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圖片: n-tv.de
- 2:46 p.m. March 11, 2011 A massive magnitude 9.0 earthquake struck off the coast of the northeastern Tohoku region, triggering a devastating tsunami more than 10 meters high. A subsequent power outage at the Fukushima Daiichi nuclear power plant led to meltdowns in three reactors and the release of massive amounts of radiation.
www3.nhk.or.jp/nhkworld/en/news/backstories/3139/
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What happened during the 2011 Tohoku earthquake & tsunami?
What was the magnitude of the 2011 Great East Japan earthquake?
What happened in Japan in 2011?
How long has Japan been affected by the Great East Japan earthquake?
What happened in Japan after a record earthquake and tsunami?
How did the Tohoku earthquake cause a tsunami?
On 11 March 2011, at 14:46 JST (05:46 UTC), a Mw 9.0–9.1 undersea megathrust earthquake occurred in the Pacific Ocean, 72 km (45 mi) east of the Oshika Peninsula of the Tōhoku region. It lasted approximately six minutes and caused a tsunami.
- Overview
- The earthquake and tsunami
The magnitude of the earthquake that caused a devastating tsunami in 2011 was 9.0. The earthquake occurred at 2:46 PM on March 11.
Where was the epicenter of the Great Sendai Earthquake?
The 2011 earthquake's epicenter was located some 80 miles (130 km) east of Sendai, Miyagi prefecture, and the focus occurred 18.6 miles (about 30 km) below the floor of the western Pacific Ocean.
What was the death toll of the earthquake and tsunami that struck Japan in 2011?
The official total for the number of those confirmed dead or listed as missing from the 2011 disaster was about 18,500. Other estimates gave a final toll of at least 20,000. The great majority of those killed were drowning victims of the tsunami waves.
What effects did the Japan earthquake and tsunami of 2011 have?
The magnitude-9.0 earthquake struck at 2:46 pm. (The early estimate of magnitude 8.9 was later revised upward.) 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. 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. (Some geologists argue that this portion of the Eurasian Plate is actually a fragment of the North American Plate called the Okhotsk microplate.) A part of the subduction zone measuring approximately 190 miles (300 km) long by 95 miles (150 km) wide lurched as much as 164 feet (50 metres) to the east-southeast and thrust upward about 33 feet (10 metres). The March 11 temblor was felt as far away as Petropavlovsk-Kamchatsky, Russia; Kao-hsiung, Taiwan; and Beijing, China. 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. Hundreds of aftershocks, dozens of magnitude 6.0 or greater and two of magnitude 7.0 or greater, followed in the days and weeks after the main quake. (Nearly two years later, on December 7, 2012, a magnitude-7.3 tremor originated from the same plate boundary region. The quake caused no injuries and little damage.) 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. 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.
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. A wave measuring some 33 feet high inundated the coast and flooded parts of the city of Sendai, including its airport and the surrounding countryside. According to some reports, one wave penetrated some 6 miles (10 km) inland after causing the Natori River, which separates Sendai from the city of Natori to the south, to overflow. Damaging tsunami waves struck the coasts of Iwate prefecture, just north of Miyagi prefecture, and Fukushima, Ibaraki, and Chiba, the prefectures extending along the Pacific coast south of Miyagi. 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. 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. Large stretches of land were left submerged under seawater, particularly in lower-lying areas.
The earthquake triggered tsunami warnings throughout the Pacific basin. The tsunami raced outward from the epicentre at speeds that approached about 500 miles (800 km) per hour. 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. Several hours later 9-foot (2.7-metre) tsunami waves struck the coasts of California and Oregon in North America. 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.
Britannica Quiz
2011年3月11日 · 東北地方太平洋近海地震 （日語： 東北地方太平洋沖地震／とうほくちほうたいへいようおきじしん Tōhokuchihō Taiheiyōoki Jishin ?[12][13]）是指 日本標準時間 （UTC+9）2011年3月11日14時46分發生於 日本 東北地方 外海 三陸沖 的 地震矩規模 為9.0的 大型逆衝區地震 ...
2022年2月25日 · The Japan earthquake and tsunami of 2011, also known as the 2011 Tohoku earthquake and tsunami or the Great Tohoku earthquake, was a natural disaster that shook northeastern Japan on...
On March 11, 2011, Japan experienced the strongest earthquake in its recorded history. The earthquake struck below the North Pacific, 130 kilometers (81 miles) east of Sendai, the largest city in the Tohoku region, a northern part of the island of Honshu. The Tohoku earthquake caused a tsunami.
2024年3月11日 · Thirteen years have passed since the March 11 Great East Japan Earthquake, tsunami and Fukushima Daiichi nuclear power plant accident. Repairs of damaged infrastructure in the disaster area are...
2011年3月11日 · A massive earthquake of magnitude of 9.0 occurred Friday 11 March, off the Pacific coast of the northeastern part of the Japanese main land (Tohoku Region), causing devastating damages. The Japan Meteorological Agency named this earthquake the 2011
311 japan earthquake cause 相關
廣告日語密集課程，一年達N3級程度，全面聽、講、讀、寫訓練，每週2堂，每堂3小時. 11月15日N5日語新班/11月21日N3日語新班/11月19日N2日語新班，名額少量，報名從速。
