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It might interest you to know that up until about 1820, there were about 15 to 18 volcanic eruptions per year all over the world.
This number remained steady for several hundred years up until around 1820, when it began to rise.
By World War One, the average number of eruptions had reached 40, more than twice their average over the previous 400 years.
By the start of the Korean War, it was about 60.
The average for the past two decades or so has been between 60 and 70 eruptions per year.
The USGS explains that volcanic activity is not increasing however. They say that reporting of volcanic eruptions has increased and the actual number of eruptions has remained steady at @65 a year for thousands of years.
YEAH RIGHT.
Well, since 1694, there have been exactly 155 Large Holocene Eruptions.
A Large Holocene Eruption is a major volcanic eruption that ejects at least 0.1 square kilometer of ash and debris into the atmosphere.
Large Holocene Eruptions are so large they cannot be hidden. Even in areas where no people witnessed an eruption, they can still accurately date an eruption and the magnitude of that eruption by studying the ash.
In the 18th century the Earth experienced 35 Large Holocene Eruptions or an average of one every 2.8 years.
In the 19th century there were 43 Large Holocene Eruptions or an average of one every 2.3 years.
In the 20th century there were 67 Large Holocene Eruptions or an average of one every 1.4 years.
So far in the 21st century there have been 10 Large Holocene Eruptions or an average of one every year.
Using their own date it is easy to see that large eruptions have increased almost 300% since 1700. This cannot be explained away as anything other than the Earth is progressively getting more geologically active.
It might also interest you to know that the Yellowstone Caldera has been rising at about 3 inches per year over the last few decades, which is more than 3 times more than it rose on average over the past 300 years.
I would be interested to know how many large earthquakes there have been on average over the past 300 years.
Id be willing to bet that they too have increased is number and intensity as well.
Sources...
http://www.volcano.si.edu/reports/usgs/
http://www.volcano.si.edu/faq/index.cfm?faq=06
http://www.volcano.si.edu/world/largeeruptions.cfm
This number remained steady for several hundred years up until around 1820, when it began to rise.
By World War One, the average number of eruptions had reached 40, more than twice their average over the previous 400 years.
By the start of the Korean War, it was about 60.
The average for the past two decades or so has been between 60 and 70 eruptions per year.
The USGS explains that volcanic activity is not increasing however. They say that reporting of volcanic eruptions has increased and the actual number of eruptions has remained steady at @65 a year for thousands of years.
YEAH RIGHT.
Well, since 1694, there have been exactly 155 Large Holocene Eruptions.
A Large Holocene Eruption is a major volcanic eruption that ejects at least 0.1 square kilometer of ash and debris into the atmosphere.
Large Holocene Eruptions are so large they cannot be hidden. Even in areas where no people witnessed an eruption, they can still accurately date an eruption and the magnitude of that eruption by studying the ash.
In the 18th century the Earth experienced 35 Large Holocene Eruptions or an average of one every 2.8 years.
In the 19th century there were 43 Large Holocene Eruptions or an average of one every 2.3 years.
In the 20th century there were 67 Large Holocene Eruptions or an average of one every 1.4 years.
So far in the 21st century there have been 10 Large Holocene Eruptions or an average of one every year.
Using their own date it is easy to see that large eruptions have increased almost 300% since 1700. This cannot be explained away as anything other than the Earth is progressively getting more geologically active.
It might also interest you to know that the Yellowstone Caldera has been rising at about 3 inches per year over the last few decades, which is more than 3 times more than it rose on average over the past 300 years.
I would be interested to know how many large earthquakes there have been on average over the past 300 years.
Id be willing to bet that they too have increased is number and intensity as well.
Sources...
http://www.volcano.si.edu/reports/usgs/
http://www.volcano.si.edu/faq/index.cfm?faq=06
http://www.volcano.si.edu/world/largeeruptions.cfm