The Whittier Narrows quake struck 30 years ago this Sunday, Oct. 1. Download Full PDF Package. The Whittier Narrows area is seismically active. The Whittier Narrows earthquake was located in the northeastern corner of the Los Angeles basin, halfway between the surface traces of the Raymond and Whittier faults. After the 1 October 1987 Whittier Narrows, southern California, earthquake (274 14:42 GMT, M L = 5.9), the U. S. Geological Survey installed digital GEOS seismographs at 32 temporary sites in the mainshock meizoseismal area ().Seismographs were installed in three deployments (), each designed to fulfill a specific experimental goal. Committee on Science, Space, and Technology. In 2014, a magnitude 5.1 earthquake struck along the Puente Hills thrust fault, which stretches from the San Gabriel Valley to downtown Los Angeles. The moderate 5.9 magnitude blind thrust earthquake was centered several miles north of Whittier in the town of Rosemead, had a relatively shallow depth, and was felt throughout southern California and southern Nevada. The 1987 Whittier Narrows earthquake occurred in the southern San Gabriel Valley and surrounding communities of southern California at 7:42 a.m. PDT on October 1. Thirty years ago, on October 1, 1987, the Whittier Narrows Earthquake struck the San Gabriel Valley and rattled most of Southern California. Though it turned out it was not the so-called "Big One" as many people would think, it was still a very strong earthquake.The shaking lasted for two to three minutes. Whittier College’s $12M gift High school football Montebello cheer coach arrested Montebello townhome controversy Camping World electric fence Earthquake Former tenants Joan DeWolf and Gary Benoit carry suitcases to salvage possessions from the Northridge Meadows Apartments on July 15, 1994. The October 1, 1987, Whittier Narrows earthquake (M L = 5.9) was located at 34°2.96′N, 118°4.86′W, at a depth of 14.6±0.5 km in the northeastern Los Angeles basin.The focal mechanism of the mainshock derived from first motion polarities shows pure thrust motion on west striking nodal planes with dips of 25°±5° and 65°±5°, respectively. Whittier, Alhambra, and Pasadena are frequently mentioned in stories about the earthquake because that’s where most of the damage happened. 5 years ago | 134 views. Experiments with different earthquake location methods applied to aftershocks of the October 1, 1987, Whittier Narrows earthquake in California (M L =5.9) suggest that local event locations can be greatly improved through the use of the L1 norm, station corrections and waveform cross correlation. The 1987 Whittier Narrows earthquake occurred in the southern San Gabriel Valley and surrounding communities of southern California at 7:42 a.m. PDT on October 1. These studies, begun before the earthquake hit [see, for example, Namson and Davis, 1988], have assumed much greater importance in its wake. HAZARD HOUSE COpy POST-DISASTER ADAPTIVE RESPONSES: PARENT-CHILD REACTIONS TO THE LOS ANGELES AREA/WHITTIER NARROWS EARTHQUAKE NORMA S. GORDON CARL A. MAIDA 1989 Quick Response Research Report #29 This publication is part of the Natural Hazards Research & Applications Information Center's ongoing QUick Response Research Report Series. Earthquake. Share. 0:57. February 1988; Earthquake Spectra 4(1) DOI: 10.1193/1.1585467. It was later nicknamed the Whittier Narrows Earthquake, as the epicenter was close to the sprawling park and nature area by the same name. If the 1987 Whittier Narrows earthquake is the characteristic earthquake along the 170-km-long anticlinorium, then recurrence intervals are estimated to be 5.6-12.1 years. At 4:57 a.m. local time (11:57 UTC) on June 28, 1992, a magnitude 7.3 earthquake awoke much of Southern California. Log in. Numerous homes and businesses were impacted, and roadways were damaged throughout much of Los Angeles and Orange County. 