Harriet Ross Tubman was an illiterate slave born in the Bucktown district of Dorchester County on the Eastern Shore of Maryland. She escaped to freedom, alone, in 1849. For the next 11 years she returned to the South 19 times to lead more than 300 slaves north across the Mason-Dixon Line and sometimes into Canada.
HOW DO EARTHQUAKES AFFECT SOCIETY? The earthquake hazard poses the most serious intermediate term risk to the health, safety, and economic viability of many parts of the United States and throughout the world. Recent earthquakes demonstrated the risks to modern industrial societies from such cataclysmic events, affecting everything from massive loss of life, infrastructure damage, and financial instability. Much larger earthquakes can be expected to occur adjacent to many metropolitan regions in the United States. Examples: 1. The Northridge earthquake (1994) was a modest (magnitude 6.7) event which caused 57 deaths, over $20 billion of damage, and created major disruption of the Los Angeles area infrastructure.
Earthquakes are destructive because they break open the earth's crust. An earthquake is a sudden shift of the earth's plates and often creates large crevices in the surface. Earthquakes can also cause avalanches and flash floods which both ruin vegetation and wear down the earth's crust.