Volcanodle
Puzzle #28 was Atka Volcanic Complex.
The Atka Volcanic Complex consists of a central shield and Pleistocene caldera and four notable volcanic cones. A major explosive dacitic eruption accompanied formation of the caldera about 500,000 to 300,000 years ago; approximately half of the caldera rime remains, open towards the NW.
Read about it at the Global Volcanism Program →
Global Volcanism Program, Smithsonian Institution
What the record says
Puzzle 28 ran on 6 Aug 2026 and the answer was Atka Volcanic Complex, played with 6 guesses against 8 columns. On the record: Country - United States; Region - North America Volcanic Regions; Type - stratovolcano; Tectonic setting - subduction; Elevation - 1500-3000; Last eruption - 21st-century; Rock type - basalt; Historically observed - observed.
Beyond the grid the record adds Largest recorded eruption - VEI 3; Holocene eruptions recorded - 18 eruptions.
Volcanodle builds its record from Global Volcanism Program, Smithsonian Institution (Venzke, E. (ed.), Volcanoes of the World, volcano.si.edu). The description above comes from the same place the game credits on every reveal: A verbatim excerpt of the volcano's GVP Geological Summary. The puzzle itself is still playable in the archive, and every answer that has been and gone is listed on the past-answers page.
How it scored
- Country
- United States
- Region
- North America Volcanic Regions
- Type
- stratovolcano
- Tectonic setting
- subduction
- Elevation
- 1500-3000
- Last eruption
- 21st-century
- Rock type
- basalt
- Historically observed
- observed
Also on the record
- Largest recorded eruption
- VEI 3
- Holocene eruptions recorded
- 18 eruptions