how long was the northridge earthquake
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1994 Northridge earthquake 1994 Northridge earthquake. The 1994 Northridge earthquake occurred on January 17, at 4:30:55 a.m. PST and had its epicenter in Reseda, a neighborhood in the north-central San Fernando Valley region of Los Angeles, California. It had a duration of approximately 10–20 seconds.
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Nepal-size earthquake in California could kill 1,800, study found Nepal-size earthquake in California could kill 1,800, study found. One of the worst natural disasters in U.S. history, the 1906 San Francisco earthquake and subsequent fires killed more than 3,000 people and left the city in ruins. The quake's magnitude has been estimated in recent years at 7.7 to 7.9.
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Cochise College Student Papers in Geology The earthquake was considered a moderate magnitude, but due to its location it caused severe damage. Every earthquake teaches lessons on how to prepare for them in the future, but every earthquake is different and each time the damage is not the same. After the Northridge earthquake, the government took a closer look on how well the structures in California were being built, resulting in new building codes. Works Cited
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- A standard normal distribution table shows a cumulative probability associated with a particular z-score. Table rows show the whole number and tenths place of the z-score. Table columns show the hundredths place. The cumulative probability (often from minus infinity to the z-score) appears in the cell of the table. standard normal distribution table shows a cumulative probability associated with a particular z-score. Table rows show the whole number and tenths place of the z-score. Table columns show the hundredths place. The cumulative probability (often from minus infinity to the z-score) appears in the cell of the table.
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1960 Valdivia earthquake The 1960 Valdivia earthquake or Great Chilean earthquake of 22 May is the most powerful earthquake ever recorded. Various studies have placed it at 9.4–9.6 on the moment magnitude scale. It occurred in the afternoon, and lasted approximately 10 minutes. The resulting tsunami affected southern Chile, Hawaii, Japan, the Philippines, eastern New Zealand, southeast Australia and the Aleutian Islands. The epicenter of this megathrust earthquake was near Lumaco, approximately 570 kilometres ...
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The San Andreas Fault The largest historical earthquakes that occurred along the San Andreas fault were those in 1857 and 1906. The earthquake of January 9, 1857, in southern California apparently was about the same magnitude as the San Francisco earthquake of 1906. According to newspaper accounts, ground movement in both cases was roughly the same type.
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Sections of the San Andreas Fault overdue for major earthquakes Researchers found that three sections of the San Andreas Fault system in Northern California -- Hayward, Rodgers Creek and Green Valley -- are either near or past their average recurrence interval and have accumulated sufficient strain to trigger earthquakes of magnitude 6.8 or greater.
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The 1964 Great Alaska Earthquake and tsunamis: a modern perspective and enduring legacies The magnitude 9.2 Great Alaska Earthquake that struck south-central Alaska at 5:36 p.m. on Friday, March 27, 1964, is the largest recorded earthquake in U.S. history and the second-largest earthquake recorded with modern instruments.
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Big One fears grow as scientists warn Earthquake could cause California to SINK These previously unrecorded, prehistoric quakes were far larger and more devastating than the 1933 earthquake which killed 160. Geologists initially believed major tremors occurred along the Newport-Inglewood fault - which stretches from Beverley Hills to San Diego - every 2,300 years.
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Things You Might Not Have Known About The Northridge Earthquake It's been twenty years since the Northridge Earthquake rocked Los Angeles. We dug into the archives to find pictures and video of the devastation centered in the San Fernando Valley, facts about the temblor and a review how far we've come since then—and how far we have to go when it comes to being prepared for the next biggie.
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10 Biggest Earthquakes in History 1964 Alaska earthquake. The 1964 Alaskan earthquake, also known as the Great Alaskan earthquake and Good Friday earthquake, occurred at 5:36 PM AST on Good Friday, March 27. Across south-central Alaska, ground fissures, collapsing structures, and tsunamis resulting from the earthquake caused about 139 deaths.
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10 Strongest Earthquakes in History The 1960 Valdivia earthquake or Great Chilean Earthquake of Sunday, 22 May 1960 is to date the most powerful earthquake ever recorded in Earth’s history, rating 9.5 on the moment magnitude scale. It occurred in the afternoon and its resulting tsunami affected southern Chile, Hawaii, Japan, the Philippines, eastern New Zealand, southeast Australia, and the Aleutian Islands in Alaska.
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The Great M9.2 Alaska Earthquake and Tsunami of March 27, 1964 The Great M9.2 Alaska Earthquake and Tsunami of March 27, 1964 Map of southern Alaska showing the epicenter of the 1964 Great Alaska Earthquake (red star). Click to view a larger image
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- The tremor was off the coast at Monterey. It was stronger in San Francisco than at some places closer to the epicenter. A second tremor, much like the first, was felt at 5:35 a.m. January 1, 1927 An earthquake in the Imperial Valley wrecked the town of Calexico and started fires.t had also been damaged during the 1957 earthquake. People in San Francisco, 56 miles from the epicenter, felt the earthquake about 23 seconds later than the people in Santa Cruz, 10 miles away. People in Sacramento, 100 miles distant, felt it about 22 seconds later.
