scholarly journals Age of the Kumakura Pumice Fall Deposit Erupted from Kusatsu-Shirane Volcano, Central Japan

1988 ◽  
Vol 40 (4) ◽  
pp. 272-275 ◽  
Author(s):  
Tsutomu SODA ◽  
Takeshi NOTO ◽  
Fusao ARAI
Keyword(s):  
Fall Deposit ◽  
Central Japan ◽  
Pumice Fall

Cyclic shear property and seismic runout analysis for pumice fall deposit

2021 ◽  
Vol 143 ◽  
pp. 106588
Author(s):  
Kiyonobu Kasama ◽  
Zentaro Furukawa ◽  
Noriyuki Yasufuku
Keyword(s):  
Fall Deposit ◽  
Cyclic Shear ◽  
Shear Property ◽  
Pumice Fall ◽  
Runout Analysis

scholarly journals The Pumice-Fall Deposit "Pm-1" Supplied from Ontake Volcano:Study of the Pumice-Fall Deposit "Pm-1" supplied from Ontake Volcano No.1

1967 ◽  
Vol 73 (6) ◽  
pp. 291-308 ◽  
Author(s):  
Kunio KOBAYASHI ◽  
Hideki SHIMIZU ◽  
Kazuo KITAZAWA ◽  
Takehiko KOBAYASHI
Keyword(s):  
Fall Deposit ◽  
Ontake Volcano ◽  
Pumice Fall

scholarly journals Total mass estimate of the January 23, 2018, phreatic eruption of Kusatsu-Shirane Volcano, central Japan

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Nobuko Kametani ◽  
Yasuo Ishizaki ◽  
Mitsuhiro Yoshimoto ◽  
Fukashi Maeno ◽  
Akihiko Terada ◽  
...  
Keyword(s):  
Total Mass ◽  
Integration Method ◽  
Phreatic Eruption ◽  
Fall Deposit ◽  
Central Japan ◽  
Fitting Method ◽  
Mass Estimate ◽  
Pyroclastic Cone ◽  
Main Crater ◽  
Eruption Plume

AbstractOn January 23, 2018, a small phreatic eruption (VEI = 1) occurred at the Motoshirane Pyroclastic Cone Group in the southern part of Kusatsu-Shirane Volcano in central Japan. The eruption ejected ash, lapillus, and volcanic blocks from three newly opened craters: the main crater (MC), west crater (WC), and south crater (SC). Volcanic blocks were deposited up to 0.5 km from each crater. In contrast, the ash released during this eruption fell up to 25 km ENE of the volcano. The total mass of the fall deposit generated by the eruption was estimated using two methods, yielding total masses of 3.4 × 104 t (segment integration method) and 2.4 × 104 t (Weibull fitting method). The calculations indicate that approximately 70% of the fall deposit was located within 0.5 km of the craters, which was mainly attributed to the low height of the eruption plume.

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