51.8 km depth. ETS Event of Fall 2013. This earthquake was a 6.8 moment magnitude that caused $2 billion damage while the Northridge earthquake was a 6.7 moment magnitude, but caused more than $20 billion worth of damage as the hypocenter of the Northridge earthquake was much shallower and closer to the surface of the earth. Deep "subduction" quakes generally do not produce aftershocks, but two minor jolts were recorded during the night, and the danger remains for residual landslides of loosened soils. The event was similar in mechanism to the earthquakes of April 13, 1949 (Puget Sound earthquake; M w = 7.1) and the April 29, 1965 (Seattle earthquake; M w = 6.7)(Bray and others, 2001). For more information, contact Qamar at (206) 685-7563, (206) 543-7010 or tony@geophys.washington.edu, For more information about the Nisqually earthquake and seismology in the Northwest, see http://www.geophys.washington.edu. TimesMachine is an exclusive benefit for home delivery and digital subscribers. Reprint. 15,000 first printing. Praise for Fred Moody's previous books: "An engrossing, sometimes horrifying, fly-on-the wall account of the men, the women, and the work of VR in the Seattle area in the mid-1990s. The 2001 Nisqually earthquake occurred at .mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}10:54:32 local time on February 28, 2001 and lasted nearly a minute. 1936 - July 15 - Centered around Milton-Freewater. Estimated shaking in the Puget Sound Estimated peak ground velocities (PGV) in the Puget Sound region from a magnitude-9.0 earthquake on the Cascadia subduction zone. Landslides occurred near lake and along Columbia River. Executive Summary A magnitude 6.8 earthquake occurred near Olympia, Washington on February 28, 2001. Following on the previous day's "Fat Tuesday" riots, some dubbed the latest disturbance in Pioneer Square "Crash Wednesday.". 11 earthquakes in the past 30 days. Earthquakes in the Benioff zone do not produce tsunamis of any significance. history. That 1939 earthquake happened 80 years ago this week. That Washington ranks second in earthquake risk behind California might be surprising to some of the million-plus people who have swelled the Puget Sound region's population since 2001. [6] This was the most recent of several large earthquakes that occurred in the Puget Sound region over a 52-year period and caused property damage valued at $1–4 billion. 1986. Three types of earthquake are observed in the area: rare megathrust events, such as the 1700 Cascadia earthquake, shallow events within the North American Plate and deeper intraslab events within the Juan de Fuca Plate as it sinks into the mantle. [21], A rapid response plan was developed a year later. On February 28, 2001, Puget Sound was rocked by an M6.8 deep earthquake centered about 30 miles (50 km) beneath the surface. The most recent Seattle Fault earthquake was about 1,100 years ago; The Seattle Fault has been active about three or four times in the past 3,000 years. - Staff writer, Puget Sound . With these results, we can see which parts of the Puget Sound would experience the strongest shaking during a possible repeat of the 1700 quake. Older private and government buildings, including the State Capitol in Olympia, sustained serious damage, as did several buildings in Seattle's historic Pioneer Square district, where brick fascia and cornices toppled from several buildings, crushing parked automobiles but, miraculously, missing pedestrians. In less than a minute, an estimated 200 . Damage was in the billions; many died. ETS Event of Spring 2018. somewhat less for the 2001 Nisqually earthquake than for the Puget Sound earthquake of April 13, 1949, which had nearly the same hypocenter and magnitude. Earthquake shakes Puget Sound businesses. The 2001 Nisqually earthquake occurred at 10:54:32 local time on February 28, 2001 and lasted nearly a minute. [17][18], Named after the Nisqually Delta, this earthquake hit the southern end of Puget Sound causing damage to the ports of Seattle and Tacoma. Nationally, the USGS monitors and assesses geologic and hydrologic natural hazards. Seismicity along deep faults such as the Nisqually earthquake fault, and along shallow faults in the Puget Low-lands, is regionally concentrated in this area. On Wednesday, 28 February 2001, a moment magnitude 6.8 earthquake occurred beneath the southern Puget Sound area of Washington State. "A discussion of major types of natural disasters, including descriptions of some of the