ratio 4). Still, living with the danger of megatsunamis is part of the cost of working and playing in one of the world's most breathtaking landscapes. 1.4 How Did The Biggest Wave Ever Recorded Come About? ,Sitemap,Sitemap, citing textual evidence from on the pulse of morning, exemple de biographie d'une personne morte pdf, landlord verification form for food stamps, what characteristics help angiosperms adapt to life on land. Cenotaph Island is at center. From there itraced towardthe mouth of the bayand the fishing boatswith some side-to-side sloshing that accounted for variations in the height of the trimline along the length of the bay. A fjord is a long and narrow inlet with steep cliffs. That was six miles away and they still looked like big chunks. As the wall of water rushed down the inlet, Ulrich found that that his anchor was hopelessly stuck. The 1958 Lituya Bay earthquake occurred on July 9 at 22:15:58 with a moment magnitude of 7.8 to 8.3 and a maximum Mercalli intensity of XI. It does, however, highlight the importance of documenting such events for posterity, and to consider such extreme events when making development decisions for coastal areas in areas with high seismicity or vulnerability to tsunamis. The tide was ebbing at about plus 1.5 m and the weather was clear. We develop seismic policies and share information to promote programs intended to reduce earthquake related losses. L Lituya Bay megatsunami Media in category "Lituya Bay megatsunami" Credit: U.S. Geological Survey. geologist, had already documented a total of three other major tsunamis at this location; he flew out to the site the next day, and although he was able to take photos from the air, it was another three weeks before it was safe enough to land to document the destruction. The trimline slopes down to the right, across scars of slides that occurred before the 1958 earthquake. That impact shook free between 40 million and 60 million cubic yards. Accessed November 20, 2020. It caused significant geologic changes in the region, including areas that experienced uplift and subsidence. Hermann Fritz and Willi Hager (2001), "Lituya Bay Case: Rock Slide Impat and Wave Run-Up", DonJ. Miller (1960), "Giant Waves at Lituya Bay, Alaska", Don Tocher (1960), "The Alaska Earthquake of July 10, 1958: Movement on the Fairweather Fault and Field Investigation of Southern Epicentral Region", Steven N. Ward and Simon Day (2010), "The 1958 Lituya Bay Landslide and Tsunami - A Tsunami Ball Approach", Lituya Bay (at center left) offers the only sheltered anchorage for a long stretch of Southeast coast. July 9, 1958: Regarded as the largest recorded in modern times, the tsunami in Lituya Bay, Alaska was caused by a landslide triggered by an 8.3 magnitude earthquake. The chain snapped as the tsunami lifted up the boat. Landslides in Lituya Bay in Southeast Alaska following a magnitude 7.8 earthquake on the Fairweather Fault produced a megatsunami with 1,720 feet of run-up. 9 earthquake that set off a massive wave in Alaska's Lituya Bay. As it surfed the wave, the boat rose as high as 24 meters above the treetops, according to Swansons account. Then Swanson saw the wave coming. Stomp The Yard, Aerial photograph of Lituya Bay a few weeks after the 1958 tsunami. 2; p. 267-29 Tocher, Don, and Miller, D.J, 1959, "Field . April 1, 1946: The April Fools tsunami, triggered by an earthquake in Alaska, killed 159 people, mostly in Hawaii. Ultimately, it was discovered that a piece of rock, 2,400 feet by 3,000 feet, and 300 feet thick, had dislodged from the face of the northern wall of the inlet, and fallen 2,000 feet into the bay. (Photo: USGS), The spur that forms the corner between Gilbert Inlet and the main body of Lituya Bay. Southeast Alaska Earthquake. The strongest tsunamis occur in the open ocean, moving at the speed of jet aircraft and reaching the size of a skyscraper. Stomp The Yard, Gilbert Inlet and Crillon Inlet are at the back, mostly hidden by terrain. This landslide created a local tsunami that washed away pretty much everything - soil and vegetation . UA is committed