D.O.'s+Earthquake+2

Back to Ligo Data Back to Identified Earthquakes LIGO Project Instuctions September 05 Data

The earthquake taking place at about 1:40 is my second at 24.0840, 122.1910 off the coast of Taiwan.
 * __Earthquake 2__**

Here is a map of the earthquake media type="googlemap" key="http://maps.google.com/maps/ms?hl=en&ie=UTF8&msa=0&msid=101783471959187101034.00044b1d681fa5ec725b9&ll=24.084,122.191&spn=0,0&output=embed&s=AARTsJpximVkL8wGFsdblavyY18IutwW_w" width="425" height="350" As you can see from the placement of the earthquake above, it is traveling through water for almost all of the time with some little chunk of land, so to calculate how long it took to get to LIGO, we will use P-waves. P-waves typically travel between 5-8 km/s according to the Purdue site for earthquakes, and the same will also go for the two other earthquakes I have identified. The total distance was about 10,040 km.

Below is the information for my earthquake and the math.

Date Time Lat Lon Depth Mag Magt Nst Gap Clo RMS SRC Event ID

2005/09/06 01:16:02.35 24.0840 122.1910 32.00 5.80 Mw 365 0.85 NEI 200509064003

If you divide 10,040 km by 6 km/s (the average speed of P-waves) you get a total est. time of about 1,673 seconds. From there, take the 1,673 sec. and divide it by 60sec. to get it's est. time in minutes and you will get about 28 minutes.

This earthqauke was alot closer than my first one. The quake occured at 1:16:00 GMT and it was recieved at LIGO at just a lillte past 1:45:00. So take the 28 minutes I got from my equations and add it to the starting time and you almost get it timed on the nose. So the earthquake I did was detected by LIGO data is the same earthquake that took place at 24.0840, 122.1910 off the coast of Taiwan.