EL's+Earthquake+3+on+Oct+2005

EL's Earthquake data 1 on Oct 08 2005 in Pakistan

EL's Earthquake data 2 on Oct 10 2005 near Indonesia

2005/10/19 11:44:42.79 36.4050 140.8390 32.00 6.30 Mw 527 0.80 NEI 200510194051

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According to the picture in powerpoint, the estimated arrival time of earthquake wave to Hanford Observatory center is approximately 12:08:00 PM GMT. Since the meaured time of earthquake detected in a local area is 11:44:42 GMT, I can imply that it takes about 23 minutes 48 seconds. 1. Distance from Hanford observatory center to the local earthquake near Indonesia : 4,868.86 miles 2. Time taken to travel : 23 minutes 48 seconds. 3. 5km/sec -> the speed of P-wave, 3km/sec -> the speed of S-wave
 * **Given**

1. Convert miles into kilometer to match the unit with the speed of earthquake waves 4868.86miles = 7834 kilometers
 * **Procedure**

2. Divide the distance by the speed of P-wave to get how long does P-wave take to travel from Hanford Observatory center to local area. 7834 km / (5km/sec) = 1566.8 sec 1 minutes = 60 seconds 1566.8 / 60 = 26 minutes 1 second

3. Divide the distance by the speed of S-wave to get how long does S-wave take to travel from Hanford Observatory center to local area. 7834 km / (3km/sec) = 2611.333 sec 1 minutes = 60 secs 2611.333 / 60 = 43 minutes 50 seconds

In this case, the P-wave is likely to match the time on the graph to the estimated time with the differnce of 2 minutes 13 seconds. The indicated maximum point on S-wave graph might not be the earthquake wave from Japan because of huge gap of two times.
 * **Conclustion**