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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.
Earthquake prediction is a branch of the science of seismology concerned with the specification of the time, location, and magnitude of future earthquakes within stated limits, [1] [a] and particularly "the determination of parameters for the next strong earthquake to occur in a region". [2]
Japan's Earthquake Early Warning system was put to practical use in 2006. The system that warns the general public was installed on October 1, 2007. [ 25 ] [ 26 ] It was modeled partly on the Urgent Earthquake Detection and Alarm System ( UrEDAS [ ja ] ) of Japan Railways , which was designed to enable automatic braking of bullet trains .
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 anecdote, recorded in an 1856 chronicle of journalistic reporting on the earthquake, is the earliest known claim that catfish can naturally predict earthquakes. [7] In the 1930s, Japanese seismologists Shinkishi Hatai and Noboru Abe demonstrated that catfish in aquaria showed increased agitation several hours before earthquakes occurred ...
TOKYO — Japan was struck by a series of powerful earthquakes on New Year's Day that killed at least 48 people, reduced hundreds of buildings to rubble, and forced tens of thousands to flee to ...
Situated on the "Ring of Fire" arc of volcanoes and oceanic trenches that partly encircles the Pacific Basin, Japan accounts for about 20% of the world's earthquakes of magnitude 6 or greater, and ...
Kiyoo Mogi (茂木 清夫, Mogi Kiyoo, 1929 in Yamagata Prefecture, Japan–6 June 2021 [1]) was a prominent seismologist.He was regarded as Japan's foremost authority on earthquake prediction [2] and was a chair of the Japanese Coordinating Committee for Earthquake Prediction (CCEP). [3]