If the initial estimate is confirmed, it will be the fifth largest earthquake in recorded history. Fore and aftershocks - Scientists estimate that over 800 earthquakes of magnitude 4.5 or more were recorded following the main earthquake. The earthquake caused a tsunami with waves that exceeded over 120 feet in height which in turn caused nuclear accidents at the Fukushima nuclear power plant. The sounds are real seismic data taken from 8 seismometers on a great circle around the globe, and sped up into the sonic range. 2011 Tōhoku Earthquake and Tsunami In 2011 Japan experienced an earthquake of the magnitude 9.1 which was the most powerful earthquake to ever hit the nation and the world’s fourth most powerful ever recorded in history. Articles from Britannica Encyclopedias for elementary and high school students. https://simple.wikipedia.org/wiki/2011_Tōhoku_earthquake_and_tsunami On May 22, 1960, the largest earthquake in recorded history—magnitude 9.5—struck southern Chile. 1. Photo Credit: Tōhoku Tourism Promotion Organization. This is the fourth largest earthquake The 2011 Tōhoku earthquake off the coast of Japan created a tidal wave 40m high and shifted the entire main island of Honshu east by 2.4m. Magnitude 9.0–9.1 (M w ) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011, with the epicentre approximately 70 km east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately 29 km. And the 2004 magnitude-9.2 Sumatra-Andaman earthquake moved the figure axis by about 7 cm. The March 11, 2011, great earthquake in Japan may have shortened the length of Earth days and shifted its axis. The March 11, 2011, earthquake was the strongest to strike the region since the beginning of record keeping in the late 19th century, and it is considered one of the most powerful earthquakes ever recorded. In addition to Sendai, other communities hard-hit by the tsunami included Kamaishi and Miyako in Iwate; Ishinomaki, Kesennuma, and Shiogama in Miyagi; and Kitaibaraki and Hitachinaka in Ibaraki. It does not provide information on the height nor the strength The 2011 earthquake off the Pacific coast of Tōhoku (東北地方太平洋沖地震, Tōhoku-chihō Taiheiyō Oki Jishin?) Map prepared by the U.S. National Oceanic and Atmospheric Administration depicting the tsunami wave height model for the Pacific Ocean following the March 11, 2011, earthquake off Sendai, Japan. The 2011 earthquake off the Pacific coast of Tōhoku was a magnitude 9.0–9.1 (M w ) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011, with the epicentre approximately 70 km east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately 29 km.wikipedia The megathrust earthquake involved the Juan de Fuca Plate from mid-Vancouver Island, south along the Pacific Northwest coast as far as northern California.The length of the fault rupture was about 1,000 kilometers (620 miles), with an average slip … At 2:45 pm on March 11, 2011, a 9.0 magnitude earthquake rocked Japan. The 11 March 2011 magnitude-9.0 Tohoku-Oki earthquake off the eastern coast of Japan was one of the largest recorded earthquakes in history. The 9.1 magnitude (Mw) undersea megathrust earthquake occurred on 11 March 2011 at 14:46 JST (05:46 UTC) in the north-western Pacific Ocean at a relatively shallow depth of 32 km (20 mi), with its epicenter approximately 72 km (45 mi) east of the Oshika Peninsula of Tōhoku, Japan, lasting approximately six minutes. This magnitude 9.1 earthquake only released about 3 per cent of the energy of a theoretical magnitude 10 quake. 2. As part of his master's program,... Aerial view of damage to a portion of the northeastern coast of Honshu, Japan, following the offshore earthquake and resultant tsunami there on March 11, 2011. As the floodwaters retreated back to the sea, they carried with them enormous quantities of debris, as well as thousands of victims caught in the deluge. Days before, a 7.2 magnitude earthquake with 6.0 magnitude Summary Poster. This is the fourth largest earthquake in the world and the largest in Japan since instrumental recordings began in 1900. On March 11, 2011, a magnitude 8.9 earthquake struck off the east coast of Honshu, Japan, about 130 kilometers (80 miles) east of Sendai. It also shortened the day by 6.8 µs. The sudden horizontal and vertical thrusting of the Pacific Plate, which has been slowly advancing under the Eurasian Plate near Japan, displaced the water above