Thursday, January 14, 2010

Haitian Disaster

It's now common knowledge that the Haitians have suffered enormously, this week, at the hands of an earthquake weighing 7.0 on the richter scale. It's now up to us as people of a humane society to get involved and offer whatever support we can to help in alleviating the pain and suffering suddenly inflicted on our brothers and sisters. There are several volunteer services that are willing and able to help to setup centralized location where donations can be sent. Please be as generous as possible and try not to be a critic in this time of crisis.

I also think I should give a brief description of what the unit of measurement means in determining the size of the quake and do hope we will have a fair appreciation of the damage this can give.

magnitudes Description Earthquake effects Frequency of occurrence
Less than 2.0 Micro Microearthquakes, not felt. About 8,000 per day
2.0-2.9 Minor Generally not felt, but recorded. About 1,000 per day
3.0-3.9 Often felt, but rarely causes damage. 49,000 per year (est.)
4.0-4.9 Light Noticeable shaking of indoor items, rattling noises. Significant damage unlikely. 6,200 per year (est.)
5.0-5.9 Moderate Can cause major damage to poorly constructed buildings over small regions. At most slight damage to well-designed buildings. 800 per year
6.0-6.9 Strong Can be destructive in areas up to about 160 kilometres (100 mi) across in populated areas. 120 per year
7.0-7.9 Major Can cause serious damage over larger areas. 18 per year
8.0-8.9 Great Can cause serious damage in areas several hundred miles across. 1 per year
9.0-9.9 Devastating in areas several thousand miles across.
1 per 20 years
10.0+ Epic Never recorded; see below for equivalent seismic energy yield.
Extremely rare (Unknown

2 comments:

  1. Here is some additional information:

    Approximate Magnitude Approximate TNT for
    Seismic Energy Yield Joule equivalent Example
    0.0 1 kg (2.2 lb) 4.2 MJ
    0.5 5.6 kg (12.4 lb) 23.5 MJ Large hand grenade
    1.0 32 kg (70 lb) 134.4 MJ Construction site blast
    1.5 178 kg (392 lb) 747.6 MJ WWII conventional bombs
    2.0 1 metric ton 4.2 GJ Late WWII conventional bombs
    2.5 5.6 metric tons 23.5 GJ WWII blockbuster bomb
    3.0 32 metric tons 134.4 GJ Massive Ordnance Air Blast bomb
    3.5 178 metric tons 747.6 GJ Chernobyl nuclear disaster, 1986
    4.0 1 kiloton 4.2 TJ Small atomic bomb
    4.5 5.6 kilotons 23.5 TJ
    5.0 32 kilotons 134.4 TJ Nagasaki atomic bomb (actual seismic yield was negligible since it detonated in the atmosphere)
    Lincolnshire earthquake (UK), 2008
    5.4 150 kilotons 625 TJ 2008 Chino Hills earthquake (Los Angeles, United States)
    5.5 178 kilotons 747.6 TJ Little Skull Mtn. earthquake (NV, USA), 1992
    Alum Rock earthquake (CA, USA), 2007
    6.0 1 megaton 4.2 PJ Double Spring Flat earthquake (NV, USA), 1994
    6.5 5.6 megatons 23.5 PJ Rhodes (Greece), 2008
    6.7 16.2 megatons 67.9 PJ Northridge earthquake (CA, USA), 1994
    6.9 26.8 megatons 112.2 PJ San Francisco Bay Area earthquake (CA, USA), 1989
    7.0 32 megatons 134.4 PJ Java earthquake (Indonesia), 2009
    12 January 2010 earthquake (Haiti)

    7.1 50 megatons 210 PJ Energy released is equivalent to that of Tsar Bomba, the largest thermonuclear weapon ever tested.
    7.5 178 megatons 747.6 PJ Kashmir earthquake (Pakistan), 2005
    Antofagasta earthquake (Chile), 2007
    7.8 600 megatons 2.4 EJ Tangshan earthquake (China), 1976
    8.0 1 gigaton 4.2 EJ Toba eruption[citation needed] 75,000 years ago; the largest known volcanic event
    San Francisco earthquake (CA, USA), 1906
    Queen Charlotte earthquake (BC, Canada), 1949
    México City earthquake (Mexico), 1985
    Gujarat earthquake (India), 2001
    Chincha Alta earthquake (Peru), 2007
    Sichuan earthquake (China), 2008 (initial estimate: 7.8)
    8.5 5.6 gigatons 23.5 EJ Sumatra earthquake (Indonesia), 2007
    9.0 32 gigatons 134.4 EJ Lisbon Earthquake (Lisbon, Portugal), All Saints Day, 1755
    9.1 67 gigatons 477 EJ Indian Ocean earthquake, 2004 (40 ZJ in this case)
    9.2 90.7 gigatons 379.7 EJ Anchorage earthquake (AK, USA), 1964
    9.5 178 gigatons 747.6 EJ Valdivia earthquake (Chile), 1960 (251 ZJ in this case)
    10.0 1 teraton 4.2 ZJ Never recorded by humans.
    13.0 108 megatons = 100 teratons 5x1030 ergs = 500 ZJ Yucatán Peninsula impact (causing Chicxulub crater) 65 Ma ago.[8

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  2. Having reviewed part of the statements made by televangelist Pat Robertson, I am not amazed to hear this racist comments, based on tract record, from him. I also would not be surprized if several others, who proclaim to be doing God's work, come out and try to use the Bible to give credence to this insane and stupid claim.
    I am happy though that people of the world are able to make the distinction between Theological and Geological happenings and will flush these stupid claims to the basket of stupidity.

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