 miles away - most notably in San Francisco, Oakland, and the San Francisco Peninsula.
www.ipedia.com /loma_prieta_earthquake.html   (681 words)

  
 Nat' Academies Press, Practical Lessons from the Loma Prieta Earthquake (1994)
Practical Lessons from the Loma Prieta Earthquake: Report from a Symposium Sponsored by the Geotechnical Board and the Board on Natural Disasters of the National Research Council Society of America.
Practical Lessons from the Loma Prieta Earthquake: Report from a Symposium Sponsored by the Geotechnical Board and the Board on Natural Disasters of the National Research Council Robin K. McGuire is President of Risk Engineering, Inc. His areas of expertise include earthquake engineering, risk analysis, decision analysis, and geostatistics.
Practical Lessons from the Loma Prieta Earthquake: Report from a Symposium Sponsored by the Geotechnical Board and the Board on Natural Disasters of the National Research Council This page in the original is blank.
www.nap.edu /books/0309050308/html/271.html   (1658 words)

  
 1906 San Francisco Earthquake - Compared to Loma Prieta
One great value of old seismograms is that we can make quantitative comparisons of 1906 with the 1989 Loma Prieta earthquake.
We expect that the shaking in the next 1906-type earthquake will probably not be much more intense than the shaking felt in 1989 near the epicenter of the Loma Prieta earthquake, but it will last longer -- perhaps 45 to 60 seconds or more.
In a repeat of the 1906 earthquake, the region experiencing intense shaking will also be much more widespread than in the Loma Prieta event, affecting areas all along the rupture.
www.sfmuseum.org /1906/usgs.html   (225 words)

  
 Quake Country
Images from the San Francisco Bay Area's 1989 Loma Prieta Earthquake and other temblors across the state, as seen by the news staff of the San Francisco Chronicle.
In the Santa Cruz mountains, a building slid from its foundation and down a hillside during the 1989 Loma Prieta earthquake.
An older house in Watsonville was badly damaged by the 1989 Loma Prieta earthquake.
www.sfgate.com /chronicle/special/quakes/images   (398 words)

  
 Nat' Academies Press, Practical Lessons from the Loma Prieta Earthquake (1994)
Practical Lessons from the Loma Prieta Earthquake: Report from a Symposium Sponsored by the Geotechnical Board and the Board on Natural Disasters of the National Research Council Matt Arabasz University of Utah 705 W C Browning Bldg.
Practical Lessons from the Loma Prieta Earthquake: Report from a Symposium Sponsored by the Geotechnical Board and the Board on Natural Disasters of the National Research Council Richard McCarthy Seismic Safety Commission 1900 K Street, #100 Sacramento.
Practical Lessons from the Loma Prieta Earthquake: Report from a Symposium Sponsored by the Geotechnical Board and the Board on Natural Disasters of the National Research Council Robert J. Swain OYO Geospace Corp. 35 N Lake Ave.
www.nap.edu /books/0309050308/html/249.html   (924 words)

  
 15 years after Loma Prieta earthquake, tardy temblor yields trove of data
During the 1989 Loma Prieta earthquake, bookshelves in the Stanford libraries toppled like dominoes.
Sunday, Oct. 17, will mark the 15th anniversary of the Loma Prieta earthquake, a magnitude 6.9 temblor that killed 63 people in Northern California and resulted in more than $6 billion in property loss.
"The takeaway message from Loma Prieta is that it was a very damaging earthquake that wasn't within the main population center of the Bay Area," says Mark Zoback, professor of geophysics.
news-service.stanford.edu /news/2004/october13/Quakes-1013.html   (765 words)

  
 Measure K: Repair and Improvement of Schools - Santa Clara County, CA
The Board of Trustees of the Loma Prieta Joint Union Elementary School District has ordered an election on whether bonds shall be issued and sold in the aggregate principal amount not to exceed $4,965,000 to construct, acquire, repair and equip classrooms, libraries, improve safety of school facilities.
An Election will be held in Loma Prieta Joint Union Elementary School (the "District") of Santa Clara and Santa Cruz Counties on March 5, 2002 for the purpose of authorizing the sale of $4,965,000 in general obligation bonds.
The Board of Trustees of the Loma Prieta Joint Union Elementary School District has evaluated safety, class size reduction, and information technology needs in developing the scope of school facilities projects to be funded.
www.smartvoter.org /2002/03/05/ca/scl/meas/K   (2011 words)

