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Earthquake Measurement:     more books (100)

The development of the Seafloor Earthquake Measurement System by David E Ryerson, 1978 Concerning the perceptibility of weak earthquakes and their dynamical measurement by Harry O Wood, 1914 Earthquake measurement at Miyako, by Fusakichi Omori, 1899 Seismic Source Signature Estimation and Measurement (Geophysics Reprint Series) In situ measurements of damping ratio using surface waves by Glenn J Rix, 1996 A study on the duration of strong earthquake ground motion by Mihailo D Trifunac, 1976 Micropulsation measurements during the Puget Sound earthquake of April 29, 1965 by James F Kenney, 1966 Simple models for the estimation and measurement of frictional heating by an earthquake (Open-file report / United States Department of the Interior, Geological Survey) by Arthur H Lachenbruch, 1986 Source and path effects for northeastern U.S. earthquakes: Implications for earthquake hazards : final report to the U.S. Geological Survey by M. N Toksöz, 1987 Study of ground motions at soil sites during two California earthquakes: Final report (Miscellaneous paper - U.S. Army Engineer Waterways Experiment Station) by Ricardo Dobry, 1979 A study of the engineering characteristics of the 1971 San Fernando earthquake records using time domain techniques by William Bond, 1980 Crustal deformation measurements in Alaska seismic gap: Yakataga and the Shumagin Islands : final technical report by R Bilham, 1984 Earthquake hazards in the New York City region: Deployment of a portable network of digitally recording seismographs : final technical report by A. L Kafka, 1983 Seismic velocities and geological conditions at twelve sites subjected to strong ground motion in the 1994 Northridge, California, earthquake (SuDoc I 19.76:96-740) by James F. Gibbs, 1996

lists with details

21. StudyWeb MathematicsWeights MeasurementEarthquake Measurement
    Background Briefing Earthquake Richter Scale Gives step by step info on how to measure an earthquake with the Richter Scale.  
    http://seismo.um.ac.ir/education/StudyWeb MathematicsWeights & MeasurementEa

22. 227 Earthquake Measurement Lesson Plans Reviewed By Teachers
    Search earthquake measurement lesson plans to find teacher approved lesson plans. Quickly find lesson plans that inspire student learning.  
    http://www.lessonplanet.com/search?keywords=earthquake measurement&media=les

23. Earthquake Magnitude
    EARTHQUAKE MAGNITUDE SCALES Richter Magnitude Charles F. Richter introduced the Richter scale in 1935. The Richter magnitude is denoted as ML. It is also called the local magnitude.  
    http://www.vibrationdata.com/earthquakes/magnitude.html
    
    Extractions: 2. The distance from the focus to the seismograph For example, a 23 millimeter displacement measured at a station 210 kilometers from the focus would have a value of ML = 5.0. A maximum displacement of 2.3 millimeters at this same station and distance would correspond to ML = 4.0. Finally, note that the displacement indicated on the Wood-Anderson seismograph is proportional to, but not equal to, the ground displacement. The sensitivity of the Wood-Anderson instrument must be known in order to calculate the true ground displacement. A typical amplification factor is 2080. The ground displacement is thus much smaller than the displacement indicated on the seismograph.

24. Earthquake Measurement : Abstract : Nature
    Nature is the international weekly journal of science a magazine style journal that publishes fulllength research papers in all disciplines of science, as well as News and Views  
    http://www.nature.com/nature/journal/v31/n784/abs/031004b0.html
    
    Extractions: Login Search this journal all of nature.com Advanced search Journal home Archive Letters to Editor Abstract nature doi J. A. EWING Top of page IN an article on “Earthquakes” in last week's NATURE (p. 608), Dr. H. J. Johnston-Lavis takes exception to the records of earthquake motion which I have published, on the ground of their complexity, and pronounces the Plain of Yedo unsuitable for earthquake observations. Top of page Current issue ... News Specials Previous Next Scientific Director, PERFORM Centre

