the 1989 loma prieta earthquake quizlet

Game 3 of the series was scheduled to begin at San Francisco's Candlestick Park on October 17 at 5:35 PDT, and American TV network ABC began its pre-game show at 5:00 PDT. [79], San Francisco Municipal Railway (Muni) lost all power to electric transit systems when the quake hit, but otherwise suffered little damage and no injuries to operators or riders. 1989 Loma Prieta Quake - The Earthquake Museum 0000004685 00000 n [65], The San FranciscoOakland Bay Bridge suffered severe damage, as a 76-by-50-foot (23m 15m) section of the upper deck on the eastern cantilever side fell onto the deck below. The strong motion records also allowed for the causative fault to be determined the rupture was related to the San Andreas Fault System. 3 small earthquakes struck near Antioch Sunday afternoon, USGS [58] Santa Cruz beach lifeguards assisted in moving the victims. Why do earthquakes in other countries seem to cause more damage and casualties than earthquakes in the U.S.? The game was initially postponed due to safety concerns for fans in the ballpark and the loss of power. endstream endobj 51 0 obj <>/Font 54 0 R/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]/XObject 55 0 R>>/Type /Page>> endobj 52 0 obj [/CalGray <>] endobj 53 0 obj [/ICCBased 60 0 R] endobj 54 0 obj <> endobj 55 0 obj <> endobj 56 0 obj <> endobj 57 0 obj <> endobj 58 0 obj <> endobj 59 0 obj <> endobj 60 0 obj <> stream [78] Large cracks in Oakland's runway and taxiway reduced the usable length to two-thirds normal, and damage to the dike required quick remediation to avoid flooding the runway with water from the bay. These effects: include the pattern and characteristics of strong ground shaking, liquefaction of both floodplain deposits along the Pajaro and Salinas Rivers in the Monterey Bay region and sandy artificial fills along the margins of San Francisco Bay, landslides in the epicentral region, and inc, 12201 Sunrise Valley Drive Reston, VA 20192. [69], Built-in the late 1950s and opened to traffic in 1957 (as SR 17), the Cypress Street Viaduct, a stretch of Interstate 880, was a double-deck freeway section made of nonductile reinforced concrete[70] that was constructed above and astride Cypress Street in Oakland. order to locate the earthquake, but it was not possible to use the [49] After the Exposition, apartment buildings were erected on the landfill. What are those booms I sometimes hear before or during an earthquake? 1989 Loma Prieta Earthquake - University of California, What did they do to the San Francisco city hall? The epicenter was located in the Santa Cruz mountains, near Loma Prieta peak, about 70 earthquake Of course, most "booms" that people hear or experience are actually some type of cultural noise, such as some type of explosion, a large vehicle going by, or sometimes a sonic boom, but there have been many reports of "booms" that cannot be explained by man-made sources. Having boasted a magnitude of 6.9, it is the biggest to hit the region in 34 years. The shock was centered in The Forest of Nisene Marks State Park in Santa Cruz County, approximately 10mi (16km) northeast of Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta Peak in the Santa Cruz Mountains. amplitude information until the San Francisco Earthquake WebQuestion: 1)The 1989 Loma Prieta Earthquake a)Produced little damage because most of the areas affected were built on bedrock b)Destroyed freeways and buildings built on landfill c. Was produced by a normal fault d.Was produced by a reverse fault 2 )A _____ earthquake on the Richter scale can cause significant property damage. What is liquefaction? | U.S. Geological Survey [35] At the Santa Cruz Beach Boardwalk, the Plunge Building was significantly damaged. Limited phone service remained online, providing a crucial link to rescue workers. It happened on October 17, 1989, at 5:04 p.m. local Having boasted a magnitude of 6.9, it is the biggest to hit the region in 34 Because it happened during a national live broadcast of the 1989 World Series, the annual championship series of Major League Baseball, taking place between Bay Area teams San Francisco Giants and the Oakland Athletics, it is sometimes referred to as the "World Series earthquake", with the championship games of the year being referred to as the "Earthquake Series". 6 of 239 7 of 239 In this photo taken Oct. 17, 1989, a pick up truck sits on the Cypress freeway in Oakland, Calif., after it collapsed during the Loma Prieta earthquake. Roughly half of the land the Cypress Viaduct was built on filled marshland and half on somewhat more stable alluvium. [16], The contrasting characteristics of the 1906 and 1989 events were examined by seismologists Hiroo Kanamori and Kenji Satake. For the latter event, peak ground accelerations range from 0.13 gravity to 0.81 gravity, sufficiently high to be of concern for liquefaction. The 1989 event's oblique-slip rupture was at 10km and below on a fault plane that dipped 70 to the southwest. What was the magnitude of this earthquake? Hawaiian Islands, c. Magma extruded from rift valleys which are developing [12], Since many forecasts had been presented for the region near Loma Prieta, seismologists were not taken by surprise by the October 1989 event. trailer <>startxref 0 %%EOF 50 0 obj <>]/Pages 39 0 R/Type /Catalog/Version /1.4/ViewerPreferences <>>> endobj 64 0 obj <> stream Cut the building in half an floated it on 530 Base isolators. At the time of the Loma Prieta earthquake, the Berkeley Loma Prieta and other nearby mountain peaks are pushed upward by local collision forces associated with a left bend in the San Andreas fault. Magnitude of 6.9 comments sorted by Best Top New Controversial Q&A Add a Comment The earthquake happened during one of the games of the 1989 World Series. Prediction 1)The 1989 Loma Prieta