Volcanic activity correlated with prolonged solar minimum

Thought it was about time to start a post on this topic as it relates to earths climate

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Volcanic activity erupts particulate matter and chemicals that have been associated with global cooling

Salvatore Del Prete

a contributor from Tallbloke wordpresss has dished up some amazing findings

Does a steep drop in solar activity imply an equally steep drop in temperatures?

This preliminary study showed 80.6% of the largest eruptions took place during extended solar activity minimums. Significantly, the following list of the eight largest volcanic eruptions globally (VEI>6) since 1650, shows all but one took place only during a solar hibernation, or significant reduction in solar activity as measured by sunspot count.

source: Source: Smithsonian Institute.

Table 1.Volcanoes of greater than or equal to VEI of 5 from 1650 to 2009. This list of large volcanic eruptions since 1650 was used as the baseline list for comparison against solar activity, i.e. periods of reduced sunspot count to determine any apparent associations. 5* = a class five VEI with potentially large date uncertainty, P* = plinian large class eruption, assumed >VEI 5. The study did not include activity associated with geological hot spots or caldera (super volcano) sites. Source: Smithsonian Institute.
Volcano Location Year VEI
1. Shiveluch Kamchatka Penninsula 1650 5
2. Long Island N.E. New Guinea 1660 6
3. Usu Hokkaido, Japan 1663 5
4. Shikotsu Hokkaido, Japan 1667 5
5. Gamkonora Halmahera, Indonesia 1673 5*
6. Tongkoko Sulawesi, Indonesia 1680 5*
7. Fuji Honshu, Japan 1707 5
8. Katla So. Iceland 1721 5*
9. Shikotsu Hokkaido, Japan 1739 5
10. Katla So.Iceland 1755 5
11. Pago New Britain 1800 P**
12. St.Helens Washington State, USA 1800 5
13. Tambora Lesser Sunda Islands,Indo. 1815 7
14. Galungung Java, Indonesia 1822 5
15. Cosiguina Nicaragua 1835 5
16. Shiveluch Kamchatka Penninsula 1854 5
17. Askja N.E.Iceland 1875 5
18. Krakatau Indonesia 1883 6
19. Okataina New Zealand 1886 5
20. Santa Maria Guatemala 1902 6
21. Lolobau New Britain 1905 P*
22. Ksudach Kamchatka Penninsula 1907 5
23. Novarupta Alaska Penninsula 1912 6
24. Azul, Cerro Chile 1932 5+
25. Kharimkotan Kuril Islands 1933 5
26. Bezimianny Kamchatka Peninsula 1956 5
27. Agung Lesser Sunda Islands, Indo. 1963 5
28. St. Helens Washington State, USA 1980 5
29. El Chichon Mexico 1982 5
30. Pinatubo Philippines 1991 6
31. Hudson, Cerro So. Chile 1991 5+
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Table 2.Volcanic eruptions that took place during major solar minimums and solar hibernations. This table establishes the strong relationship between the largest volcanic eruptions and solar activity lows on the order of the Centennial and Bi-Centennial Cycles defined by the RC Theory.
Volcano Location Year VEI Associated Solar Minimum
1. Long Island N .E. New Guinea 1660 6 Centennial: Maunder
2. Pago* New Britain 1800 P Bi-Centennial: Dalton
3. Tambora Lesser Sunda Islands 1815 7 Bi-Centennial: Dalton
Indonesia
4. Krakatau Indonesia 1883 6 Centennial: Year 1900
5. Santa Maria Guatemala 1902 6 Centennial: Year 1900
6. Lobobau New Britain 1905 P Centennial: Year 1900
7. Novarupta Alaska Peninsula 1907 6 Centennial: Year 1900
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Salvatore DePrete suggests
“One item to remember is this period of below normal solar activity started in 2005 so the accumulation factor is coming into play.
Secondly it is not just solar activity within itself but the secondary effects associated with solar variability which I feel are extremely hard to predict as far as how strongly (to what degree)they may change and thus effect the climate in response to long prolonged minimum solar activity.
I strongly suspect the degree of magnitude change of the prolonged minimum solar activity combined with the duration of time of the prolonged minimum solar activity is going to have a great impact as to how EFFECTIVE the associated secondary effects associated with prolonged minimal solar activity may have on the climate. An example would be an increased in volcanic activity”
8. Pinatubo Philippines 1991