61. Australian Earthquake News If you felt any of these earthquakes, or especially if you were near an epicentre at the time of the event and DID NOT feel it, please fill out an intensity http://www.seis.com.au/EQ/Earthquakes.html

Australian Earthquake News produced by the Seismology Research Centre (SRC) This list includes significant events within the area covered by the SRC seismograph network. Unless otherwise noted, earthquake locations have been computed by the SRC (network code: MEL) Most magnitudes are given on the Richter local magnitude scale (ML) but other scales such as moment magnitude (MW) or surface wave magnitude (MS) are used for larger earthquakes Earthquake depths in eastern Australia range from just beneath the surface to about 20 km. If there is no seismograph near an epicentre it is difficult to determine the depth, so a "normal depth" of 10 km is assumed. If you felt any of these earthquakes, or especially if you were near an epicentre at the time of the event and DID NOT feel it, please fill out an intensity report 2008 April 14, Mt Moriac, VIC, ML 2.3 (Tuesday, April 15, 01:01 am AEST) This small earthquake occurred west of Geelong near Mt Moriac. Please fill out an intensity report if you felt this event or were in the epicentral area and did not feel anything.

62. Earthquakes - Discover Our Earth earthquakes release energy. The energy released is evident in the shaking ground that accompanies an earthquake, in the destruction of property, http://www.discoverourearth.org/student/earthquakes/index.html

Exercises Earthquakes Earthquakes release energy. The energy released is evident in the shaking ground that accompanies an earthquake, in the destruction of property, and in changes in the landscape. The Earth's interior is very hot. The heat is continually being produced and redistributed, causing motion within the Earth and on its surface. Even with that intense heat source, the rocks that make up the surface of the Earth are difficult to move. When they do, they often break suddenly, causing an earthquake. The place where the rocks break is called the earthquake focus. As the rocks "snap," energy travels away from the focus, just as ripples travel on the surface of a pond. There are two main types of waves that are generated by an earthquake, body waves and surface waves, each traveling with a different speed and with different motions. Within body waves, there are two types: P-Waves and S-Waves. The P-Wave ( Primary Wave, or Compressional Wave) is faster than, the S-Wave (Secondary Wave or Shear Wave). There are also two types of surface waves: Rayleigh Waves and Love Waves. Surface waves are slower than body waves. Usually, surface waves are observed at large distances (several hundreds of miles) and they cause the most damage in an earthquake. P-Waves are compressional waves, particles travel along the path of propagation:

63. Earthquakes An earthquake is a vibration of the Earth produced by a rapid release of energy (Tarbuck 378). The main features include the focus, the location within the http://www.umich.edu/~gs265/society/earthquakes.htm

Earthquakes and Society by Courtney Brunious and Amanda Warner Introduction An earthquake is a vibration of the Earth produced by a rapid release of energy (Tarbuck 378). The main features include the focus, the location within the Earth where the earthquake rupture starts, and the epicenter, the point on the Earth's surface directly above the focus. Earthquakes have a greater effect on society than most people think. These effects range from economical to structural to mental. An earthquake only occurs for a few brief moments; the aftershocks can continue for weeks; the damage can continue for years. Scientific Aspects Locating Earthquakes Seismographs record the ground shaking that results from the release of energy from earthquakes and help locate the epicenter and focus of an earthquake (Yeats 60). They have a mass freely suspended from a support that is attached to the ground. When the vibration from a distant earthquake reaches the instrument, the movement of Earth in relation to the stationary mass is recorded. The greater the interval between the arrival of the first primary wave and first secondary wave, the greater distance to the earthquake (Tarbuck 384). Modern seismology uses P wave's first motions and the amplitudes of direct P and S waves, surface waves and waves reflected many times from the surface of the earth to understand the earthquake source (Yeats 67). An earthquake may be initially located by comparing the differences in arrival times of various phases with standard time-tables and curves (Doyle 42). From there, earthquake depths are estimated by the arrival time of reflected waves from the surface above the focus. Earthquake depths vary and are generally categorized as shallow, with a focus within 70 km of the surface, intermediate, with a focus between 70 and 300 km of the surface, and deep, with a focus greater than 300 km below the surface. Ninety percent of all earthquakes occur at depths less than 100 km and almost all of the very damaging earthquakes appear to originate at shallow depths (Tarbuck 387). The majority of earthquakes are "shallow," within the upper cooler crust and in the most brittle part of the lithosphere (Doyle 44).