25. Totally Cats: The Cat As Earthquake Measurement Device
    We had a minor (4.3) quake this morning, around 522 AM. The event was about 20 miles from the house, according to the USGS report that showed up in my emailbox a few minutes  
    http://totallycats.blogspot.com/2007/10/cat-as-earthquake-measurement-device.htm
    
    Extractions: California has had its share of natural and manmade disasters over the past few days. At this writing, our home turf is not in danger. We're keeping The Cat away from the tv set, though. She does tend to blow things out of proportion, and she'd probably figure out how to dial 9-1-1 whilst laboring under the delusion that the garage is ablaze.

26. Pioneers Of Earthquake Measurement: Giuseppe Mercalli | Earthquakes Today
    Most of us know practically nothing about the way earthquakes are measured. We have this mental image of weird little guys in lab coats scrutinizing mysterious  
    http://earthquakes-today.com/earthquakes/earthquake-measurement/
    
    Extractions: Skip to content Skip to content Posted on September 8, 2010 by admin Of course, the number While there are various scales used by scientists to study earthquakes, there are two that have held a prominent place in our culture for some time, contributing much to our understanding of these phenomena called earthquakes. While neither of these scales is still used in its original form, modernized versions of them underlie our basic understanding of earthquakes and the way we talk about them. These two scales are the Mercalli Scale and the Richter Scale. When discussing the modern science of earthquake measurement, a good place to start is Giuseppe Mercalli. Here was an interesting character, a Roman Catholic priest who got thrown out of the Natural Sciences department at the Milan Seminary because he openly voiced his liberal political views, only to rise to prominence again and become the director of the Vesuvius Observatory. Unfortunately, the purpose of this article is not biography, and we are only interested in Mercalli because of his crucial contribution to the field of earthquake science. I. Very mild movement, only detectable by instruments.

27. Magnitude 9.1 - OFF THE WEST COAST OF NORTHERN SUMATRA
    USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards  
    http://earthquake.usgs.gov/eqinthenews/2004/usslav/

28. Earthquakes - Energy
    Earthquake Measurement. Geologists use seismographs to measure earthquake waves, and use the Mercalli and Richter scales to report the relative size of earthquakes.  
    http://www.iupui.edu/~g107cwt/10_earthquakes/energy/04.html
    
    Extractions: skip to the content by IUPUI Department of Earth Sciences Geologists use seismographs to measure earthquake waves, and use the Mercalli and Richter scales to report the relative size of earthquakes. Your textbook describes how these two scales function. Richter is based on analytical measurements, while Mercalli is based on historical and eyewitness accounts of shaking and damage. An example of a seismograph recording the arrival of P-, S-, and R/L- waves from an earthquake. (Pearson/Prentice Hall) how seismographs work Sensitive seismographs can record earthquakes 1000s of miles away. Geologists use a method called triangulation to find the epicenter of earthquakes using seismographs. Using three seismograph stations, geologists can use the arrival time of the P- and S-waves to find the exact location of the epicenter Richter Scale : Based on measurements from seismographs, these are always used in modern earthquakes. Reported as a magnitude (example: Magnitude 5 or M5 earthquake). The measurement is based on the largest amplitude(size) seismic wave measured for that earthquake.

29. Caltech Earthquake Engineering Research Laboratory Technical Reports - Strong-mo
    This paper presents results of a study of some of the characteristics of the Kinemetrics PDR1 digital strong-motion accelerograph. The paper gives the results of laboratory  
    http://caltecheerl.library.caltech.edu/157/
    
