1980's project - disasters

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Across
  1. 2. Mount Saint Helen's volcanic explosivity index rating
  2. 7. What main piece of infrastructure was destroyed in the El Asnam earthquake
  3. 10. About how many people were killed by Mount Saint Helen's eruption
  4. 11. What made response to the Exxon disaster difficult
  5. 12. What country the El Asnam earthquake occurred in
Down
  1. 1. Number of human casualties involved in the Exxon oil spill
  2. 3. Chernobyl's town
  3. 4. World's worst nuclear disaster
  4. 5. How many US states Mount Saint Helen's eruption column deposited ash into
  5. 6. Supertanker Exxon _
  6. 8. What was the maximum Mercalli intensity of the El Asnam earthquake
  7. 9. Type of childhood cancer that occurred in populations near Chernobyl