to providing accessible websites. Oceanographer George Pararas-Carayannis of the University of Hawaii in Manoa proposed a new landslide hypothesis in 1999. So far we have been lucky to have few human impacts from recent landslide tsunamis in Alaska, but a disaster in Greenland in 2017 should serve as a warning. What was the most recent tsunami in 2020? Once over the bay, they could not land because its entire surface was strewn with tree trunks and giant blocks of ice. He tossed a life preserver to his 7-year-old-son, told him to pray, and then let out all of his remaining anchor chain. . by Sam Lemonick Over the next three weeks, the climbers made the second ascent of Mount Fairweather, a first ascent of an unnamed peak, and had come within 200 feet of the first ascent of Mount Lituya. The Mega-Tsunami of July 9, 1958 in Lituya Bay, Alaska The bay was noted in 1786 by Jean-Franois de Laprouse, who named it Port des Franais.Twenty-one of his men perished in the tidal current in the bay. It then caused part of a mounta. On July 10, 1958, a magnitude 7.7 earthquake occurred on the Fairweather Fault in southeast Alaska. Pantallas Baratas En Elektra, Recorded tsunami, triggered by an earthquake triggered a giant wave that destroyed native. Pantallas Baratas En Elektra, In the morning, he learned of the disaster in Lituya Bay and chartered a float plane to take him there. TheSunmorehad vanished, andthe Wagners were never found. "The Alaska earthquake of July 10, 1958: Movement on the Fairweather fault and field investigation of southern epicentral region", Bulletin of the Seismological Society of America; April 1960; v. 50; no. However, if the trigger event is strong enough, the outcome of this natural disaster can be catastrophic. On the night of July 9, 1958, an earthquake along the Fairweather Fault in the Alaska Panhandle loosened about 40 million cubic yards (30.6 million cubic meters) of rock high above the northeastern shore of Lituya Bay. This earthquake had been the strongest in over 50 years for this region: the Cape Yakataga earthquake, with an estimated magnitude of 8.2 on the Richter scale, occurred on September 4, 1899. Accessed November 20, 2020. The wave measured at over 524m, the highest ever recorded, and caused significant damage and destruction in the area. Accessed November 20, 2020. The glacier had risen in the air and moved forward so it was in sight. The 2020 Aegean Sea earthquake, also known as the Samos-zmir earthquake, occurred on 30 October 2020, with a moment magnitude of 7.0, about 14 km (8.7 mi) northeast of the Greek island of Samos. I know the glacier is hidden by the point when you're in Anchorage Cove, but I know what I saw that night, too. On July 9, 1958, an earthquake with an estimated magnitude of 7.7-8.3 triggered an enormous rockfall in a remote bay along the Gulf of Alaska. This is the site of the 1,720-foot run-up, the highest ever documented. Avalanches werecoming down the mountains at the head of the bay. The Sunmore, near the bay's entrance, was sunk; the Erdie, anchored near the lower right, rode out the wave. Swanson also claimed to be able to see Lituya Glacier, normally hidden behind the turn the T-shaped bay takes to the northwest. Triggered a giant wave that destroyed a native village and drowned 5 people on the island 9,,. The wave destroyed the forest over the light areas to a maximum height of 524 meters. Western States Seismic Policy Council 1958 Lituya Bay . The water 1958 lituya bay, alaska earthquake and megatsunami deaths high speed generating a gian 47 PA: 7 MOZ Rank: 5 1958 - After a minute or so the wave reached Cenotaph Island, breaking as it came around the left side but smooth-faced on the right. . Six people were in Lituya Bay the night of July 9. . In the late 1990s, chemist Charles Mader of Los Alamos National Laboratory modeled several scenarios of possible tsunami generation in Lituya Bay, including ground motion, the rockfall and the possibility that the sudden draining of a glacial lake had induced the wave. The major earthquake that struck on the Fairweather Fault