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  1. #1
    Matthew Ota's Avatar
    Matthew Ota Guest

    Default Moderate Earthquake near Orange County Astronomers observing site



    A moderate earthquake occurred at 8:41:46 AM (PDT) on Sunday, June 12,
    2005.
    The magnitude 5.6 event occurred 9 km (6 miles) ESE of Anza, California
    The hypocentral depth is 14 km ( 8 miles).

    Coordinates 33 deg. 31.9 min. N (33.532N), 116 deg. 34.4 min. W
    (116.573W)

    This temblor, which is classified as a "moderate" earthquake, was
    widely felt over Southrn California.
    I easily felt it in Anaheim since I was lying in bed, reading. It was
    felt as a slow back and forth rolling movement.
    Liam Kennedy in Irvine reported a similar sensation.

    When I read that the quake was centered near Anza, my concerns went to
    our club facilities at our observing site. Our club observing site is
    approximately ten miles from the epicenter.

    However, by 10:52 a.m. OCA member Barbara Toy posted a report on the
    OCA Astronomers Yahoo group and reported an on-site experience by Tim
    (last name unknown) who was disassembling his equipment at "Ten Pad
    Alley" (an upper pad location at OCA Anza) at the time of the quake.
    He reported "a very even motion, and felt like a vibration with no
    sudden jolts".

    There was no visible damage to the club house, according to members who
    were staying there at the time.

    So, this quake adds to the lore of our site, along with the fire we had
    last year....

    We were again fortunate.

    Thanks to Liam Kennedy, Barbara Toy, Hassi Norlen and Alan Smallbone
    who contributed information on this article by timely posting on our
    club's Yahoo Group

    Matthew Ota


  2. #2
    Florian's Avatar
    Florian Guest

    Default Moderate Earthquake near Orange County Astronomers observing site

    The quake was a bit east of Anza. We felt it pretty good here in Palm Springs. A few things even fell off the table. Here is a good locator map...

    http://quake.wr.usgs.gov/recenteqs/Maps/116-34.html


    -Florian



  3. #3
    Matthew Ota's Avatar
    Matthew Ota Guest

    Default Moderate Earthquake near Orange County Astronomers observing site

    Thanks, already saw the map. I went straight to the Caltech Seismology
    web site as they quickly post earthquake data there.

    Matthew Ota


  4. #4
    Starlord's Avatar
    Starlord Guest

    Default Moderate Earthquake near Orange County Astronomers observing site

    Up here in Rosamond, we didn't even notice it.

    "Matthew Ota" <otakenji@bigvalley.net> wrote in message
    news:1118619249.781834.110890@z14g2000cwz.googlegr oups.com...



  5. #5
    Matthew Ota's Avatar
    Matthew Ota Guest

    Default Moderate Earthquake near Orange County Astronomers observing site

    Well, you will get yours eventually ; ) here we all live in an active
    seismic zone.

    Matthew Ota


  6. #6
    Starlord's Avatar
    Starlord Guest

    Default Moderate Earthquake near Orange County Astronomers observing site

    The main this is that Rosamond is at the start of the foothills that run
    between Mojave and Bakersfield, in otherwords, we are atop deep bedrock (
    old bedrock ). Now if we where closer to palmdale who sits right on the S.A.
    faultline, we're be closer to getting one. But being some 35 miles and where
    we are, we feel less of them here.

    And living in a trailer I can even fell the 18 wheelers on the I-14, but I
    felt nothing of the one today.
    And I was online at the time.

    "Matthew Ota" <otakenji@bigvalley.net> wrote in message
    news:1118624325.240191.17500@g44g2000cwa.googlegro ups.com...



  7. #7
    Craig's Avatar
    Craig Guest

    Default Moderate Earthquake near Orange County Astronomers observing site

    [This followup was posted to sci.astro.amateur and a copy was sent to
    the cited author.]

    The boys and I felt too Matt. I was just getting out of a shower and
    they were in their rooms. Ellen felt it at the St. Judes in Fullerton as
    well.

    See you tomorrow

    In article <1118619249.781834.110890@z14g2000cwz.googlegroups .com>,
    otakenji@bigvalley.net says...

 

 

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