Seattle Washington Quake |
From the USGS National Earthquake Information Center:
For a charming perspective on the quake, you may be interested in the Earthquake As Artist webpage, where the oscillations of a "Sand Pendulum" drew unusual designs apparently reflecting the movement of the earth itself. The GCP data showed a marginally significant deviation (p = 0.06) for the four-hour aftermath we use to look at such events.
Curiously, but instructively in the context of our ongoing question about the non-locality of effects on the EGG network, the three eggs closest to the earthquake site, all in California, did not show a trend like the network as a whole, and indeed had a downward trend that reduced the overall network deviation. This trend isn't siginificant, but is quite distinctive.
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