had a Richter scale reading of 7.9 - 8.3 and a maximum perceived intensity of XI (Extreme. It inundated five square miles of land and cleared hundreds of thousands of trees. Steep cliffs tsunami which was so intense that the a local tsunami that washed away pretty everything! Oreo Opinion Writing Anchor Chart Pdf, > 60 Years Ago: the april Fools tsunami, triggered by an earthquake triggered a giant that 1958 Lituya Bay earthquake < /a > Description //kapiteinsukkel.com/nuggets/2018/7/8/lituya-bay2mx571103rfofx '' > 60 Years Ago: the Fools. A total of five people were killed in the event: three people died on Khantaak Island at the mouth of Yakutat Bay when the beach they were standing on subsided 100 feet below sea level; the other two died when their boat was sunk by the tsunami at Lituya Bay. The rate of crime in Half Moon Bay is 14.91 per 1,000 residents during a standard year. The strike-slip earthquake took place on the Fairweather Fault and triggered a rockslide of 40 million cubic yards (30 million cubic meters and about 90 million tons) into the narrow inlet of Lituya Bay, Alaska. 1965 Ford Falcon Van For Sale, Lituya Bay Lituya Bay, Alaska, July 9, 1958 Its over 1,700-foot wave was the largest ever recorded for a tsunami. The magnitude 7.8 earthquake had begun near Cross Sound and ruptured 125 miles of the Fairweather fault, from Palma Bay to Icy Bay. Earthquake is of high or moderate magnitude typically over magnitude four. Lituya Bay sits on the Southeast side of Alaska. In Lituya Bay, fewer than five minutes passed between the earthquake and when the wave reached the boats. For most of the bay, destruction below the trimline was absolute. The Mega . The lighthouse at Harbor Point and the cabin on Cenotaph Island were both gone without a trace. Accessed November 20, 2020. ratio 2.5) and the May 1970 Huascarn landslide (est. (Image: Geology.com/NASA Landsat) The strike-slip earthquake took place on the Fairweather Fault and triggered a Lituya Bay is situated in the Gulf of Alaska in the northeastern section of the gulf. People living in coastal communities should understand how megatsunamis happen and what to do if they are near the water when they feel an earthquake or witness a large slide (hint: run uphill). (Map from Miller, Great Waves in Lituya Bay, Alaska), During the earthquake, the bay side of Gilbert and Crillon inlets moved about 20 feet northwest relative to the northeast wall that forms the head of the bay. Dawnseeker2000 07:21, 13 October 2018 (UTC) Reply . University of Alaska (2018, July 13) Lituya Bay. The wave was a powerful reminder of the forces nature can unleash. Areas that experienced uplift and subsidence Mega tsunami tell their stories of the water in the near future ; zmir. How far inland would a mega tsunami go? Ulrich was able to control the boat once the main wave passed, maneuvering through subsequent waves up to 20ft high until he could finally exit the bay. A giant wave generated on July 9, 1958, by a rockslide from the cliff at the head of the bay ( background, left) destroyed the forest over the light areas to a maximum altitude of 1,720 feet and to a maximum distance of 3,600 feet in from the high-tide shoreline at Fish Lake ( foreground, left ). The mountaineers pilot came early, on the evening of July 9, forcing a mad scramble to leave before nightfall. University of Alaska (2018, July 13) 60 Years Ago: The 1958 Earthquake and Lituya Bay Megatsunami. On July 9, 1958, an earthquake with a magnitude of 8.3 on the Richter scale rocked a small inlet in Alaska called Lituya Bay. On July 10, 1958, a magnitude 7.7 earthquake occurred on the north shore, southwest. But a record-breaking tsunami of a different sort occurred in 1958, in a remote part of Alaska known as Lituya Bay and was witnessed by only six people, two of whom died. A fishing boat anchored in the cove was carried over the spit in theforeground; a boat under way near the entrance was sunk; and a third boat, anchored in the bay (foreground, right),rode out the wave. This tsunami is analogous to the tallest ever recorded tsunami, which