Journal Notes
Definitions, Review Questions, Critical Thinking
Chapter 1: Natural Hazards
Geologic cycle: A group of interrelated sequences of Earth processes known as the hydrologic, rock, techtonic, biogeochemical cycles.
Mitigation: The avoidance of, lessening, or compensation for anticipated harmful effects of an action, especially with respect to the natural environment.
Land-use planning: The preparation of an overall master plan for future development of an area; the plan may recommend zoning restrictions and infrastructure both practical and appropriate for the community and its natural environment; based on mapping and classification of existing human activities and environmental conditions, including natural hazards.
Tectonic cycle: A repetitive sequence of events and processes that create and destroy the Earth’s crust and its ocean basins and mountain ranges.
1. What forces drive internal and external earth processes? Tectonic plates drive internal earth processes, and Energy from the sun drives the earth’s processes.
4. Explain why the effects of natural hazards are not constant over time. Human population density and land-use patterns have increased over time.
8. What are the five fundamental concepts for understanding natural processes as hazards? 1. Hazards are predictable from scientific evaluation. 2. Risk analysis is an important component in our understanding of effects of hazardous processes. 3. Linkages exist between different natural hazards as well as between hazards and the physical environment. 4. Hazardous events that previously produced disasters are now producing catastrophes. 5. Consequences of hazards can be minimized.
13. What is a precursor event? That which precurses, a forerunner, a predecessor an indicator of approaching events. An example would be foreshocks before a large earthquake or prior to a volcanic rupture, gas emission may signal an imminent eruption.
20. What are natural service functions? When a disaster happens it’s
Chapter 1: Natural Hazards
Geologic cycle: A group of interrelated sequences of Earth processes known as the hydrologic, rock, techtonic, biogeochemical cycles.
Mitigation: The avoidance of, lessening, or compensation for anticipated harmful effects of an action, especially with respect to the natural environment.
Land-use planning: The preparation of an overall master plan for future development of an area; the plan may recommend zoning restrictions and infrastructure both practical and appropriate for the community and its natural environment; based on mapping and classification of existing human activities and environmental conditions, including natural hazards.
Tectonic cycle: A repetitive sequence of events and processes that create and destroy the Earth’s crust and its ocean basins and mountain ranges.
1. What forces drive internal and external earth processes? Tectonic plates drive internal earth processes, and Energy from the sun drives the earth’s processes.
4. Explain why the effects of natural hazards are not constant over time. Human population density and land-use patterns have increased over time.
8. What are the five fundamental concepts for understanding natural processes as hazards? 1. Hazards are predictable from scientific evaluation. 2. Risk analysis is an important component in our understanding of effects of hazardous processes. 3. Linkages exist between different natural hazards as well as between hazards and the physical environment. 4. Hazardous events that previously produced disasters are now producing catastrophes. 5. Consequences of hazards can be minimized.
13. What is a precursor event? That which precurses, a forerunner, a predecessor an indicator of approaching events. An example would be foreshocks before a large earthquake or prior to a volcanic rupture, gas emission may signal an imminent eruption.
20. What are natural service functions? When a disaster happens it’s