    Extractions: Caltech Earthquake Engineering Research Laboratory Technical Reports Main About Browse Search ... Help Iwan, Wilfred D. and Moser, Michael Anthony and Peng, Chia-Yen Strong-motion earthquake measurement using a digital accelerograph. Technical Report CaltechEERL:1984.EERL-84-02 California Institute of Technology Full text available as: PDF Adobe PDF (3 MB) - Requires Adobe Acrobat Reader or other PDF viewer. This paper presents results of a study of some of the characteristics of the Kinemetrics PDR-1 digital strong-motion accelerograph. The paper gives the results of laboratory tests of the background noise level of the instrument and compares these results with previously reported observations for optical instruments. The determination of displacement from acceleration data is discussed and results of laboratory tests are presented. Certain instrument anomalies are identified, data correction algorithms proposed, and examples given. The paper also presents the results of a comparison of earthquake records obtained from side-by-side digital and optical analog instruments. Finally, some results obtained from a recent Chinese earthquake are discussed. EPrint Type: Monograph (Technical Report) Additional Information: PB-91-170191/AS Subjects: All Records Earthquake Engineering Research Laboratory ID Code: Deposited By: Jim O'Donnell Deposited On: 19 February 2008 Record Number: CaltechEERL:1984.EERL-84-02

30. Earthquake Measurement Online - Sky’s Blog
    This is more fun than any sporting event. The US Geological Survey long ago automated their earthquake reporting instruments and it has become somewhat of a sport to see how  
    http://blog.red7.com/earthquake-measurement-online/
    
    Extractions: Spreading the word in a networked world by Sky on Mar.30, 2009, under Entertainment and Places The Quantified Self Read more about what the USGS has available online for earthquake reporting. Here’s what the event looked like on the seismograph at Stanford Telescope in the hills west of Stanford University ( click this for full original recording of this quake Then a map is assembled (again, by computers) showing (with color) the intensity as felt by those who reported the quake. The map shows zip code area outlines and colors them to represent the reported intensity. ( Click the map to see an original .) If you look at the map for this particular quake you’ll see that the shock was felt mostly northwest and southeast along the major fault lines in our area. A friend in Santa Cruz on the coast reported to me that he didn’t feel the quake at all. In case you non-Californians are wondering, a quake this size may not even make the TV news. It’s strong enough to be felt, but causes no damage. They occur maybe several times a month if you consider the state as a whole. As I was out hiking yesterday I was thinking it has been just about 20 years now since the Loma Prieta quake of 1989. We have a quake that you can feel maybe once or twice a year, but so far nothing even alarming for 20 years.

31. Earthquakes In Japan
    Earthquake measurement. The Japanese shindo scale for measuring earthquakes is more commonly used in Japan than the Richter scale to describe earthquakes.  
    http://www.japan-guide.com/e/e2116.html
    
    Extractions: document.write(spod.nickname); document.write(spod.quote); document.write(spod.nickname); document.write(spod.quote); document.write(spod.nickname); document.write(spod.quote); Meet new friends, find pen-pals and language learning partners, or meet your ideal match! Travel Living A-Z ... Questions Search this site Apartment Search Area:

32. Earthquake
    Despite their slow speed, these waves are particularly destructive to human construction because they cause considerable ground movement. Earthquake Measurement  
    http://www.eoearth.org/article/Earthquake
    
    Extractions: Edited: July 18, 2010, 2:05 pm Lead Author: Michael Pidwirny Topics: Geology Rate: Content Source: USGS This article has been reviewed by the following Topic Editors: William Heins Galal Hassan Galal Hussein C Michael Hogan PhD. An earthquake is a sudden vibration or trembling in the Earth. More than 150,000 tremors strong enough to be felt by humans occur each year worldwide. Earthquake motion is caused by the quick release of stored potential energy into the kinetic energy of motion. Most earthquakes are produced along faults, tectonic plate boundary zones, or along the mid-oceanic ridges (Figures 1 and 2). At these areas, large masses of rock that are moving past each other can become locked due to friction. Friction is overcome when the accumulating stress has enough force to cause a sudden slippage of the rock masses. The magnitude of the shock wave released into the surrounding rocks is controlled by the quantity of stress built up because of friction, the distance the rock moved when the slippage occurred, and ability of the rock to transmit the energy contained in the seismic waves. The San Francisco earthquake of 1906 involved a 6