and spawned a series of highly destructive tsunami waves. Although, the recent event ruptured a part of the focal region of the expected earthquake." Finally, some 18 hours after the quake, waves roughly 1 foot (0.3 metre) high reached the coast of Antarctica and caused a portion of the Sulzberger Ice Shelf to break off its outer edge. The epicentre was located some 80 miles (130 km) east of the city of Sendai, Miyagi prefecture, and the focus occurred at a depth of 18.6 miles (about 30 km) below the floor of the western Pacific Ocean. "2011 Miyagi earthquake" redirects here. Aftershocks continued, many exceeding magnitude-7.0. Photo Credit: Tōhoku Tourism Promotion Organization. The March 11 temblor was felt as far away as Petropavlovsk-Kamchatsky, Russia; Kao-hsiung, Taiwan; and Beijing, China. deaths... more, Tohoku earthquake and tsunami data available from NOAA/NGDC (2011), Geomatics, Natural Hazards and Risk, Vol. At 2:45 pm on March 11, 2011, a 9.0 magnitude earthquake rocked Japan. The most powerful earthquake ever recorded to hit Japan (magnitude 9.1) . Japan's 2011 earthquake struck close to the Japan Trench off the coast of Tōhoku at magnitude 9 on March 11. in Japanese studies from the University of Illinois at Urbana-Champaign. The Tōhoku earthquake (9.1 magnitude) hit Japan on March 11, 2011 for a duration of 5 minutes, and was followed by a tsunami which claimed the life of close to 16.000 people. The 2011 Tōhoku earthquake off the coast of Japan created a tidal wave 40m high and shifted the entire main island of Honshu east by 2.4m. 3. View Historic Article Explorer Profile: Navakanesh M Batmanathan, Earthquake Geologist What if you could do something to help people who live in areas that are prone to earthquakes? … The seismic events shown took place on that same day, between 01h41 and 23h59 (GMT). Image of the Day Land Water Human Presence Earthquakes. Omissions? The damages from the earthquake was dramatic. It was measured at 8.4 on the JMA seismic intensity scale The earthquake happened 130 kilometres (81 mi) off Sendai, Miyagi Prefecture, on the east coast of the Tōhoku of Japan, on March 11, 2011 at 05:46:23 UTC.It was at a depth of 24.4 km (15.2 miles). The 11 March 2011 magnitude-9.0 Tohoku-Oki earthquake off the eastern coast of Japan was one of the largest recorded earthquakes in history. The magnitude was 9. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The sounds are real seismic data taken from 8 seismometers on a great circle around the globe, and sped up into the sonic range. 2011 Tōhoku earthquake and tsunami The 2011 earthquake off the Pacific coast of Tōhoku (東北地方太平洋沖地震, Tōhoku-chihō Taiheiyō Oki Jishin ) was a magnitude 9.0–9.1 (Mw) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC ) … Let us know if you have suggestions to improve this article (requires login). Fore and aftershocks - Scientists estimate that over 800 earthquakes of magnitude 4.5 or more were recorded following the main earthquake. The epicentre was located130 km east of the city Sendai, and affected countries around the world. I would suggest adding a section on earthquake magnitude at Fukishima, which was apparently 6.8 and i woud add a section on damage at Fukishima 2 Daiini which went unstable but is back in control now.-- Patbahn 00:12, 19 March 2011 (UTC) Transport - Kesennuma Line. This is because the magnitude of the earthquake was small, and the source area, which was estimated from the aftershock distribution and seismic waves, didn't cover the whole expected source region. According … At 0.5X animation speed, 1 second of animation = 1 hour in real time. Hayes et al. The earthquake was caused by the rupture of a stretch of the subduction zone associated with the Japan Trench, which separates the Eurasian Plate from the subducting Pacific Plate. The M 8.6 earthquake of March 2, 1933, produced tsunami waves as high as 29 m on the Sanriku Coast and caused more than 3,000 fatalities. Image of the Day for March 12, 2011. The Tohoku earthquake, the whole world had shaken the whole world. Please select which sections you would like to print: Corrections? But don't worry—you won't notice the difference. It generated waves 11 to 12 feet (3.3 to 3.6 metres) high along the coasts of Kauai and Hawaii in the Hawaiian Islands chain and 5-foot (1.5-metre) waves along the island of Shemya in the Aleutian Islands chain. Wikipedia Impact Summary; Technical Summary; USGS Audio CoreCast Interview with Evelyn Roeloffs - Effect on Water Levels in … For conciseness, only earthquakes with magnitudes greater than 7.0 or an intensity greater than lower-6 on the shindo scale are listed here. Ken Pletcher was Senior Editor, Geography and History for Encyclopædia Britannica. Image of the Day Land Water Human Presence Earthquakes The Tōhoku Earthquake was a magnitude-nine earthquake that struck the northeastern coast of Japan. The magnitude-9.0 earthquake struck at 2:46 pm. Get a Britannica Premium subscription and gain access to exclusive content. 