KH+Earthquake+Identification+2-1-06




 * Earth Quake Information
 * The distance from Hanford, WA to the quake at latitude 35°38'27.60"N, longitude 139°48'43.26"E is aproximately 7, 907.1 km.
 * The traveled primarily over water there for the P Waves of the earthquake were recorded by LIGO, which travel around 5-8 km/sec.
 * The quake was recorded to have started at 11:35:53.71 GMT with a magnitude of 5.30 by [|NCEDC].


 * Procedure
 * First I looked through data at [|NCEDC] and found a quake on 02/01/2006 with a magnitude of 5.10. Next I used the [|Bluestone]tool to look at the data for LIGO on 02/01/2006. The above graph is what I got and it looks like the large earth quake may of been identified around 11:35:00 GMT. Next I found the distance between LIGO and the earthquake using Google Earth. After I found the distance to be 7,907.1 km I used the know speed of P Waves to be 8 km/sec and proceeded to use conversion factors to change the distance into minutes. 7,907.1 km x 1 sec/8 km = 988.3875 sec. 988.3875 sec x 1 min/60 sec = 16.473125 min Using the information I have found, I know that the earthquake would arrive at aproximately 11:51:00 GMT.


 * Conclusion
 * Using the graph above, LIGO observed a large incident around 11:45:00-11:50:00 GMT which is close to 11:51:00 GMT. The margin of error makes this incident confirmed to be the earthquake that took place at 11:35:53.71 GMT.

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