Mega Tsunami Introduction

• Video focuses on potential future natural disaster vs. historical events
• Mega tsunamis: rare events where nature multiplies already scary forces
• Atlantic Ocean most important for mega tsunami generation
  • Large number of active oceanic volcanic islands
  • Some volcanoes showing early instability signs

Cumbre Vieja Volcano Background

• Location: La Palma island, Canary Islands, off West Africa coast
• Recent eruptions: 1949, 1971
• 1999 paper by geologist Simon Day first noticed anomaly
  • Western flank becoming unstable
  • Initial stages of collapse detected
• Future papers hypothesized: each eruption increases instability
• Eventually eruption big enough to cause entire chunk collapse into ocean

Collapse Scenario Details

• 2005 paper estimates: 150-500 cubic kilometers of rock
• Worst-case scenario: 500 cubic kilometers
• Initial impact creates 900-meter tall water dome (taller than Burj Khalifa)
• Dome transforms into 600-meter high wave
• Wave speed: 720 km/h (jet aircraft speed)

Regional Impact Predictions

Canary Islands

• Several hundred meter high titanic tsunamis hit western shores
• 50-100 meter waves impact African west coast

Europe

• Canary Islands act like Jupiter shield for Europe
• Spain/England: 5-7 meter waves, minor damage only

Americas (after 9-hour travel)

• Newfoundland, Canada: 10-meter waves
• Northern South America (Brazil to Venezuela): 15-20 meter waves
• Florida: 20-25 meter waves (worst impact)
  • Severe damage to Miami, Jacksonville
  • Size comparable to 2004 Indian Ocean tsunami Indonesia
• US East Coast: 10-25 meter waves
  • Cities affected: Charleston, New York, Boston

Scientific Criticism & Context

• Worst-case scenario with significant scientific criticism
• Paper criticized for being too alarmist
• Mega tsunamis common on geological timescale
  • Evidence shows dozens of Atlantic events over past million years
  • Incredibly uncommon on human timescale

Historical Precedent

• Only recorded similar event: 1888 Ritter Island, Papua New Guinea
  • 5 cubic kilometers rock collapse
  • 15-meter tsunami
  • Much smaller than Cumbre Vieja scenario

Reality Check

• Described scenario is worst-case
• Actual collapse could be significantly smaller mass
• Smaller tsunami may not cross Atlantic
• Timeline: several thousand years from now, not current lifetimes
• Future humans will hopefully solve problem
• Only current worry: supervillain artificially triggering collapse