1. Lake Toba
Volume of erupted tephra**: 2,800km3 (that’s 376 Loch Nesses!)
When: 74,000 years ago
2. Pacana Caldera
Volume of erupted tephra: 2,500km3
When: 4,000,000 years ago
3. Whakamaru
Volume of erupted tephra: 2,000km3
When: 340,000 years ago
4. Taupo
Volume of erupted tephra: 1,170km3
When: 26,500 years ago
5. Cerro Galán
Volume of erupted tephra: 1,050km3
When: 2,200,000 years ago
6. Yellowstone Creek
Volume of erupted tephra: 1,000km3
When: 640,000 years ago
7. Long Valley Caldera
Volume of erupted tephra: 580km3
When: 760,000 years ago
8. Tambora
Volume of erupted tephra: 160km3
When: 1815
9. Crater Lake
Volume of erupted tephra: 50km3
When: 7,600 years ago
10. Krakatoa
Volume of erupted tephra: 25km3
When: 1883
* Since early humans evolved, 4,000,000 years ago
**Rock fragments and particles