Your browser does not support viewing this document. Click here to download the document.
Volcanoes And Society
How do Volcanoes Affect Society?
-there are thought to be about 600 million people living close to an active volcano. -casualties from volcanic eruptions have been modest, compared to other geohazards but socioeconomic losses and disruption can be considerable. -vulnerable to very large volcanic events making the study of return periods, environmental effects, and consequences a key goal of volcanology. What Type of Risks do Volcanoes Pose? -flooding -due to rise in water level/glacial melting -destroys structures, obstructs traffic -Global Climate Impact -sulfur clouds make earths atmosphere more reflective, cooling the planet -interferes with crop production -Property damage -insurance is not widely available and is costly |
How Do We Analyze Disaster Risk?
-around the world disasters occur each day. sometimes the impacts are felt locally other times the event reaches across state and national boundaries -globally the number of natural disasters has increased 4x during the past 3 decades--from about 120/year during the 1980s to roughly 500/year now. These disasters exert an uneven impact on the worlds poorest and most vulnerable individuals. -to calculate the risk of a natural disaster occurrence we have to have information about past occurrences -this helps us estimate return periods and better prepare and manage future events. -disaster risk can be calculated by dividing the number of past events by the time period over which they occurred. |
Your browser does not support viewing this document. Click here to download the document.
Yellowstone Super Volcano 10 facts Video
1. Oldest national park
2. 5 miles below the waterfalls and mountain peaks hides a volcano
3. The ground will begin to rise as the lava pushes upwards on the ground
4. Ash cloud could reach up 80,000 feet in the air.
5. Within a hundred miles of Yellowstone nothing would survive.
6. Global agriculture would fall into chaos
7. Fewer than 10 super volcanoes and Yellowstone is one of them
8. The crater is so large it can only be seen from the air, large enough to hold the city of Los Angeles
9. 640,000 years ago was the last eruption
10. Has the power of a hydrogen bomb
2. 5 miles below the waterfalls and mountain peaks hides a volcano
3. The ground will begin to rise as the lava pushes upwards on the ground
4. Ash cloud could reach up 80,000 feet in the air.
5. Within a hundred miles of Yellowstone nothing would survive.
6. Global agriculture would fall into chaos
7. Fewer than 10 super volcanoes and Yellowstone is one of them
8. The crater is so large it can only be seen from the air, large enough to hold the city of Los Angeles
9. 640,000 years ago was the last eruption
10. Has the power of a hydrogen bomb