Aus Wikipedia, der freien Enzyklopädie. The earthquake began about 80 km (50 miles) east of the Denali Visitor Center, and ruptured eastward along the Denali Fault, and was followed by thousands of aftershocks. Only data at continuous GPS stations are shown, as these are the instruments that provide daily time-series required to sufficiently constrain displacement rate changes needed to infer the relationship between strain rate and stress during viscoelastic relaxation. 5.0−5.9. The Denali fault earthquake sequence began with the moment magnitude ( MW) 6.7 Nenana Mountain... Landslides and Liquefaction. The entire wiki with photo and video galleries for each article Earthquake SequenceThe Denali fault earthquake sequence began with the moment magnitude (M W ) 6.7 Nenana Mountain earthquake on 23 October 2002 (Fig. Aus Wikipedia, der freien Enzyklopädie. Only … 2003 →. (Photo and interpretation by Wesley K. Wallace, Geophysical Institute, University of Alaska Fairbanks). It started on the previously unrecognized Susitna Glacier Thrust fault, a splay fault south of … PS10 records as well. Study area. The Nenana Mountain and Denali Fault earthquakes generated a vigorous aftershock sequence. In the distance, the rugged peaks of Mts. The 2002 Denali earthquake occurred at 22:12:41 UTC (1:12 PM Local Time) November 3, 2002, with an epicenter 66 km ESE of Denali National Park, Alaska, United States. 2003 →. This 7.9 M w earthquake was the largest recorded in the United States in 37 years (after the 1965 Rat Islands earthquake). Life This event caused significant damage to the transportation systems in central Alaska. This event was followed by numerous aftershocks that defined a 45km-long zone along the Denali fault. This 7.9 M w earthquake was the largest recorded in the United States in 37 years (after the 1965 Rat Islands earthquake). Glaciated mountain belts offer rich and diverse archives of Quaternary environmental change. The earthquake lasted about 100 seconds. The aftershock zone terminates ϳ10 km west of the subsequent M W 7.9 epicenter. 1201. There were reports of triggered seismicity in volcanic and geothermal centers in Washington and California and regional seismicity in Utah. The Mw 7.9 Denali, Alaska earthquake of 3 November, 2002, caused minor damage to at least 20 houseboats in Seattle, Washington by initiating water waves in Lake Union. Earthquakes, Massive Earthquake Along the Sunda Trench, NASA Goddard Space Its epicenter was located on the Denali fault 22 km east of the M 7.9 event epicenter. The shaded-relief image above shows the location of the earthquake, which occurred on the Denali fault alongside the Alaska Range. This topographic map of the South Island, New Zealand, illustrates the location of a large earthquake on September 4, 2010, how geologic activity shaped the region in the past, and why the current geology makes Christchurch vulnerable to earthquake damage. The 2002 Denali Fault earthquake caused changes in the observed motions all across central Alaska. The 2002 M-w 7.9 Denali Fault earthquake, Alaska, provides an unparalleled opportunity to investigate in quantitative detail the regional hillslope mass-wasting response to strong seismic shaking in glacierized terrain. Following the Denali Fault earthquake, the analyst processing load increased from an average of 40 events per day in September to an average of over 400 events per day in November. All measurement sites, including those in the park, initially showed rapid horizontal motions, which have slowed down over time. On November 3, 2002, the Denali Fault ruptured over a distance of 336 km, producing the largest earthquake from a continental strike-slip fault in North America since the 1906 San Francisco earthquake. A six mile stretch of the main highway running between Anchorage and Fairbanks had to be closed after a three-foot-wide fissure opened up in the road. Interior Alaska experiences a globally significant earthquake. The 434 mile slip-strike fault gave off a 7.9 magnitude earthquake. The earthquake epicenter was located near an icefall in a tributary of the West Fork Glacier. EERI Special Earthquake Report — February 2003 Learning from Earthquakes Preliminary Observations on the November 3, 2002 Denali Fault, Alaska, Earthquake This report is based on data collect- ed after the earthquake by a num-ber of teams and individuals, and compiled by John Aho of CH2M Hill in Anchorage, Alaska. The fault appears as a dark arch running across the image. Only earthquakes of magnitude 6 or above are included, unless they result in damage and/or casualties, or are notable for some other reason. 2). Four month of data remain unprocessed at this time (January-April, 2003). Denali National Park is located very close to the Denali fault. It started on the previously unrecognized Susitna Glacier Thrust fault, a splay fault south of the McKinley strand of the Denali fault system (DFS). It was the main fault along which the 2002 Denali earthquake occurred, which was measured as a magnitude of 7.9 M w . Effects of the M7.9 Denali Fault Earthquake on glaciers in the Alaska Range ABSTRACT Offsets resulting from the Denali Fault earthquake in glacial ice have variable morphologies. UAF is an AA/EO employer and educational institution and prohibits illegal discrimination against any individual. The 2002 Denali Fault Earthquake is among the biggest North American quakes on record, its magnitude being the same as that of the 1906 San Francisco Earthquake. Earthquakes. The temporary network was dismantled in June, 2003. Land The shaded-relief image above shows the location of the earthquake, which occurred on the Denali fault alongside the Alaska Range. The largest inland earthquake in North America in almost 150 years struck Alaska on November 3, 2002. This Synthetic Aperture Radar (SAR) interferogram includes the epicenters of the October 23, 2002, and November 3, 2002 Denali Fault earthquakes, which are located at the extreme western end of the fault rupture. From Tarbuck and Lutgens, 2005 Detecting Seismic Waves It is easy to visualize the motion of an ocean wave, and how we might measure its We focus on the main epicentral area of the 2002 Denali earthquake in the … The view is eastward along the main strand of the Denali fault, which is marked here by a prominent linear valley along the southern edge of the Alaska Range. This November 2002 earthquake was one of the largest ever recorded on U.S. soil, and occurred on the Denali-Totschunda fault system, which is one of the longest strike-slip fault systems in the world and rivals in length California’s famed San Andreas strike-slip fault system that spawned the destructive M 7.8 San Francisco earthquake in 1906. The 2002 Denali Fault earthquake (Mw = 7.9) is the largest strike-slip earthquake in North America in more than 150 years. Denali Fault earthquake in November 2002 was the fate of the Trans-Alaska Oil Pipeline, built in the 1970’s. The 2002 Denali earthquake occurred at 22:12:41 UTC (1:12 PM Local Time) November 3 with an epicenter 66 km ESE of Denali National Park, Alaska, United States. Called the Denali Fault earthquake, this shock was the strongest ever recorded in the interior of Alaska. lowing the 2002 Denali earthquake provides a data set from which to draw some robust conclusions regarding the contribution of the various candidate mechanisms and develop a mechanical model of the Alaskan lithosphere. Rupture initiated at 22:12:41.0 UTC on the Susitna Glacier thrust fault before subse-quently transferring onto the Denali fault. This 7.9 M w earthquake was the largest recorded in the United States in 37 years (after the 1965 Rat Islands earthquake). It ruptured three different faults ending with a total rupture length of ~330 km. 434 mile slip-strike fault gave off a 7.9 magnitude earthquake through the pipeline 14 feet horizontally and 2.5 vertically... Holocene alluvial deposits, man-made embankments, and backfills the pipeline 14 feet and... 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