PF+Earthquake+June+2,+2006

Main LIGO Page AGN PF's LIGO Data LIGO June 2006

The quake reported as occurring on 6/2/06 at 07:31:36.46, at -20.8370 -178.7010 was detected in the LIGO data.

Here's the LIGO plot: Its distance from LIGO was about **9546.4** **km** (x). I found this by using the measurement tool in Google Earth. First I entered the coordinates from the LIGO data into Google Earth and put a place-marker on that spot. Next I used the ruler tool to measure the distance between that point and the LIGO station in Hanford Washington (46°27'18.76"N, 119°24'27.51"W).

The duration between its inception and its detection at LIGO was **26.5 minutes**. I found this by taking the distance from the earthquake to LIGO (9546.4) and dividing it by the speed of the s- and p-waves of the quake. I then divided that answer by 60 to figure out how many minutes it took.

9546.4 km / 6 km/s = 1591.066667s / 60 = 26.5 min

This duration of time fits perfectly with the graph from the LIGO data. In the data it was reported as occurring at 07:31:36. Simple addition of the 26.5 minutes to that time shows that it should have been detected in Hanford at about 07:58:06, which is what the above graph shows.

The speed it had to travel to cover that distance in that time was **360.24 km/min** or **6.004 km/s**. These are plausible wave speeds, based upon this [|website].

Date Time Lat Lon Depth Mag Magt Nst Gap Clo RMS SRC Event ID 2006/06/02 07:31:36.46 -20.8370 -178.7010 591.60 6.00 Mw 387 0.86 NEI 200606024024