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1906 San Francisco earthquake The 1906 San Francisco earthquake struck the coast of Northern California at 5:12 a.m. on April 18 with an estimated moment magnitude of 7.8 and a maximum Mercalli intensity of XI (Extreme).
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1960 Valdivia Earthquake or Great Chilean Earthquake Its waves reached Hawaii in 15 hours and Japan in 22 hours. The 1960 Valdivia earthquake or Great Chilean Earthquake of Sunday, 22 May 1960 is to date the most powerful megathrust earthquake ever recorded on Earth, rating 9.5 on the moment magnitude scale. Megathrust earthquakes generate tsunamis (known as teletsunamis) that can cross entire oceans.
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Magnitude-7.1 quake rocks Alaska, damaging roads and displacing residents Southcentral Alaska was rocked by a strong and prolonged magnitude-7.1 earthquake early Sunday morning, destroying four homes on the Kenai Peninsula and rattling nerves throughout the region. The quake struck at 1:30 a.m., according to the U.S. Geological Survey. The Alaska Earthquake Center said it hit on the west side of Cook Inlet, about 65 miles west of Homer and about 160 miles southwest of Anchorage, at a depth of 76 miles. It was felt from Juneau to Fairbanks.
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- The Biobio Region of Chile has had strong aftershocks of this earthquake. The first one was a magnitude 6.7 MW earthquake that struck off the coast of Biobío, Chile, at 23:21 on 15 March 2010 at the epicenter, at a depth of 18 kilometres (11 mi). The second earthquake struck on land in the region at 22:58 (UTC) on 2 April 2010 at 5.9 MW and at a depth of 39 km.
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- Story highlights. (CNN)A magnitude-4.5 earthquake rattled Southern California on Wednesday morning, though there were no immediate reports of damage or injuries. The tremor struck around 6:42 a.m. (9:42 a.m. ET) about 2 miles north of Banning, the U.S. Geological Survey said.
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- The 1989 Loma Prieta earthquake ended decades of tranquility in the San Francisco Bay region.It was a wakeup call to prepare for the potentially even more devastating shocks that are inevitable in the future. Four Loma Prieta Earthquake Professional Papers, each containing multiple chapters, document the magnitude 6.9 earthquake that shook the San Francisco and Monterey Bay regions.
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Survivors of Italy's devastating earthquake wrap up for a night in the open as frantic search continues for 100 people still trapped in the rubble and death toll rises to 250 In April 2009 a magnitude 6.3 earthquake occurred 28 miles (45km) to the south east of Norcia near the town of L’Aquila. That killed at least 295 people and injured 1,000 while 55,000 people were left homeless.
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An Earthquake in Alaska The earthquake struck Sunday at 1:30 a.m. local time in the area of Old Iliamna, about 162 miles south of Anchorage, said the U.S. Geological Survey. The Alaska Earthquake Center recorded about 30 aftershocks in the first two-and-a-half hours after the quake. The largest, at 3:37 a.m. local time, was measured at magnitude 4.3. There is no threat of a tsunami as a result of the quake. There have been no reports of injuries so far.
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Newly identified fault line in California could unleash monster earthquake In the meantime, areas north of Los Angeles may be long overdue for a whopper of a quake along a portion of the San Andreas fault, according to a second study, this from the U.S. Geological Survey. Over the past 1,200 years, large earthquakes occurred there about every 100 years. The last big one there was a magnitude-7.7 to 7.9 in 1857.
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Alaska hit by 6.2 earthquake The deep quake, which hit at 9:51 a.m. AT (1:51 p.m. ET) and shook for 10 seconds, was centered in the Cook Inlet region, 60 miles west northwest of Willow and 81 miles northwest of Anchorage, the Alaska Earthquake Information Center reported. It was felt in Fairbanks, about 235 miles away, and as far south as Kodiak, Valdez and Seward, more than 300 miles away.
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- The magnitude 6.7 Northridge Earthquake occurred on January 17, 1994 at 4:31 AM, killing more than 60, injuring more than 9,000, and causing widespread damage throughout the west San Fernando Valley. #. Jonathan Nourok/AFP/Getty Images.
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- Answers.com® is making the world better one answer at a time.   The LA earthquake in 1994 , where it happened in NorthRidge , it lasted for the minimum of 15 seconds and the maximum of 20 seconds.   This answer was entered by Tayl…or and Leanne.