2. The tsunami raced outward from the epicentre at speeds that approached about 500 miles (800 km) per hour. 4. Updates? It was later reported that a satellite orbiting at the outer edge of Earth’s atmosphere that day had detected infrasonics (very low-frequency sound waves) from the quake. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Here’s a look at the earthquake and tsunami that struck Japan in March of 2011.. March 11, 2011 - At 2:46 p.m., a 9.1 magnitude earthquake takes place 231 … The earthquake shifted Earth on its axis of rotation by redistributing mass, like putting a dent in a spinning top. More than 127,000 buildings collapsed and almost 16,000 people died. The 2011 Tōhoku earthquake and tsunami was a 9.0-magnitude earthquake followed by tsunami waves. The tsunami also instigated a major nuclear accident at a power station along the coast. Here are some of the amazing facts about the Japan earthquake and tsunami. A magnitude-9.0 earthquake struck off Japan’s northeastern coast. Map of the northern part of Japan's main island of Honshu depicting the intensity of shaking caused by the earthquake of March 11, 2011. The effects of the earthquake were great devastation for the city of Santai. It was preceded by several foreshocks, including a magnitude-7.2 event centred approximately 25 miles (40 km) away from the epicentre of the main quake. Our editors will review what you’ve submitted and determine whether to revise the article. Contact Your Close Friends and Loved Ones THE 2011 JAPAN TSUNAMI The 2011 earthquake off the Pacific coast of Tōhoku was a magnitude 9.0–9.1 (M w) undersea megathrust off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011, with the epicentre approximately 70 kilometres (43 mi) east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth … The magnitude-9.0 earthquake struck at 2:46 pm. This magnitude 9.1 earthquake only released about 3 per cent of the energy of a theoretical magnitude 10 quake. How it Began. 2 (4), p. 305-323, DOI:10.1080/19475705.2011.632443 (Paula Dunbar, Heather McCullough, George Mungov, Jesse Varner, and Kelly Stroker), Majority of the deaths and missing are within the Iwate, Miyagi and Fukushima prefectures, Tohoku earthquake and tsunami data available from NOAA/NGDC, IOC/UNESCO Bulletin on Tohoku Earthquake and Tsunami Deaths, International Tsunami Information Center, Tohoku Tsunami, PMEL National Center for Tsunami Research, Tohoku Tsunami. The earthquake and tsunami. The earthquake triggered powerful tsunami waves that reached heights of up to 40.5m in Miyako in Tōhoku's Iwate Prefecture, and traveled up to 10km inland. For conciseness, only earthquakes with magnitudes greater than 7.0 or an intensity greater than lower-6 on the shindo scale are listed here. (Nearly two years later, on December 7, 2012, a magnitude-7.3 tremor originated from the same plate boundary region. This is the most devastating earthquake to occur in Japan since the 1995 Kobe earthquake caused over 5,500 deaths and This is the deadliest tsunami (The early estimate of magnitude 8.9 was later revised upward.) The Fukushima Daiichi Nuclear Power Plant cooling system was damaged, raising fears of a meltdown. since the 2004 magnitude 9.1 Sumatra earthquake and tsunami caused nearly 230,000 deaths and $10 billion in damage. The 1700 Cascadia earthquake occurred along the Cascadia subduction zone on January 26, 1700 with an estimated moment magnitude of 8.7–9.2. Several hours later 9-foot (2.7-metre) tsunami waves struck the coasts of California and Oregon in North America. Five million tons of material and debris from Japan were swept out to the Pacific Ocean by the tsunami. (The early estimate of magnitude 8.9 was later revised upward.) 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