64. EduHound Site Sets :: Earthquakes Online exhibit looking at what earthquakes are, why they occur, how they have been viewed through history, and why we can t predict them. http://www.eduhound.com/site_sets/Earthquakes.cfm

EduHound's Ed Tech Resource Newsletter Provides valuable ed tech resources to incorporate into K-12 curriculum. Educational topics, preformatted templates, technology tutorials, and practical tips are featured. ARCHIVES SUBSCRIBE Awesome Clipart for Educators EduHound Site Sets ... EduHound Classrooms on the Web EduHound Site Sets var addthis_pub = 'katharin20'; Earthquakes Featured Partner MINI-LESSON Earthquakes Students use a graphic organizer to learn about earthquakes. Additional resources available at www.timeforkids.com TheTech: The Earthquake Shake Online exhibit looking at what earthquakes are, why they occur, how they have been viewed through history, and why we can't predict them. http://www.thetech.org/exhibits/online/quakes/ http://earthquake.usgs.gov/learning/ Faultine: Seismic Science at the Epicenter Contains information on earthquake engineering, how and why earthquakes happen, and the history of the Loma Prieta Earthquake and the "Great Shake" of 1906 in California. http://www.exploratorium.edu/faultline/index.html

65. KTVU.com: San Francisco Bay Area, San Jose And Oakland Earthquakes; San Andreas KTVU.com San Francisco Bay Area, San Jose and Oakland earthquakes; San Andreas Fault, Quake. http://www.ktvu.com/earthquakes/

Site Web Events Make KTVU.com Your Homepage Contact the Station 5 Day Forecast Mobile ... BayInsider Major California Earthquakes California's Most Damaging Quakes Where did the 1989 Loma Prieta Earthquake stand among the state's earthquakes? Here's a list of the major quakes that have rumbled through California from 1700 to 2003. More Details Weather Tools Lightning Interactive Severe Weather: Tornadoes ... Today's Almanac Normal High: Normal Low: Record High: Record Low: Sunrise: 6:34 am Sunset: 6:06 pm Moonrise: 5:31 am Moonset: 4:14 pm Today's Moon: crescent, waning Search for historical data here: January February March April May June July August September October November December More Weather HOME Earthquakes Wednesday, May 28, 2008 7:14 pm PDT Earthquakes Scientists Probe Lucas Valley For Quake Clues Scientists searching for ways to predict the next major Bay Area earthquake took their quest to Marin's Lucas Valley Wednesday, using a 40-foot tall drilling rig to dig deep into the earth to check on the movement of the plate boundary. More Details SAN RAFAEL: John Fowler Reports On Lucas Valley Probe For Quake Clues SLIDESHOW: Remembering the 1989 Loma Prieta Earthquake KTVU.com Earthquake Preparedness Guide

66. Mexico - Earthquakes The subduction of the Cocos plate accounts for the frequency of earthquakes near Mexico s southern coast. As the rocks constituting the ocean floor are http://countrystudies.us/mexico/49.htm

Earthquakes Mexico Table of Contents Situated atop three of the large tectonic plates that constitute the earth's surface, Mexico is one of the most seismologically active regions on earth. The motion of these plates causes earthquakes and volcanic activity. Areas off Mexico's coastline on the Gulf of California, including the Baja California Peninsula, are riding northwestward on the Pacific plate. Rather than one plate subducting, the Pacific and North American plates grind past each other, creating a slip fault that is the southern extension of the San Andreas fault in California. Motion along this fault in the past pulled Baja California away from the coast, creating the Gulf of California. Continued motion along this fault is the source of earthquakes in western Mexico. Mexico has a long history of destructive earthquakes and volcanic eruptions. In September 1985, an earthquake measuring 8.1 on the Richter scale and centered in the subduction zone off Acapulco killed more than 4,000 people in

