Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Zaozan [Zaosan]
Okama crater of Goryu-dake, the most well-known feature of the Zao volcanic complex, is seen from the east. The 360-m-wide lake is about 60 m deep. The volcanic lake has been the site of many historical eruptions. White mud deposited on the lake floor is periodically disturbed by gas emission, changing the color of the lake water. The Zao volcano group, the most active of northern Honshu, consists of a complex cluster of stratovolcanoes straddling the Pacific Ocean-Japan Sea divide. Copyrighted photo by Yoshihisa Kawanabe (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/).
Volcano Number:283190
Volcano Name:Zaozan [Zaosan]
Country:Japan
Volcano Type:Complex
Last Eruption:1940 CE
Elevation:1841m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:632
Pop. within 10km:4681
Pop. within 30km:550409
Pop. within 100km:4956958
Latitude:38.144
Longitude:140.44



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
283190 Zaozan [Zaosan] 17938 Confirmed Eruption Goshiki-dake area Radiocarbon (corrected) -7600
283190 Zaozan [Zaosan] 17939 Confirmed Eruption Goshiki-dake Z-To5a tephra Radiocarbon (corrected) -5600
283190 Zaozan [Zaosan] 17940 Confirmed Eruption Goshiki-dake area Radiocarbon (corrected) -5500
283190 Zaozan [Zaosan] 17941 Confirmed Eruption Goshiki-dake area Z-To5b tephra Radiocarbon (corrected) -4150
283190 Zaozan [Zaosan] 17942 Confirmed Eruption Goshiki-dake area Z-To5 tephra Radiocarbon (corrected) -3850
283190 Zaozan [Zaosan] 17943 Confirmed Eruption Goshiki-dake area Z-To6 tephra Radiocarbon (corrected) -3350
283190 Zaozan [Zaosan] 17944 Confirmed Eruption Goshiki-dake area Z-To7 tephra Radiocarbon (corrected) -2600
283190 Zaozan [Zaosan] 17945 Confirmed Eruption Goshiki-dake area Z-To8 tephra Radiocarbon (corrected) -2300
283190 Zaozan [Zaosan] 17946 Confirmed Eruption Goshiki-dake Tephrochronology -2000
283190 Zaozan [Zaosan] 17947 Confirmed Eruption Goshiki-dake Radiocarbon (corrected) -1600
283190 Zaozan [Zaosan] 17948 Confirmed Eruption 4 Goshiki-dake area Z-To9 tephra Radiocarbon (corrected) 300
283190 Zaozan [Zaosan] 17949 Uncertain Eruption Okama 773
283190 Zaozan [Zaosan] 17950 Confirmed Eruption 3 Okama Z-To10 tephra? Historical Observations 884
283190 Zaozan [Zaosan] 17951 Confirmed Eruption 2 ? Okama Historical Observations 1183/5/28
283190 Zaozan [Zaosan] 17952 Confirmed Eruption 3 Okama Historical Observations 1227
283190 Zaozan [Zaosan] 17953 Confirmed Eruption 2 ? Okama Historical Observations 1230/11/29
283190 Zaozan [Zaosan] 17954 Uncertain Eruption 2 ? Okama 1331 1333
283190 Zaozan [Zaosan] 17955 Uncertain Eruption 2 ? Okama 1350
283190 Zaozan [Zaosan] 17956 Confirmed Eruption 3 Goshiki-dake area Z-To11 tephra Radiocarbon (corrected) 1400
283190 Zaozan [Zaosan] 17957 Confirmed Eruption 2 ? Okama Historical Observations 1620
283190 Zaozan [Zaosan] 17958 Confirmed Eruption 2 ? Okama Historical Observations 1622
283190 Zaozan [Zaosan] 17959 Confirmed Eruption 3 Okama Historical Observations 1623/5/15 1624/11/15
283190 Zaozan [Zaosan] 17960 Confirmed Eruption 2 ? Okama Historical Observations 1630
283190 Zaozan [Zaosan] 17961 Confirmed Eruption 2 ? Okama Historical Observations 1641
283190 Zaozan [Zaosan] 17962 Confirmed Eruption 2 ? Okama Historical Observations 1668
283190 Zaozan [Zaosan] 17963 Confirmed Eruption 3 Okama Historical Observations 1669
283190 Zaozan [Zaosan] 17964 Confirmed Eruption 2 Okama Historical Observations 1670/4/26 1670/9/26
283190 Zaozan [Zaosan] 17965 Confirmed Eruption 2 Okama Historical Observations 1694/5/29 1694/8/30
283190 Zaozan [Zaosan] 17966 Confirmed Eruption 2 SE side of Okama Historical Observations 1794/9/22 1794
283190 Zaozan [Zaosan] 17967 Confirmed Eruption 2 Okama Historical Observations 1796/3/24
283190 Zaozan [Zaosan] 17968 Confirmed Eruption 2 Okama Historical Observations 1804
283190 Zaozan [Zaosan] 17969 Confirmed Eruption 2 Okama Historical Observations 1806/7/12
283190 Zaozan [Zaosan] 17970 Confirmed Eruption 2 Okama Historical Observations 1809/6/12 1809/12/29
283190 Zaozan [Zaosan] 17971 Confirmed Eruption 2 Okama Historical Observations 1821/1/27 1821/5/1
283190 Zaozan [Zaosan] 17972 Confirmed Eruption Historical Observations 1822/5/1
283190 Zaozan [Zaosan] 17973 Confirmed Eruption 2 Okama Historical Observations 1830
283190 Zaozan [Zaosan] 17974 Confirmed Eruption 2 Okama Historical Observations 1831/11/22
283190 Zaozan [Zaosan] 17975 Confirmed Eruption 2 Okama Historical Observations 1833
283190 Zaozan [Zaosan] 17976 Confirmed Eruption 2 Okama Historical Observations 1867/10/21
283190 Zaozan [Zaosan] 17977 Confirmed Eruption 1 ? Okama Historical Observations 1873 1873
283190 Zaozan [Zaosan] 17978 Uncertain Eruption 1 ? Okama 1890
283190 Zaozan [Zaosan] 17979 Confirmed Eruption 2 ? Okama Historical Observations 1894/7/3 1894/7/3
283190 Zaozan [Zaosan] 17980 Confirmed Eruption 1 Okama Historical Observations 1895/2/15 1895/3/22
283190 Zaozan [Zaosan] 17981 Confirmed Eruption 2 Okama Historical Observations 1895/8/22 1895/9/28
283190 Zaozan [Zaosan] 17982 Confirmed Eruption 1 Okama Historical Observations 1896/3/8 1896/3/8
283190 Zaozan [Zaosan] 17983 Uncertain Eruption 1 ? Okama 1896/9/1
283190 Zaozan [Zaosan] 17984 Uncertain Eruption 1 ? Okama 1897/1/14 1897/1/14
283190 Zaozan [Zaosan] 17985 Confirmed Eruption 1 ? Okama Historical Observations 1905
283190 Zaozan [Zaosan] 17987 Uncertain Eruption 1 ? Okama 1927
283190 Zaozan [Zaosan] 17988 Uncertain Eruption 1 ? Okama 1939
283190 Zaozan [Zaosan] 17989 Confirmed Eruption 1 Okama Historical Observations 1940/5/18 1940/5/18
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.


Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
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