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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.
Efforts by the National Diet Library were deployed toward the preservation of archival material related to the Great East Japan Earthquake. On 10 May 2011, a panel of experts published its Seven Principles for the Reconstruction Framework, with the first principle pressing the need to construct permanent memory of the natural disaster. [77]
The Japan Trench Fast Drilling Project (JFAST) was a rapid-response scientific expedition that drilled oceanfloor boreholes through the fault-zone of the 2011 Tohoku earthquake. JFAST gathered important data about the rupture mechanism and physical properties of the fault that caused the huge earthquake and tsunami which devastated much of ...
In Japan, the Shindo scale is commonly used to measure earthquakes by seismic intensity instead of magnitude. This is similar to the Modified Mercalli intensity scale used in the United States, the Liedu scale used in China or the European Macroseismic Scale (EMS), meaning that the scale measures the intensity of an earthquake at a given location instead of measuring the energy an earthquake ...
The Miracle Pine Tree (奇跡の一本松, Kiseki no Ippon matsu) was the lone surviving tree of the Takata Pine Forest, which suffered deadly damage from the Great East Japan Earthquake tsunami in March 2011. [3] [4] It was located in Rikuzentakata, Iwate Prefecture.
The Japan News likewise reported that the video shows dashcam footage of shaking in Ishikawa, a prefecture in Japan, from the 7.5-magnitude Noto Peninsula earthquake on New Year's Day 2024.
This earthquake resulted in at least 1 death and left at least 185 injured. [14] Serious damage was caused. There was no tsunami. It is believed that this was an aftershock of the earthquake almost 10 years to the exact date of the 2011 mainshock. [15] 2021-03-20 18:09:45 M w 7.0 M JMA 6.9
The JMA announced the Earthquake Early Warning hit (accuracy) rate for the 2011 fiscal year on 31 May 2012. The hit rate is the percentage of warnings issued immediately on the detection of P-waves with a Japan Meteorological Agency seismic intensity scale (震度, shindo) number (0 to 7) within one shindo number of the measured earthquake.