67. Earthquakes - Iceland Locations of earthquakes in Iceland in the last 48 hours are shown as circles. The image is refreshed every 2 minutes. The colors of the circles show the http://hraun.vedur.is/ja/englishweb/

Physics Department (formerly Department of Geophysics) Department Earthquakes GPS Tremor ... Mývatn Note! These are first results of the automatic location system. The earthquakes have not been interactively analyzed. Locations of earthquakes in Iceland in the last 48 hours are shown as circles. The image is refreshed every 2 minutes. The colors of the circles show the time since the earthquakes occured (the numbers below the color palette represent hours). The latest earthquakes are shown in red and the dark blue ones occurred over 24 hours ago. The earthquakes stay blue until 48 hours have elapsed since their occurrence, then they disappear. Earthquakes bigger than M3 (on the Richter scale) are represented with green stars that turn yellow after 24 hours. For regional maps click the desired region in the green banner or the map. Earthquake list EWIS: early warning and information system Apologies for the Icelandic text, an English version will follow soon.) Earthquakes for Google Earth

68. What We Do.The Active Earth : GNS Science Limited GNS Science records about 14000 earthquakes in and around New Zealand each year. The Institute records these earthquakes on a nationwide network of http://www.gns.cri.nz/what/earthact/earthquakes/index.html

Skip navigation Home Site Index Contact Us : Search who we are learning research services ... what's new GNS Science Earthquake information Index Latest quake Recent quakes Seismic drums ... Research programmes GNS Science records about 14,000 earthquakes in and around New Zealand each year. Most are small, but between 100 and 150 are big enough to be felt. The Institute records these earthquakes on a nationwide network of instruments called seismographs. New Zealand's position on the boundary of the Australian and Pacific plates is the reason for the large number of earthquakes we witness. Underneath New Zealand these two huge plates are grinding together in three distinct ways. To the east of the North Island the Pacific plate is being forced under the Australian plate. Under the South Island the two plates push past each other sideways, and to the south of New Zealand the Australian plate is being forced under the Pacific plate. There is still a great deal to learn about the causes of earthquakes, volcanic eruptions and landslides. The new and higher quality information from the

69. Arizona Earthquake Information Center - AEIC The purpose of the AEIC is to collect and distribute information on Arizona earthquakes, and to conduct research on them. We are located in the Geology http://www4.nau.edu/geology/aeic/aeic.html

Seismology Trivia The following pages have pictures to identify. Click on any picture for the answers. HISTORY OF AEIC WEEKLY SEISMOGRAMS AZ QUAKE HISTORY BULLETINS PUBLICATIONS STATION MAP EARTHQUAKE MAPS EMERGENCY AGENCIES SEISMO- SEARCHING CONTACT THE AEIC March 2, 2005 M4.6 Mogollon Plateau earthquake recorded at Flagstaff. Welcome to the Arizona Earthquake Information Center (AEIC) website. The purpose of the AEIC is to collect and distribute information on Arizona earthquakes, and to conduct research on them. We are located in the Geology Department on the campus of Northern Arizona University. Feel free to explore the pages within via the various links on the left side of the screen. Liquefaction effects in Yuma from the 1940 Imperial Valley earthquake. (from Historical Seismicity in Arizona, AZ BGMT) Updated by M. Zahler, 10/31/06

70. PNSN - Pacific Northwest Seismic Network Operates seismograph stations, locates earthquakes in Washington, and disseminates information on regional earthquake and geologic hazard activity. http://www.ess.washington.edu/SEIS/PNSN/