  
 15 SECONDS THAT CHANGED SAN FRANCISCO / The sweeping makeover that transformed the city began 15 years ago today with ...
Also debuting in 2005 is an expanded and architecturally provocative de Young Museum -- one of half a dozen major cultural institutions that have reinvented themselves since Loma Prieta, in the process catapulting San Francisco into the upper ranks of the nation's artistic centers.
But because of Loma Prieta, large-scale changes happened -- and the city is better as a result.
Five months after Loma Prieta, he made his decision -- declaring that the city would squander "the opportunity of a lifetime" if it let the Embarcadero Freeway remain.
www.sfgate.com /cgi-bin/article.cgi?file=/chronicle/archive/2004/10/17/MNCITY1.DTL   (2584 words)

  
 Savage Earth: Restless Planet
This happens when loose, moist soil or sand is shaken so hard that individual grains separate, turning the earth into a soft, fluid slurry that can swallow entire buildings.
And ground motions in regions of soft sediment are drastically amplified relative to surrounding areas, so that much greater earthquake damage results, such as that in the Marina District of San Francisco following the 1906 and Loma Prieta (1989) earthquakes.
The port zone of Kobe, Japan, was also damaged severely by liquefaction during the 1995 earthquake.
www.pbs.org /wnet/savageearth/earthquakes/index.html   (1193 words)

  
 Loma Prieta - Wikipedia, the free encyclopedia
For the 1989 earthquake that affected the San Francisco Bay and Monterey Bay regions, see Loma Prieta earthquake.
Loma Prieta is a Northern California mountain with elevation 3791 feet and located at approximately 37.114° N, 121.846 W. The peak is located about 11 miles west of Morgan Hill and within the boundaries of Santa Clara County.
This page was last modified 16:16, 1 October 2005.
en.wikipedia.org /wiki/Loma_Prieta   (82 words)

  
 Earth Science resources: The Loma Prieta earthquake of 1989   (Site not responding. Last check: 2007-10-21)
As thousands of San Francisco residents made their way home from work at 5:04pm on October 17th 1989, a magnitude 7.1 earthquake hit the region, centred on Loma Prieta in the Santa Cruz mountains.
The Loma Prieta earthquake was not massive - but left 63 people dead and injured 13,757.
The estimated cost of the 1989 Loma Prieta earthquake was more than $5.9 billion.
www.stvincent.ac.uk /Resources/EarthSci/Tectonics/cons1989.html   (347 words)

  
 Term Paper on Understanding the Loma Prieta Earthquake
Understanding the Loma Prieta Earthquake: 10 Years Later At 5:04 PM on October 17, 1989, the San Francisco Bay Area was severely shaken for 15 seconds by the Loma Prieta earthquake located to the south on the San Andreas fault near Santa Cruz.
Although the quake did not tear the ground surface, it collapsed some buildings and freeway overpasses built upon the soft “bayfill” sediment in San Francisco and Oakland.
…The occurrence of the Loma Prieta earthquake in the forecast area has served to validate the approach used to develop the probability estimates.
www.swiftpapers.com /essay/Understanding_the_Loma_Prieta_-94271.html   (192 words)

  
 The San Andreas fault and the Bay Area   (Site not responding. Last check: 2007-10-21)
Loma Prieta (located HERE) became famous as the spot near where the October 17, 1989 "World Series" earthquake rupture began.
The Loma Prieta earthquake rupture spread both North and South from the epicenter, filling most of the previously noted gap, but stopped well short of reaching Black Mountain.
Ward, P. L., and Page, R. A.: The Loma Prieta Earthquake of October 17, 1989; what happened, what is expected, and what can be done.
sepwww.stanford.edu /oldsep/joe/fault_images/BayAreaSanAndreasFault.html   (1639 words)

  
 Tuning in to Earthquake Warnings, Alaska Science Forum
That earthquake's source, the San Andreas fault, is one of the most studied geological features in the world.
Geophysicists had placed an array of them in boreholes along the fault; the devices are so sensitive that they can measure deformation to an accuracy of one part in 100 billion.
One instrumented borehole lay only 35 kilometers from the epicenter of the Loma Prieta quake, just 10 kilometers beyond the southern tip of the eventual rupture on the fault.
www.gi.alaska.edu /ScienceForum/ASF9/992.html   (720 words)

  
 [No title]
On October 17, 1989, the Santa Cruz Mountains segment of the San Andreas fault ruptured with the powerful Loma Prieta M7.1 earthquake.
The Chittenden earthquake was probably an aftershock to the Loma Prieta quake, but today's tremor was centered too far south to be considered an aftershock to the Loma Prieta earthquake.
Moreover, the Loma Prieta aftershock died off a few years ago.
www.seismo-watch.com /EQS/AB/98/970812-197.NCA5.4.html   (712 words)

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