Huge EARTHQUAKE

[knieft]

quote:

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Originally posted by Mimosa

Air quake seems like thunder but alas TomK and Royall gave us a better understanding of our lack of knowledge in which we are for ever grateful.The hard drive between the ears always has more room for facts and knowledge.
Mrs.Mimosa

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You are a greater genius than I, Mimosa! I couldn't make heads nor tails of it.

"Earthquake depths are calculated relative to the WGS84 geoid, mean sea-level, or the average elevation of the seismic stations which provided arrival-time data for the earthquake location. The choice of reference depth is dependent on the method used to locate the earthquake, which varies by seismic network. NEIC currently uses the reference geoid called WGS84, but since ComCat includes data from many different seismic networks, the process for determining the depth is different for different events. The depth is the least-constrained parameter in the earthquake location, and the error bars are generally larger than the variation due to different depth determination methods."

I, too, have much to learn.

(Used to be, you had to pay a quarter at certain h/motels to get your bed to shake.)

Cheers,
Kirt