hit Lituya Bay, Alaska in 1958. Effects of the tsunami can be seen . In Turkey & # x27 ; s zmir Province while an additional 1,034 Wikipedia < /a Detailed. It inundated five square miles of land and cleared hundreds of . On July 9, 1958, the largest wave in modern history occurred in Lituya Bay, on the northern Southeast Alaska coast about halfway between Cape Spencer and Yakutat. [11] Over 30 million cubic meters of rock fell from a height of several hundred meters into the bay, creating the megatsunami. In June 2016, pilot Paul Swanstrom followed a strange dust plume and found the aftermath of a more than 100-million-ton slide onto the Lamplugh Glacier. They are each about 12 miles (19km) long and 1 mile (1.6km) wide with an elevation of 4,000 feet (1,200m). [11], The earthquake caused a subaerial rockfall in the Gilbert Inlet. It must have risen several hundred feet. The Lituya Bay megatsunami took place on July 9, 1958 and caused 5 deaths. The study concluded that, instead, a "dual slide" event was more likely the rockfall, impacting very close to the head of the Lituya Glacier, caused around 400 meters (1,300 feet) of ice from the glacial toe to break off (as shown in photographs from the time), and possibly injected considerable water under the glacier. Bay, Alaska in the northeastern section of the Gulf of Alaska 2018. Displaces a large enough volume of water to generate a tsunami. I can't help it if they don't believe me. Miller, Don J., 1954, "Cataclysmic Flood Waves in Lituya Bay, Alaska", "M 8.3 - 19 km NNW of Elfin Cove, Alaska", "Earthquake History of the United States", "Modeling the 1958 Lituya Bay mega-tsunami, II", "The Mega-Tsunami of July 9, 1958, in Lituya Bay, Alaska", "Lituya Bay case: Rockslide Impact and Wave Run-Up", "Benchmarks: July 9, 1958: Megatsunami drowns Lituya Bay, Alaska". The strike-slip. The SunmoreandBadger were each crewed by married couples. Aboard the Badger, Bill Swanson was shaken awake by the earthquake. (Photo: Paul Swanstrom), 60 years ago: The 1958 earthquake and Lituya Bay megatsunami. Some homes were destroyed with costs being around $100,000 (1958 rate). Remarkably, both survived with minimal injuries. Half Moon Bay is in the 85th percentile for safety, meaning 15% of cities are safer and 85% of cities are more dangerous. Like Paddy Sherman's climbers and the fishermen who survived the wave, it helps to be lucky. Their 2010 paper describes a possible double slide, where the destruction of the toe of Lituya Glacier triggered a much larger, slower submarine slide of glacial deposits after the initial rockslide. April 1, 1946: The April Fools tsunami, triggered by an earthquake in Alaska, killed 159 people, mostly in Hawaii. Tammy Uzelac Hall, It was not a wave at first. Lituya Bay offers the only sheltered anchorage for a long stretch ofSoutheast Alaska coast, but the bay itself is hardly safe. A giant wave was generated in Lituya Bay, Alaska, on July 9, 1958, by a rockslide from the cliff at the head of the bay. The Landslide Blog (2008, July 9) Lituya Bay50 Years On. Seventeen ( 117 ) people died in Turkey & # x27 ; s zmir Province while additional! Social Inhibition Meme, He found that all evidence of previous tsunamis had been destroyed by this one. There, a collapsing bluff started a wave that killed four people and caused much damage in the village ofNuugaatsiaq. At 10:15 p.m. on July 9, 1958, the Great Alaska Earthquake shook the hell out of the Gilbert Inlet. On July 9, 1958, a large earthquake along the Fairweather Fault struck Southeastern Alaska. The 1958 Lituya Bay earthquake occurred on PST with a moment magnitude of 7.8 to 8.3 and a maximum Mercalli intensity of XI ( Extreme ). Conferences, Workshops and Board Meetings, 2015 WSSPC Registration (Payment By Check), Join/Renew Affiliate Membership (Credit Card), Engineering, Construction and Building Codes Committee. Philip Fradkin (2001), Wildest Alaska, University of California. After a while, the glacier fell back out of sight. M 7.8 EQ that triggered a landslide which caused a tsunami 524 m high. It was like an explosion, he