April 1923 Kamchatka earthquake and tsunami - Wikipedia
1923 kamchatka mega tsunami and earthquake
1921 solar super storm
June 30, 1908 Russian Tunguska Meteor impact
1908 Italy earthquake and 40 foot tsunamis
1907 Japan earthquake and mega tsunami hitting california
1906 south America and california earthquake
1883 krakatoa massive volcanic event with mega tsunamic and global massive aftershocks
1859 sep massive solar storm taking out telegraph stations with fires
500-600 A.D. dark ages mega Iceland or Greenland volcanoes bubonic plague, months of ash darkness over west areas
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