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2. Why Japan issued its first-ever 'megaquake advisory' — and ...

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   The Summary. Japan’s meteorological agency on Thursday issued its first-ever “megaquake advisory.” The warning followed a 7.1-magnitude earthquake off the country’s southern coast.

3. Earthquake scientists are learning warning signs of the 'big ...

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   For U.S. earthquake scientists, Japan's 'megaquake' warning renewed worries about when and how to warn the public if they find clues that the 'big one' might be coming for the West COast.

4. Japan raises probability of megaquake to over 80% in next 30 ...

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   A megaquake is defined as an earthquake with a magnitude of 8 or greater, bringing the potential for exceptional destructive power and a strong likelihood of generating a tsunami.

5. Earthquake Early Warning (Japan) - Wikipedia

   en.wikipedia.org/wiki/Earthquake_Early_Warning...

   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.

6. Sensurround - Wikipedia

   en.wikipedia.org/wiki/Sensurround

   The drivers in the Sensurround horns were improved to extend their frequency response higher so they could reproduce the low notes in music, thus allowing sound mixers to incorporate music into the Sensurround system (this was used to good effect in Rollercoaster.) Advancements by RCA in optical soundtrack recording led MCA engineers to the ...

7. Sound Ideas - Wikipedia

   en.wikipedia.org/wiki/Sound_Ideas

   Sound Ideas is a Canadian audio company and the archive of one of the largest commercially available sound effects libraries in the world. [2] [3] It has accumulated the sound effects, which it releases in collections by download or on CD and hard drive, through acquisition, exclusive arrangement with movie studios, [4] and in-house production.

8. Japan's first-ever megaquake advisory brings worry and ... - AOL

   www.aol.com/news/japanese-worried-confused-first...

   Japan, one of the most earthquake-prone nations on earth, issued its first-ever “megaquake advisory” last week after a powerful quake struck off the southeastern coast of the southern main ...

9. What is Japan's Nankai Trough megaquake advisory? - AOL

   www.aol.com/news/explainer-japans-nankai-trough...

   Japan issued its first-ever advisory on higher-than-usual risks of a megaquake, after a strong magnitude 7.1 quake occurred on Thursday at the edge of a tremulous seabed zone along the Pacific ...