Table 1 Number of eruptive events for different VEI and time periods. VEIs estimated by Suto et al. (2007)
From: Creating a digital database of tephra fallout distribution and frequency in Japan
VEI | 1 | 2 | 3 | 4 | 5 | 6 | ≥7 | Total |
|---|---|---|---|---|---|---|---|---|
Holocene (younger than 10 ka) | 21 | 25 | 121 | 47 | 18 | 2 | 1 | 235 |
Younger than 50 ka | 21 | 25 | 152 | 112 | 60 | 9 | 2 | 381 |
Younger than 100 ka | 21 | 25 | 161 | 137 | 87 | 13 | 4 | 448 |
Younger than 150 ka | 21 | 25 | 165 | 148 | 100 | 16 | 6 | 481 |
Total number of events | 21 | 25 | 167 | 162 | 106 | 16 | 6 | 503 |