The Pacific Northwest Seismic Network All about earthquakes and geologic hazards of the Pacific Northwest HOME Latest Quakes Volcanoes Research ... CONTACT US Home Page - The Pacific Northwest Seismic Network (PNSN) Quick Links: Latest PNW Quakes Notable Quakes NEWS Volcanoes ... New: Seattle Urban Seismic Hazard Maps The PNSN operates seismograph stations and locates earthquakes in Washington and Oregon. Our web site provides information on Pacific Northwest earthquake activity and hazards. We are based at the University of Washington in the Department of Earth and Space Sciences We are operated jointly by several northwest institutions We are funded by the US Geological Survey ( USGS ), the Department of Energy, and the State of Washington. This is file /SEIS/PNSN/welcome.html, last modified 01/28/03

71. Virtual Courseware : Earthquake : Home An interactive exercise which demonstrates how seismologists pinpoint the epicenter of an earthquake using seismic waves. http://www.sciencecourseware.org/eec/Earthquake/

72. Southern California Earthquake Data Center Home The data center maintains a searchable archive of earthquake data for research in seismology and earthquake engineering. Includes general information http://www.scecdc.scec.org/

Home Research Tools General Earthquake Information Stations/ Instrumentation ... About the Data Center Supported by:

73. Report An Earthquake: California Home Select an earthquake from the list to view a map or submit your own report. If you can t find the quake you felt please wait several minutes for it to http://pasadena.wr.usgs.gov/shake/ca/

California Alaska Hawaii W. Mountain Pacific NW ... Comments Region home Recent significant events in the California region Did you feel it? Select an earthquake from the list to view a map or submit your own report. If you can't find the quake you felt please wait several minutes for it to appear online. If you still can't find it, fill out an unknown earthquake form. To see more maps, check out our Top Ten Lists , which rank our most felt earthquakes ever. Also, look for important past earthquakes in the Archives Note: Maps are not created for events that do not result in a trigger at ANSS. These are generally smaller earthquakes that are not widely felt. We still accept questionnaires for these earthquakes, and we may manually add significant events to this website. SELECT EARTHQUAKE LOCATION DATE TIME MAGNITUDE 2 miles NE of Colton, CA (ID MAY 28 2008 13:50:49 PDT 11 miles ESE of Willow Creek, CA (ID 40216664) APR 29 2008 20:03:07 PDT HISTORIC EVENTS DATE TIME MAGNITUDE 9 miles S of Parkfield, CA SEP 28 2004 10:15:24 PDT Hector Mine OCT 16 1999 02:46:45 PDT Near Reseda, CA

74. Exploratorium: Faultline, Seismic Science At The Epicenter Investigates life and science along California s fault lines. The site includes exclusive video from the 1989 Loma Prieta earthquake. http://www.exploratorium.edu/faultline/

Faultine: Seismic Science at the Epicenter is made possible through the generosity of The Gordon and Betty Moore Foundation and the Jim Clark Endowment for Internet Education. Live Eye Great Shakes Quake Basics Damage Control ... Web site credits In April 1906, an earthquake devastated San Francisco. Seismologists say another major temblor is due soon. What do we know now that we didn't then? A lot, but not enough.

75. Page Has Moved Earthquake event data, earthquake strong motion data, seismological algorithms, and earthquake slide sets available from NGDC. http://www.ngdc.noaa.gov/seg/hazard/earthqk.shtml

Search NGDC Search NOAA NOAA NESDIS NGDC comments We have made changes to our website The page you requested: http://www.ngdc.noaa.gov/seg/hazard/earthqk.shtml is now at the following URL: http://www.ngdc.noaa.gov/hazard/earthqk.shtml Please click on the new URL to continue or select from the subject list below and update any bookmarks. Thank you. Natural Hazards: Tsunami, Earthquake, Volcano, Geothermal http://www.ngdc.noaa.gov/hazard Geomagnetism, Magnetic Models, Declination Calculators http://www.ngdc.noaa.gov/geomag Gravity http://www.ngdc.noaa.gov/mgg/gravity Topography http://www.ngdc.noaa.gov/mgg/topo World Data Center for Solid Earth Geophysics http://www.ngdc.noaa.gov/geomag/wdc Ecosystems Informatics, Soils, Groundcover http://www.ngdc.noaa.gov/ecosys NOAA NESDIS NGDC ... Hazards questions: Questions NGDC home maintained by: Operator