33. Facts About Modified Mercalli Intensity Scale: Earthquakes, As Discussed In Brit
    Facts about Modified Mercalli Intensity Scale earthquakes, as discussed in Britannica Compton's Encyclopedia earthquake Measurement  
    http://www.britannica.com/facts/11/827757/Modified-Mercalli-Intensity-Scale-as-d
    
    Extractions: document.write(''); Search Site: With all of these words With the exact phrase With any of these words Without these words Home Did you know... The strength of an earthquake may be measured either by the amount of damage done or through calculations using various instrument readings. The Modified Mercalli Intensity Scale is commonly used to determine the amount of destruction caused by an earthquake. It defines 12 levels of earthquake strength. Get Random Facts Britannica Content: Other Britannica sites: Australia France India Korea ... SHARE Save to My Workspace All of the media associated with this article appears on the left. Click an item to view it.

34. Analysis Of Earthquake Recordings Obtained From The Seafloor Earthquake Measurem
    Analysis of earthquake recordings obtained from the Seafloor Earthquake Measurement System (SEMS) instruments deployed off the coast of southern California  
    http://www.bssaonline.org/cgi/content/abstract/89/1/260

35. Buy.com - Earthquake Measurement (1883) Ewing, James Alfred : ISBN 33094
    Find, shop, and buy computers, laptops, books, dvd, videos, games, video games, music, sporting goods, software, electronics, digital cameras, camcorders, toys, luggage, and  
    http://www.buy.com/prod/earthquake-measurement-1883/q/loc/106/212678445.html

36. Earthquakes
    The California Geological Survey studies earthquakes to help Californians plan and build earthquake resistant communities. We record the strong ground motion from earthquakes  
    http://www.consrv.ca.gov/cgs/geologic_hazards/earthquakes/Pages/index.aspx

37. Earthquake Measurement: Question Preview
    Preview questions found in the review game data set titled Earthquake Measurement Chapter 5 , Section 2  
    http://reviewgamezone.com/preview.php?id=208

38. Himselp.Net.In - Home Page
    The Himalayan School Earthquake Laboratory Programme (HIMSELP) is one of the important components of the Mission Mode Project of Department of Science Technology, Govt. of India.  
    http://www.himselp.net.in/earthquakemeasurement.html
    
    Extractions: BGS.AC.UK HOW TO MEASURE THE SIZE OF EARTHQUAKE? The severity of an earthquake can be expressed in terms of both magnitude and intensity . However, the two terms are quite different, and they are often confused. INTENSITY Intensity is defined as the degree of damage.It is based on the observed effects of ground shaking on people, buildings, and natural features. It varies from place to place within the disturbed region depending on the location of the observer with respect to the earthquake epicenter. Rossi Forrels scale Modified Mercalli Scale MSK Scale EMS Scale (**********add link for reference) MAGNITUDE Magnitude is related to the amount of seismic energy released at the hypocenter of the earthquake. It is based on the amplitude of the earthquake waves recorded on instruments which have a common calibration. The magnitude of an earthquake is thus represented by a single, instrumentally determined value. Richter developed a scale using the amplitudes recorded during earthquake with standard Wood Anderson seismograph in California .Richter magnitude scale is a logarithamic scale .An increase in magnitude by 1 means 10 times higher wave amplitude and about 30 times higher energy release .Earthquake magnitude can be expressed in terms of energy of TNT.

39. Earthquake Measurement Games (ID: 208)
    Review Games Chapter 5 , Section 2 Chapter 5 , Section 2. Linked to NJ state standards at the 6th 7th grade level.  
    http://reviewgamezone.com/game.php?id=208

40. USGS Science Topics: Real-time Monitoring And Reporting
    Provides links to USGS information about realtime monitoring and reporting and earthquakes. Provides a topical browse interface into USGS information utilizing controlled  
    http://www.usgs.gov/science/combine.php?term=1351&with=304

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