most destructive; explanations of these phenomena, what causes them, and where they occur; and information about how to prepare for and survive these ... Found inside â Page 1Allowing for differences in hypocenter, shaking in the 2001 earthquake was very similar to that produced by the Puget Sound earthquake of April 25, 1965. These views of Seattle and Puget Sound were all produced by Seattle area photographers who captured perfect moments in time through the lens of a camera. The book includes numerous exercises and a variety of computer subroutines written in FORTRAN. Graduate students and researchers in geophysics will find this book essential. By Business Journal Staff. Many businesses, organizations, hospitals, etc. ITS 2001 Proceedings, Session 7, Number 7-7 761 Simulation of paleotsunamis in Puget Sound, Washington Shunichi Koshimura1, Andrew L. Moore2, and Harold O. Mofjeld1 1NOAA/Pacific Marine Environmental Laboratory, Seattle, Washington, U.S.A. 2Disaster Control Research Center, Tohoku University, Aoba, Sendai, Japan Abstract. The 7.1 magnitude earthquake on April 13, 1949 at 11:55 a.m. is the largest earthquake in the Puget Sound area since colonizers settled on the land. The ground in the Puget Sound region didn't just shake during the magnitude 6.8 Nisqually earthquake, it moved — literally. In 2001, the Nisqually earthquake near Olympia shook western Washington and caused over $500 million worth of damage. 2001-02-28 18:54:32 (UTC) 47.149°N 122.727°W. Just better. Seconds before the quake struck, keepers reported that the orangutans began to bellow and the elephants (attuned to sounds far below the threshold of human hearing) became agitated. I joined a fraternity house—Beta house—and in my sophomore year, my fraternity brothers told me about a scholarship opportunity through Kemper Insurance. [19] Liquefaction was also determined to be a main contributor to increased stream flows. It measured a 6.8 magnitude and violently shook southern Puget Sound. Shallow. [7], The earthquake was an intraslab event within the Juan de Fuca Plate. The 6. This was the largest earthquake to occur in near a urban area in the United States since A megathrust earthquake could reach M9.0+ and affect an area from Canada to northern California. This included several bridges, all state offices in Olympia, and Boeing's factories in the Seattle area. Records also indicate that earthquakes in the Puget Sound Region, such as the 1949 magnitude 7.1 event near Olympia, WA, and the 1965 magnitude 6.5 event located between Seattle and Tacoma, can cause damage in Portland. The tide also plays a major role in the areas inundated since the tides in Puget Sound vary by about 4 meters, thus the tsunami will be modeled at high and low tide levels. In the Nisqually earthquake, GPS sensors showed a Coast Guard station at Point Robinson on the east edge of Maury Island moved 8 millimeters to the south-southwest and the UW campus moved 5 millimeters — about two-tenths of an inch — south-southwest. Found insideIn the course of telling this fascinating story, Williams helps readers find visible traces of the cityâs former landscape and better understand Seattle as a place that has been radically reshaped. Sherrod, B.L., 2001, Evidence for earthquake-induced subsidence about 1100 years ago in coastal marshes of southern Puget Sound, Washington: Geological Society of America Bulletin, v. 113, p. 1299-1311. Found insideHere are tales that will make readers laugh and cry and embrace with passion the calling of our better angels to change the way we take care of ourselves, our families, our communities, and the world. The 1965 earthquake caused over $50 million in damage. Growing up believing that her father was responsible for murdering her mother 20 years earlier, Elizabeth returns to her hometown in search of answers and discovers evidence of her father's innocence and the ongoing agenda of the real ... 51.8 km depth. March 1, 2001. Found inside â Page 44-1996 , Thickness of unconsolidated deposits in the Puget Sound Lowland ... T.P. , 1975 , The Devils Mountain fault zone , northwestern Washington : Seattle ... [10] Additionally, power outages affected downtown Seattle. 