Earthquake ensure that the full range of ground motions are recorded on scale. Loma Prieta Earthquake, October 17, 1989 How old is Golden Gate Bridge? San Francisco earthquake of 1989, also called Loma Prieta earthquake, major earthquake that struck the San Francisco Bay Area, California, U.S., on October 17, 1989, and caused 63 deaths, nearly 3,800 injuries, and an estimated $6 billion in property damage. It was the strongest earthquake to hit the area since the San Francisco earthquake of 1906. The Loma Prieta earthquake caused a great deal of destruction in San Francisco, amassing to about, The earthquake struck Candlestick Park in San Francisco at. [22], The Marina district was built on a landfill made of a mixture of sand, dirt, rubble, waste, and other materials containing a high percentage of groundwater. Problem 3: The east span of the San Francisco-to-Oakland Bridge was damaged in the 1989 Loma Prieta Earthquake. Oct 17, 1989 CE: Loma Prieta Earthquake - National The focus is on products that provide situational awareness immediately after significant earthquakes. )L^6 g,qm"[Z[Z~Q7%" The 1989 Loma Prieta Earthquake was an earthquake that took place in the San Francisco Bay Area. There is nothing different about a cave that would make it immune to the shaking from an earthquake. The 1989 Loma Prieta Earthquake - California Department [8][14], The June 27, 1988, shock occurred with a maximum intensity of VI (Strong). [64], Damage to the Salinas River rail bridge and subsequent repairs led to reduced traffic on the Monterey Branch Line, which contributed to the discontinuance of freight rail services in western Monterey County. WebCompares the 1989 loma prieta earthquake to the 1906 earthquake, which destroyed most of san francisco and its buildings. 0000001710 00000 n Web30 years ago, the Loma Prieta earthquake shook for 15 seconds and changed the Bay Area forever. Loma Prieta The 1989 Loma Prieta event originated on an undiscovered oblique-slip reverse fault that is located adjacent to the San Andreas Fault. The malfunctions during the aftermath of the earthquake caused confusion as to whether an earthquake would cause the Emergency Broadcast System to activate. With an Mw magnitude You'll get a detailed solution from a subject matter expert that helps you learn core concepts. CGS's Related Maps and Publications. [80] Cable cars and electric trains and buses were stalled in place half of Muni's transport capability was lost for 12 hours. Because of that, it is sometimes called the "World Series Quake". One 50-foot (15m) section of the San FranciscoOakland Bay Bridge also collapsed, leading to a single fatality, Anamafi Moala, a 23-year-old woman. In September 2005, it moved its transmitter 83 kilometres (52mi) northwest to San Bruno Mountain after it became the Bay Area's NBC affiliate. The driver, Anamafi Moala, died, and the passenger, her brother, was seriously injured. 1989 Loma Prieta earthquake - Wikipedia Well, folks, that's the greatest open in the history of television! A. San Jose International Airport,[77] Oakland International Airport and San Francisco International Airport all opened the next morning. This left bend is renowned among geologists as a archetypal restraining bend which acts to oppose strike-slip motion along the fault. From 1976 through 1990 amateur astronomer Donald Machholz set up his telescope an average of 120 times a year on the south slope of this mountain to search for comets. Bryant Gumbel, Jane Pauley and Deborah Norville anchored from Chicago (where they had planned to originally do a special celebratory edition), with reports done by Bob Jamieson and Don Oliver in San Francisco, and George Lewis in Oakland. Nearby residents and factory workers came to the rescue, climbing onto the wreckage with ladders and forklifts[31] and pulling trapped people out of their cars from under a four-foot gap in some sections. Another 63 damaged structures were judged too dangerous to live in. We expect WebTools. When did the Loma Prieta earthquake occur? [41] About an hour and 40 minutes after the quake, Fox affiliate KTVU resumed broadcasting, with their news anchors, Dennis Richmond and Elaine Corral reporting from the station's parking lot. Expert Answer. The last 'Big One' to hit the Bay Area occurred in 1989, with the Loma Prieta earthquake. A miscommunication made by emergency workers at Yerba Buena Island routed some drivers the wrong way; they were directed to the upper deck where they drove eastward toward the collapse site. Highest peak in the Santa Cruz Mountains in Northern California, For the 1989 earthquake that affected the San Francisco Bay and Monterey Bay regions, see, List of summits of the San Francisco Bay Area, National Oceanic and Atmospheric Administration, "Exhumation history of the Sierra Azul Block of the Santa Cruz Mountains Revealed Using Low Temperature Thermochronology", https://en.wikipedia.org/w/index.php?title=Loma_Prieta&oldid=1141161086, Mountains of Santa Clara County, California, Short description is different from Wikidata, Pages using infobox mountain with language parameter, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 23 February 2023, at 17:40. Street-level Mandela Parkway now occupies the previous roadbed of the Cypress structure. of the 16-bit systems, all of these instruments "clipped". Recently acquired cone-penetrometer test, The Colorado River Delta region of southern Imperial Valley, California, and Mexicali Valley, Baja California, is a tectonically dynamic area characterized by numerous active faults and frequent large seismic events. The initial media reports failed to take into account the game's effect on traffic and initially estimated the death toll at 300, a number that was corrected to 63 in the days after the earthquake.

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