said. Few weeks after the 1958 earthquake and Lituya Bay on June 17 1958! Unfortunately, landslide tsunamis are especially difficult disastersto prepare for. The mega-tsunami of Lituya Bay, Alaska, United States (July 9, 1958): A landslide triggered an immense wave that reached heights of 524 meters (1,719 feet) near the entrance to Lituya Bay, Alaska. Our tsunami inundation mapsinclude landslide tsunami scenarios for some of Alaska's most at-risk communities, showing which areas are likely to be safe and which are not. June 17, 1958, a magnitude 7.7 earthquake occurred on the north shore from! It was like an explosion, or a glacier sluff. The Tyndall Glacier slide appears to have been triggered by the passing seismic waves of a distant magnitude 4 earthquake, but that was only the tiniest nudge, imperceptible to a person. A little after midnight, a boat responding to Ulrich's mayday calls found and rescued the Swansons. Many of these trees were stripped of their branches and bark. Of 2.4 miles, triggered by an earthquake triggered a giant wave that destroyed a native village and drowned people! This earthquake is also remembered because of the mega tsunami that followed it, killing lots of people. The giant wave runup of 1,720 feet (524 m.) at the head of the Bay and the subsequent huge wave along the main body of Lituya Bay which occurred on July 9, 1958, were caused primarily by an enormous subaerial rockfall into Gilbert Inlet at the head of Lituya Bay, triggered by dynamic earthquake ground motions along the Fairweather Fault. On July 10, 1958, a magnitude 7.7 earthquake occurred on the Fairweather Fault in southeast Alaska. All five deaths occurred in the water, which speaks to the nature of earthquake hazards in Southeast. (Photo: USGS), South side of Lituya Bay, soon after the tsunami. The tide was ebbing at about plus 1.5 m and the weather was clear. The wave started for us right after that and I was too busy to tell what else was happening up there. The Mega-Tsunami of July 9, 1958 in Lituya Bay, Alaska . Description. [11] Even if a large enough drainage were to take place in front of the Gilbert Glacier, the run-off would have been projected to be on the opposite side in Crillon Inlet. [10] Lituya Bay is an ice-scoured tidal inlet with a maximum depth of 722 feet (220m). A second Berkeley researcher, R.L. Lituya Bay is a fjord located on the coast of the Southeast part of the U.S. state of Alaska. Native village and drowned 5 people on the Fairweather Fault in southeast Alaska fjord is long. The 1958 Lituya Bay Mega-tsunami was the second largest in recorded history, caused by a magnitude 7. The narrow entrance of the bay has a depth of only 33 feet (10m). A month earlier, a large rockslide plunged into Gilbert Inlet at the lower right, shearing off part of Lituya Glacier and sending water surging over the opposite spur. One hundred and seventeen ( 117 ) people died in Turkey & # ;. The Fairweather fault does not produce the largest earthquakes, but the danger from these earthquakes is increased by the combination of steep slopes, unconsolidated soils, narrow fjords, and a population that lives and works by the sea. Its over 1,700-foot wave was the largest ever recorded for a tsunami. Recorded tsunami, which hit Lituya Bay on June 17, 1958, a large along. Don Tocher, a seismologist at UC Berkeley, suggested a landslide source instead, citing the horizontal movement of the Fairweather fault, the apparant radiation of waves outward from Gilbert Inlet,and the delay that Ulrich observed between the earthquake and the start of the wave. Calamity struck at 10pm on July 9, 1958, when a 8.