Historical clue formulations

• Spouts — 2026-05-16
• Expels — 2024-04-28
• Gushes — 2024-01-30
• Spouts — 2021-09-02
• Gushes — 2019-09-18
• Shoots out — 2018-11-10
• Expels, as lava — 2018-09-05
• Shoots out — 2018-07-29
• Shoots out — 2018-02-12
• Gushes — 2017-03-29
• Gushes — 2010-12-02
• Expels forcefully — 2010-07-27
• Gushes — 2009-09-21
• Shoots, as lava — 2009-04-06
• Ejects — 2009-03-15
• Erupts — 2009-03-09
• Shoots — 2007-01-28
• Throws off — 2004-09-11
• Gushes — 2004-04-26
• Gushes — 2001-11-19
• Issues (forth) — 1998-12-19
• Expels — 1997-02-15
• Gushes — 1996-10-13
• Erupts — 1996-02-17