Inspectors Check for Damage after Hawaii’s 6.6 Magnitude Earthquake

October 17, 2006

  • October 17, 2006 at 2:43 am
    argie says:
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    There are two main scales to grade earthquakes one is the Mercalli (based on damage done) and the other is the Richter (based on the land waves\’ amplitude). The two are very different. Which is the one that\’s been used?

  • October 18, 2006 at 12:03 pm
    Rick says:
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    The Richter Scale is the one that uses fractional magnitude numbers…..Mercalli uses whole numbers.

  • October 18, 2006 at 2:06 am
    geek says:
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    The Richter scale measures the energy discharged from the quake; a 3 on the richter scale releases the equivalent of 29 tons of tnt.
    The Mercalli scale measures visible observations of damages; a 3-4 is noticable to most people indoors, some outdoors; dishes, windows rattle, many folks think it\’s a passing truck.

  • October 20, 2006 at 10:33 am
    charly says:
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    geek can\’t understand: 29 tons of TNT per…sq inch, sq yard, sq mile? Anyway 6.6 feckin what scale?

  • October 20, 2006 at 10:35 am
    argie says:
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    Thanx 4 the data. Still blind as to scale used. Journalism gettin worst…



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