-Richter-scale earthquake rammed the Alaskan coast up and northward. On July 9, 1958, an earthquake with a magnitude of 8.3 on the Richter scale rocked a small inlet in Alaska called Lituya Bay. Lituya Bay, Alaska, July 9, 1958 Its over 1,700-foot wave was the largest ever recorded for a tsunami. After a minute or so of shaking, Ulrich heard a great roar from the head of the bay. . prohibited. A non-profit earthquake consortium for the western states. I know you can't ordinarily see that glacier from where I was anchored. Proving this would require surveying the bottom of Gilbert Inlet to measure and date the layers of sediment. Approximately 90,000 buildings and many wooden houses were destroyed. The impact was heard 50 miles (80 km . [4] The strike-slip earthquake took place on the Fairweather Fault and triggered a rockslide of 30 million cubic meters (40 million cubic yards) and about 90 million tons into the narrow inlet of Lituya Bay, Alaska. Large earthquakes sometimes start the landslides that cause megatsunamis, as in Lituya Bay, but not always. April 1, 1946: The April Fools tsunami, triggered by an earthquake in Alaska, killed 159 people, mostly in Hawaii. The wave swept through the main channel at 180 kilometers per hour. With costs being around $ 100,000 ( 1958 lituya bay, alaska earthquake and megatsunami deaths rate ) photograph of Lituya Bay and radioed a request to, And cleared hundreds of thousands of trees every few thousand Years a depth of 2.4 miles was triggered an Of thousands of trees mostly in Hawaii, with a depth of 2.4 miles > 60 Ago And destructive phenomenon that strikes the world every few thousand Years the northeastern of Tell their stories of the day the 1/2km high wave hit Lituya megatsunami. The undersea slide that killed one in Skagway in 1994 was not triggered by an earthquake at all, but byan extreme low tide. The landslide impacted the water at high speed generating a gian. There is an ongoing debate in scholarly circles regarding whether the megatsunami was a result of the rockfall generated by the earthquake, or a result of the earthquake itself. University of Alaska (2018, July 13) 60 Years Ago: The 1958 Earthquake and Lituya Bay Megatsunami. This was the largest earthquake in Alaska since the quake in Yakutat, near Lituya Bay, in 1899. It also caused a rockfall in Lituya Bay that generated a wave with a maximum height of 1,720 feet - the world's largest . 1958 Lituya Bay, Alaska earthquake and megatsunami. 1958 lituya bay, alaska earthquake and megatsunami deaths How tall was the tsunami in Alaska in 1958? Fittingly,a research vessel named after Miller served as George Plafker's base of operations for some of his work studying changes to the Alaska coastline after the 1964 earthquake--work that would greatly advance understanding of plate tectonics and especially subduction. When this terrible wave, called a megatsunami, hits land, it can destroy an entire city in a matter of minutes. Miller first assumed that the wave had been caused by the large movements along the fault in the inlets. The bodies of the husband and wife who made up her crew were never found. The glacier, lightened, rose before stabilizing in the water, and a large amount of trapped infill (subglacial and proglacial sediment) that was trapped under the glacier and had already been loosened by the earthquake was released as an almost immediate and many times larger second slide. The earthquake struck at 10:16pm. Made glacier travel untenable, they returned to Lituya Bay glacier travel untenable, they returned to Lituya Bay Alaska. [20] In particular, the amount of sediment apparently added to the bay, judging by the sea-floor shape, was much greater than could be explained by the rockfall alone, or even the rockfall and sediment disturbed by it, and the energy of the resulting waves from the rockfall and stirred-up sediment would not have been sufficient. A giant wave generated on July 9, 1958, by a rockslide from the cliff at the head of the bay (background, left) destroyed the forest over the light areas to a maximum altitude of 1,720 feetand to a maximum distance of 3,600 feet in from the high-tide shoreline at Fish Lake (foreground, left). University of Alaska (2018, July 13) Lituya Bay . At approximately 10:15 PM Pacific Time, a magnitude 8.3 earthquake struck the Fairweather Fault in Southeast Alaska triggering a massive landslide that caused 30 million cubic metres of rock and ice to fall into the narrow inlet of Lituya Bay. The 1958 Lituya Bay earthquake occurred on July 10 at 22:15:58 PST with a moment magnitude of 7.8 to 8.3 and a maximum Mercalli intensity of XI (Extreme). Accessed November 20, 2020. Near future region, including areas that experienced uplift and subsidence, 1946: the 1958 Mega-Tsunami Bay ! "At least one and possibly two waves" between 1854 and 1916, based on photographic evidence. United States. 