Reference:
T.ISHIKAWA, M.MINATO, H.KUNO, T.MATUMOTO and K.YAGI, "WELDED TUFF AND DEPOSITS OF PUMICE FLOW AND NUEE ARDENTE IN JAPAN", CONGRESO GEOLOGICO INTERNACIONAL, MEXICO,D.F, p.137-150 (1957).
| Amount of the pyroclastic deposits
iMore than 10km3j
| No.
| Name
| Area
(km2)
| Max. thickness
(m)
| Ave. thickness
(m)
| Amount
(km3)
|
| 1
| Mashu
| |
| 70
| 50
| 25-30
|
| 2
| Kitami
| 268
| |
| 50
| 13
|
| 3
| Tokati
| 1250
| 250
| 50
| 60+
|
| 4
| Shikotu
| 1200
| 300
| 50
| 60
|
| 5
| Tohya
| 370
| 200
| 50
| 19+
|
| 6
| Towada
| 900
| |
| 50
| 45
|
| 7
| Hakone
| 300
| |
| 50
| 15
|
| 8
| Hida
| >200
| |
| 100
| >20
|
| 9
| Yabakei
| 350
| |
| 100
| 35
|
| 10
| Kujyu
| 139
| |
| 80
| 11
|
| 11
| Aso
| 3504
| |
| 50
| 175
|
| 12
| Aira
| 3870
| |
| 40
| 155
|
| 13
| Ata
| 668
| |
| 40
| 27
|
| 