Table 1.  A list of Reported eruptions of Asama, including dismissed reports.
Date   Reference M Fatalities   Remarks        
1990.0720 Kisyo Yoran 0 0 ashfall up to 8km from the summit
1983.0408 Hayakawa (1993) 1 0 ashfall in Maebashi, Utsunomiya, Onahama
1982.0426 Aramaki and Hayakawa (1982) 1.0 0 ashfall in Tokyo
1973.0201 Aramaki (1973) 1 0 small pyroclastic flows
1961.0818 newspaper and Kisyo Yoran 1 1 climber killed at 14:41, ashfall in Mishima and Ajiro
1950.0923 newspaper 1 1 climber killed at 04:37, ashfall in Maebashi (88g/m2), Mito, Tokyo (1.2g/m2)
1947.0814 newspaper and Kisyo Yoran 1 11 climbers killed at 12:17, ashfall in Maebashi and Yamada Onsen
1941.0713 Kisyo Yoran 1 1 climber killed at 13:05
1938.0716 Kisyo Yoran 1 a few climbers killed at 13:01, ashfall in Kofu, 400g/m2 at 20km S of the summit
1936.1017 newspaper 1 1 climber killed at 09:34
1936.0729 Kisyo Yoran 1 1 climber killed 09:10, ashfall in Choshi (0.3g/m2)
1931.0820 newspaper 3? climbers killed at 03:21, ashfall in W part of Fukushima Prefecture
1930.0820 newspaper 1 6 climbers killed at 08:14, ashfall in Maebashi and Ashio
1913.0529 newspaper 1 1 climber killed at 10:44
1911.0815 newspaper 1 >2 climbers killed at 04:30
1911.0508 newspaper 1 1 climber killed at 15:30
1900.0715 Simkin and Siebert (1994)  1 Reported 25 fatalities is a misinterpretation of the tragedy at Adatara.
1783.0508 Tamura and Hayakawa (1995) 5 1400 Two killed by fallout on August 4, 1400 killed by a debris avalanche 
and induced lahar on August 5.
1721.0622 Asamayama Oyake Muni  1 15 killed at the summit.
Monogatari
1598.0513 Todaiki Description that 800 people were killed at the summit is unreasonable.
1596.0501 Tenmei Shinjo Hen'iki 3 some not a contemporary document. Pele's hair-fall was observed in Kyoto.
1532.0104 Tenmei Shinjo Hen'iki 2 not a contemporary document. Villages along the Jabori River were, 
reportedly, swept away by hot lahars.
1281.0700 Koshiden not a contemporary document. unreliable
1108.0829 Chuyuki 5 the largest eruption of Asama through the Holocene
887.0000 Echigo Nendaiki an eruption of Niigata Yakeyama
685.0000   Nihon Shoki       probably an eruption from another volcano    
JMA: Japan Meteorological Agency
Kisyo Yorai is an monthly publication of JMA.
M is eruption magnitude defined by M = log m -7, where m is mass of magma erupted in kg.