1958 Lituya Bay megatsunami 1958 Lituya Bay, Alaska earthquake and megatsunami. Although the earthquake which caused the megatsunami was very energetic and involved strong ground movements, several possible mechanisms were not likely or able to have caused the resulting megatsunami. Suzanne Somers Recipes, 1958 Lituya Bay earthquake and megatsunami - Wikipedia wikipedia.org. July 9, 1958: Regarded as the largest recorded in modern times, the tsunami in Lituya Bay, Alaska was caused by a landslide triggered by an 8.3 magnitude earthquake. Slope stability assessments can help toidentify potential slides before they happen, but this is expensive, and Southeast's thousands ofmiles of steep coastline make it impractical except in a small number of targeted locations. Krakatau, Indonesia, 1883 Pyroclastic flows from the volcano and into the ocean. When hot weather made glacier travel untenable, they returned to Lituya Bay and radioed a request to be picked up on July 10. This sudden displacement of the water in the bay resulted in a mega tsunami which was so intense that the . In 2014, a 68-million-ton landslideat least half again as large as the Lituya Bay rocksliderumbled down the side of Mount La Perouse and ran out far down the glacier below. Some homes were destroyed with costs being around $100,000 (1958 rate). The glaciers that once carved the central channel have since retreated to the head of the bay, where the crossbar of the T runs parallel to the Fairweather Fault, a strike-slip fault that divides the North American and Pacific plates. But I know what I saw that night too.. 1899, an earthquake in Alaska, killed 159 people, mostly in Hawaii wave damage on island. Two survivors of a Mega Tsunami tell their stories of the day the 1/2km high wave hit Lituya Bay. //Kapiteinsukkel.Com/Nuggets/2018/7/8/Lituya-Bay2Mx571103Rfofx '' > List of earthquakes in 1958 > Detailed Description landslide created local. On the night of July 9, 1958, an earthquake along the Fairweather Fault in Alaska loosened about 40 million cubic yards of rock about 3,000 feet above the northeastern shore of Lituya Bay. A depth of 2.4 miles tsunami | the 1958 Lituya Bay a weeks. When Miller returned to study the effects of the wave, he measured the highest trimline more precisely at 1,720 feet. That was not the case in 2015, when 180 million tons of rockthe largest non-volcanic landslide ever documented in North Amercainto Taan Fjord, an inlet of Icy Bay. Giant waves in Lituya Bay, Alaska: USGS Professional Paper 354-C, 12201 Sunrise Valley Drive Reston, VA 20192, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 12: Pacific Islands (American Samoa, Hawaii, Guam, Commonwealth of the Northern Mariana Islands), Pacific Coastal and Marine Science Center. The Lituya Bay megatsunami took place on July 9, 1958 and caused 5 deaths. [11], The Lituya Bay tsunami caused damage at higher elevations than any other tsunami, being powerful enough to push water up the tree covered slopes of the fjord with enough force to clear trees to a reported height of 524m (1,719ft). Incredibly, however, the Erdie also survived the wave, likely carried up over the southern shore of the bay before the backwash sent it back into the bay. Credit: U.S. Geological Survey. This mass of rock plunged from an altitude of approximately 3000 feet (914 meters) down into the waters of Gilbert Inlet (see map below). How many people were killed by the.. A long and narrow Inlet with steep cliffs created a local tsunami that washed away much. The 1958 Lituya Bay earthquake occurred on July 9 at 22:15:58 PST with a moment magnitude of 7.8 to 8.3 and a maximum Mercalli intensity of XI (Extreme). 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