Hi Geoff,

Where did this event come from?  Why this time interval?  Is it really
from May 8, 2007, or are there some numbers reversed, and it's really
from August 5, 2007?  Where do you think it's located?

The only event I could find in the USGS catalog that might correspond
from last May is this one:
=20
[Global search for events on May 8, 2007.]
PDE-W 2007   05 08 214230.56 -19.30 -179.19 627 4.50 mb GS   .. . .......
but mb 4.5 is pretty small for this distance.

Using the on-line travel time calculator, the expected arrival times would=
 be:

  The seismogram provided does not include
enough time to see which of these phases might have been recorded.

Travel Times to YOUR Seismic Station

Based on the information that you submitted:

    * Station Coordinates : 33.4213982 -111.574997
    * Earthquake Latitude and Longitude: -19.2999992 -179.190002
    * Earthquake Depth (km): 627.
    * Earthquake Time: 21 42 31
    * Earthquake Magnitude: 4.5
    * Compute travel times for all branches

    *    Expected 1s period body wave=20
amplitude     [  1.39E-02 =B5m]  [  8.73E-02 =B5m/s]

    *

    *

    *  Delta   Azimuth (degrees clockwise from north)

    *  (deg)      eq-to-station     station-to-eq

    *  83.07           51.2             241.6


    *                  travel   arrival time

    *     #  code      time(s)  dy hr mn sec

    *     1  P          681.33   0 21 53 52

    *     2  PcP        684.05   0 21 53 55

    *     3  pP         812.90   0 21 56  3

    *     4  sP         876.13   0 21 57  7

    *     5  PP         884.09   0 21 57 15

    *     6  PKiKP      993.96   0 21 59  4

    *     7  pPKiKP    1138.21   0 22  1 29

    *     8  SKiKP     1149.38   0 22  1 40

    *     9  sPKiKP    1198.18   0 22  2 29

    *    10  SKSac     1243.10   0 22  3 14

    *    11  SKKSac    1249.57   0 22  3 20

    *    12  S         1250.43   0 22  3 21

    *    13  ScS       1259.26   0 22  3 30

    *    14  SPn       1307.54   0 22  4 18

    *    15  pSKSac    1429.50   0 22  6 20

    *    16  sS        1485.73   0 22  7 16

    *    17  sSKSac    1495.76   0 22  7 26

    *    18  SS        1594.65   0 22  9  5

    *    19  PKKPdf    1769.15   0 22 12  0

    *    20  PKKPbc    1777.53   0 22 12  8

    *    21  SKKPdf    1924.70   0 22 14 35

    *    22  SKKPbc    1935.96   0 22 14 46

    *    23  PKKSdf    1984.69   0 22 15 35

    *    24  PKKSbc    1996.20   0 22 15 47

    *    25  SKKSdf    2140.03   0 22 18 11


At 07:24 PM 8/5/2007, you wrote:
>Hello PSN,
>
>Would one of you be so kind as to
>load this data into your WQ program
>and send me an honest opinion
>of how YOU read it.
>I am never sure I am reading these things right.
>The charts the USGS sent me never seem
>to agree but then I can never tell how
>deep these things are happening.
>
>Thanks.
>
>Regards;
>geoff
>


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