5) Select plot type. Seattle's Fenix Underground storefront after the 2001 Nisqually earthquake. Found inside â Page 69Southern Puget Sound, 2001 The February 28, 2001, M6.8 earthquake was a slab earthquake, the most frequent and generally the most benign type of quake in ... The 1965 Puget Sound earthquake occurred at 08:28 AM PDT (15:28 UTC) on April 29 within the Puget Sound region of Washington state.It had a magnitude of 6.7 on the moment magnitude scale and a maximum perceived intensity of VIII (Severe) on the Mercalli intensity scale.It caused the deaths of seven people and about $12.5-28 million in damage. [15] The new tunnel is designed to withstand a 9.0 MW earthquake. Found inside â Page 142Nisqually Earthquake - A magnitude 6.8 earthquake occurred 10 miles northeast of Olympia , WA , on February 28 , 2001. The earthquake was widely felt in the ... It was felt from British Columbia Sunday marks 20 years since the Nisqually earthquake shook the region. Very strong mag. PANGA’s measurements have shown that typically the central Puget Sound region moves to the east-northeast at about 3 to 5 millimeters per year. Prepared by the Technical Council on Lifeline Earthquake Engineering of ASCE. This TCLEE Monograph details the effects of the Nisqually, Washington, earthquake of February 28, 2001. In this fascinating book, The Seattle Times science reporter Sandi Doughton introduces readers to the scientists who are dedicated to understanding the way the earth moves and describes what patterns can be identified and how prepared (or ... It shook the area 20 years ago (on February 28, 2001) causing billions of dollars in damages. Improved Seismic Monitoringââ¬"Improved Decision-Making, describes and assesses the varied economic benefits potentially derived from modernizing and expanding seismic monitoring activities in the United States. Significant intraslab earthquakes occurred in the same general region on April 29, 1965 (magnitude 6.7, depth 59 km (37 mi)), and April 13, 1949 (magnitude 6.7, depth 50 km (31 mi)). “Not only that, but it moved in completely the opposite direction of what we’ve observed from year to year,” said Anthony Qamar, a University of Washington research associate professor in Earth and space sciences and the state seismologist. 3)Click a second point on the map, this will be the right side of the cross-section. SEATTLE - There were no immediate reports of damage from a magnitude 4.5 earthquake that rattled the Seattle and Puget Sound area early Friday, but it was a reminder the urban area is sitting on . The Trinity Parish Church on First Hill was severely damaged. [8] Most of the property damage occurred very near the epicenter or in unreinforced concrete or masonry buildings, such as those in the First Hill, Pioneer Square, and SoDo neighborhoods of Seattle. This revealed multiple submarine failures on the Puyallup and Duwamish delta fronts. The completion of these efforts allowed for the construction of Seattle's first permanent steel bridges beginning in 1910. Nine bridges included in this book are listed in the National Register of Historic Places. It is recognized in western Washington state that significant seismic hazards are induced on the major populated regions in the Puget Lowland. 3-3 Historic Earthquakes In or Near Western Washington 3-4 Seattle and Puget Sound Faults 4-1 Regional Map of the Cascadia Subduction Zone 4-2 Geologic Interpretation, Central Puget Sound, Section A-A 4-3 Geologic Interpretation, Latitude of Skookumchuck Dam 4-4 Depth of Juan de Fuca Plate The Fourth Avenue Bridge in downtown Olympia was heavily damaged and was later torn down and re-built. Initial damage estimates ranged from a low of $1 billion to as much as $3 billion. Felt Report - Tell Us! Nisqually quake damaged nearly 300,000 Puget Sound area households. Puget Sound Earthquake Origin and Occurrence U.S. Geological Survey The World-Wide Earthquake Locator [20] Soil liquefaction was also observed at the Nisqually National Wildlife Refuge causing damage to the buildings within. PANGA has about 20 permanent global positioning stations running in western Washington and Oregon. Updated Feb 28, 2001, 3:55pm PST. First, it was the only major earthquake in the Puget Sound region in 35 years and the largest in 50 years. The earthquake source was 52 km deep, and the epicenter was located close to the Nisqually River delta in the same location as the epicenter of the magnitude 7.1 earthquake of 1949 (http . [16], Approximately $305 million of insured losses and a total of $2 billion worth of damage was caused in the state of Washington. [17], Many businesses did not receive any aid at all. Quakes larger than M6.0 occurred in 1909, 1939, 1946, 1949, 1965 and 2001. 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