76. Earthquake Research Institute, University Of Tokyo Links to Divisions and Research Centers of the Earthquake Research Institute at the University of Tokyo. http://www.eri.u-tokyo.ac.jp/

Earthquake Research Institute, University of Tokyo Zip. 113-0032 1-1-1, Yayoi, Bunkyo-ku, Tokyo [Access Map] [Campus Map] English/ Japanese About ERI Research Database ... [Internal Only] Read this document first SiteMap International workshop on high energy earth science [Available position at ERI] Now there is no recruitment Quick Report for Eastern Suchuan Earthquake The Niigataken Chuetsu-oki Earthquake (2007/07/15) The Noto Hanto Earthquake (2007/03/25) Kuril Earthquake (2007/01/13) ... The eruption of Merapi volcano (2006/05/19) (PDF File : 300KB in Japanese) East Off Izu Peninsula Earthquakes (2006/04/21) Sanriku-oki Earthquake (2005/11/14) Pakistan Earthquake (2005/10/08) Northern Peru Earthquake (2005/09/26) ... The information of recent earthquakes and volcanic activities News from ERI international workshop on high energy earth science International Workshop "What can be done with seafloor observation networks?" will be held on March 10 and 11, 2008 (PDF File : 216KB) International symposium on the restoration program from giant earthquakes and tsunamis will be held on January 22-24, 2008 IGCP-502 workshop , Relationship between VMS (Kuroko) depositsband the Evolution of Volcanic Arcs, Japan 2nd International Workshop on Long-Period Ground Motion Simulation and Velocity Structures Life in Japan and ERI for Foreign Researchers 12th International Symposium on "Deep Seismic Profiling of the Continents and Their Margins" (SEISMIX2006) 2nd Circular

77. Earthquake! Earthquake data provided by EuropeanMediterranean Seismological Centre. Earthquake data provided by Geoscience Australia, US Geological Survey, http://earthquake.googlemashups.com/

document.write(""); Earthquake data provided by European-Mediterranean Seismological Centre Earthquake data provided by Geoscience Australia Earthquake data provided by US Geological Survey Earthquake data provided by Geoscience Australia US Geological Survey , and European-Mediterranean Seismological Centre All times given in UTC. 'Felt' and 'Damage' radii are approximations only. ©2007 Reto Meier - Radioactive Yak Software Magnitude:

78. SyzygyJob - Home On average an earthquake of +6.0M occurs about every three days. During the 8day February Window there were six quakes of 6.0-6.9M and two of 7.0-7.4M. http://www.syzygyjob.com/

Home Links Contact Us News Home Events Calendar May 2008 S M T W T F S This month Main Menu Home Subscribe Biography News / Predictions ... Administrator APRIL RESULTSPREDICTIONS FOR MAY Contributed by JOB Thursday, 01 May 2008 The Seismic Window of April 5-12, 2008 was quite productive, which was typical for most Aprils. (1) For NorCal there was a 3.0M event near Tres Pinos on April 5 th and a 2.9M event near Santa Rosa on April 9 for no credit. The nearest quake of 3.5+ was the strongest of a Reno swarm of 3.6, 3.4, 3.4, 3.2 that hit on April 15 th , which was three days late (70%) and 14 miles beyond my predicted radius of 140 miles from Mt. Diablo (Score .70 x .90 x 1.00 = (2) For SoCal on April 6 th a 3.2M shook Barstow (70%) and a 3.6M hit near Ridgecrest Score: On April 14 th a 3.4M rattled Yucca Valley (90%) and on the same day there was a 3.2M near Santa Barbara (70%). On April 4, a 3.7M hit near Ocotillo early and far (63%). (3) The Northwest came through strongly on the first day of the Window with an unusual quake of 3.6M near Maupin, Oregon Score: 100%) A lesser score of 70% was received for the 5.2 on April 2

79. Putting Down Roots In Earthquake Country Electronic version of the Putting Down Roots in Earthquake Country handbook released to Southern Californians in October of 1995. http://www.earthquakecountry.info/roots/

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