CC's+05+04+13

Back to Earthquake data This earthquake occured at 15:16:26 GMT at the coordinates 55.9841N 154.2628W. It was located around the Alaskan Coastline. By using Google Earth's ruler tool, I was able to find the distance between the center of the earthquake and the LIGO center in Hanford, WA. The distance is 2,620.17 km. The magnitude of the earthquake is 5.75.

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The formula I used to determine the time the earthquake arrived at the LIGO center: speed of p-waves= 6 km/s distance= 2,620.17 km

speed = distance / time time = distance / speed so t = 2,620.17 / 6 t = 436.695s or 7.27825 mins so the time the earthquake should show up in the LIGO instruments should be around 7-8 mins after the earthquake occured 15:16:26 + 00:08:00 = 15:24 GMT

Since the time the earthquake should show up on the LIGO data is nearly the exact same time the instruments on LIGO registered a large movement. The graph also shows after waves when the s-waves arrive at the instruments in LIGO. I conclude this is an earthquake and it is the same earthquake as the data tells us.