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A seismogram recorded in Massachusetts, United States. The magnitude 9.1 (M w) 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), [9] [56] with its epicenter approximately 72 km (45 mi) east of the Oshika Peninsula of Tōhoku, Japan, lasting approximately six minutes.
This is an alphabetically sorted list of cities and towns severely damaged by the 2011 Tōhoku earthquake and tsunami. Cities and towns listed here reported at least US$ 100,000 in damage or at least one death.
The tsunami is known as the Hawaii April Fools' Day Tsunami because it happened on 1 April and many people thought it was an April Fool's Day prank. The result was the creation of a tsunami warning system known as the Pacific Tsunami Warning Center (PTWC), established in 1949 for the countries of Oceania .
Eruption, Earthquake, and Tsunami 21 May 1792: Mount Unzen, Kyūshū: A major eruption at Mt Unzen triggered an earthquake, causing Unzen's east flank to collapse, triggering a tsunami in the Ariake Sea. 13,000 + 1771 Great Yaeyama Tsunami: Earthquake and Tsunami 24 Apr 1771: Ishigaki Island and Miyako Island: 7,273: Mino–Owari earthquake ...
From the tsunami records the estimated tsunami's magnitude is (M t = 8.2), [6] much greater than expected for the seismic magnitude estimated from the observed seismic intensity (M s =7.2). [2] This earthquake is now regarded as being part of a distinct class of seismic events, the tsunami earthquake. [7]
A seawall at Tsu, Mie Prefecture in Japan. In some tsunami-prone countries, earthquake engineering measures have been taken to reduce the damage caused onshore. Japan, where tsunami science and response measures first began following a disaster in 1896, has produced ever-more elaborate countermeasures and response plans. [78]
A large earthquake shook Kyushu, Japan, just after 9 p.m. local time Monday night, triggering a tsunami advisory for Japan's southeast coast. The quake was centered just offshore of Kyushu, about ...
The 1498 Meiō earthquake (明応地震 Meiō Jishin) struck off the coast of Nankaidō, Japan, at approximately 08:00 local time [3] on September 20, 1498. [1] With an estimated magnitude of 8.6 M s, [1] it triggered a massive tsunami. The exact death toll from this event remains uncertain, but reports range from 5,000 to 41,000 casualties.