1987 Whittier Narrows Earthquake The earthquake didn't cause any tsunami's The reason earthquakes happen is because stress builds up and the focus breaks the ground where the epicenter is. SoCal "Whittier Narrows" Earthquakes (1987) ... Class 6 Science Earthquakes Chapter12 Part 8, Earthquakes, What Is Earthquake. Author: Brian Kehoe Structure Type: Architectural and Mechanical Nonstructural Components Earthquakes: 1987 Whittier Narrows, 1989 Loma Prieta, 1994 Northridge, 1992 Landers, 2014 South Napa Lessons: Loss of life due to earthquake damage to nonstructural components is rare in the United States, but given the extent of damage to nonstructural components in past earthquakes, … 1987 Whittier Narrows earthquake. Whittier Fault. Congress. WHITTIER NARROWS EARTHQUAKE INTRODUCTION The magnitude (ML) 6.1 Whittier Narrows earthquake of October 1, 1987, triggered strong-motion instrumentation at 52 stations operated in the Los Angeles area as part of the National Strong-Motion Instrumentation Network (NSMIN). The Whittier Narrows earthquake of October 1, 1987 was the most significant seismic event to occur in southern California since the San Fernando earthquake of February 1971. This paper. The Whittier Narrows, California Earthquake of October 1, 1987—Masonry Building Performance Survey It was 7:42 a.m. when the 5.9-magnitude Whittier Narrows earthquake struck. Download PDF. Whittier Narrows earthquake is a new assessment and synthesis of the strongly folded structures in the Los Angeles basin and adjacent areas. 8 people died, and the earthquake injured 700 people and more than 10,000 homes got There It 1987 Whittier Narrows earthquake: | | 1987 Whittier Narrows earthquake | | | | ... World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled. Sign up. The moderate 5.9 magnitude blind thrust earthquake was centered several miles north of Whittier in the town of Rosemead, had a relatively shallow depth, and was felt throughout southern California and southern Nevada. Whittier Narrows, CA, earthquake by United States. Fast Facts Tectonic Environment 7 miles southeast of Pasadena 5.9 magnitude earthquake blind thrust earthquake reached the majority of Southern California and as far as southern Nevada $358 million in damage About 10,000 structures were damaged and destroyed previously unknown, for sale by the national technical information The Elsinore-Whittier fault zone extends from Whittier Narrows southeast across the Santa Ana River, past Lake Elsinore, into western Imperial County and then into Mexico (Figure 1). -from Authors. The Northridge quake hit at 4:31 a.m. on Jan. 17, 1994. The 1987 Whittier Narrows earthquake occurred in the southern San Gabriel Valley and surrounding communities of southern California at 7:42 a.m. PDT on October 1. The Whittier Narrows, California Earthquake of October 1, 1987—Note on Peak Accelerations During the 1 and 4 October Earthquakes. Library. The Whittier Narrows earthquake is the largest earthquake to occur west of the San Andreas fault in southern California since the 1971 (M w=6.6) San Fernando earthquake. Mermaid Entertainment News. Whittier has had: (M1.5 or greater) 0 earthquakes in the past 24 hours 3 earthquakes in the past 7 days; 74 earthquakes in the past 30 days; 511 earthquakes in the past 365 days A short summary of this paper. TYPE OF FAULT: right-lateral strike-slip with some reverse slip LENGTH: about 40 km NEAREST COMMUNITY: Yorba Linda, Hacienda Heights, Whittier MOST RECENT SURFACE RUPTURE: Holocene SLIP RATE: between 2.5 and 3.0 mm/yr INTERVAL BETWEEN MAJOR RUPTURES: unknown PROBABLE MAGNITUDES: MW6.0 - 7.2 Introduction. the whittier narrows earthquake by eduardo miranda vitelmo v. bertero reproduced by u.s. department of commerce national technical information service springfield, va 22161 l..--. _ college of engineering university of california at berkeley. L. Jones Franco Pettenati. For longtime Whittier residents, Oct. 1, 1987, is the day they’ll never forget. The Whittier Narrows, California Earthquake of October 1, 1987—Seismology L. Jones; . The Whittier Narrows earthquake sequence (local magnitude, ML = 5.9), which caused over $358-million damage, indicates that assessments of earthquake hazards in the Los Angeles metropolitan area may be underestimated. Validation of the Automatic Source Inversion of the U. S. Geological Survey Intensities of the Whittier Narrows, 1987 Earthquake. SoCal "Whittier Narrows" Earthquakes (1987) Search. The Whittier Narrows earthquake sequence (local magnitude, M(L) = 5.9), which caused over $358-million damage, indicates that assessments of earthquake hazards in the Los Angeles metropolitan area may be underestimated. The Uptown Whittier area appeared to be flourishing before Oct. 1, 1987. The purpose of this report is to provide information about the data Watch fullscreen. The folds and surface faults in the upper 4-5 km Earthquakes similar to or like 1987 Whittier Narrows earthquake. House. Bulletin of the Seismological Society of America, 2004. But then the 5.9 magnitude Whittier Narrows earthquake hit with a flattening punch … Spectra 4 ( 1 ) DOI: 10.1193/1.1585467 a.m. on Jan. 17, 1994 to or like Whittier! 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