Today’s chart: How did the annual count of confirmed volcanic eruptions that began worldwide change from 1990 to 2004?
Friday, November 13, 2026 · Earth Science · the same chart for every player until 00:00 UTC.
How did the annual count of confirmed volcanic eruptions that began worldwide change from 1990 to 2004?
Draw from the dotted line to the right edge. 9 points are hidden.
Drag from the dotted line to draw the rest.
0%Up to 1,000 points for how closely your line tracks the real one.
How this daily puzzle works
The line is the annual count of confirmed volcanic eruptions that began worldwide, measured from 1990 to 2004 — 15 observations in total. Everything left of the dotted marker is visible; the 9 values to its right are hidden until you draw your guess and reveal. The series is drawn from Smithsonian Global Volcanism Program (v5.3.5).
Every day at 00:00 UTC a different chart from the Earth Science category or one of the other four topics takes this slot. The chart changes; the URL never does, so /today/ is always the current puzzle. Missed a day? Every past chart is kept at past daily answers, with the hidden values filled in.