Daily chart answer for Monday, October 26, 2026
How did the annual count of confirmed volcanic eruptions that began worldwide change from 1975 to 1989? Earth Science · 15 observations · Smithsonian Global Volcanism Program (v5.3.5).
Solid line = the part players could see · dashed violet = the daily chart’s hidden stretch, revealed here.
What happened
After the visible part ended on 1980, it ticked down 37.5% to finish at 25. Players saw the first 6 of 15 observations before drawing. From 23 to 25, the full span nets out up 8.7%. The period high of 41 came in 1986; the low of 23, in 1975. The biggest one-step move was a 35.9% downward in 1978. Data: Smithsonian Global Volcanism Program (v5.3.5).
The hidden values
After the cutoff (1980), the series printed:
| Date | Actual value |
|---|---|
| 1981 | 29 |
| 1982 | 32 |
| 1983 | 32 |
| 1984 | 33 |
| 1985 | 27 |
| 1986 | 41 |
| 1987 | 32 |
| 1988 | 27 |
| 1989 | 25 |
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