Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Kusatsu-Shiranesan
The summit of Kusatsu-Shirane volcano is cut by three craters, the largest of which is Yu-gama, filled by a turquoise lake. Rafts of yellow sulfur float on the surface of the acidic lake. This 1977 view looks across the lake from the SW-most crater, Kara-gama, to the NE-most crater, Mizu-gama, located beyond the notch at the left. Small-to-moderate phreatic explosions have occurred from all three craters during historical time. The colorful crater lake of Kusatsu-Shirane is a major tourist destination, as are hot spring resorts on the volcano's flanks. Photo by Lee Siebert, 1977 (Smithsonian Institution).
Volcano Number:283120
Volcano Name:Kusatsu-Shiranesan
Country:Japan
Volcano Type:Stratovolcano(es)
Last Eruption:2018
Elevation:2165m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:4485
Pop. within 10km:14296
Pop. within 30km:434049
Pop. within 100km:5947593
Latitude:36.618
Longitude:138.528



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
283120 Kusatsu-Shiranesan 17816 Confirmed Eruption 3 Shirane Radiocarbon (corrected) -6550
283120 Kusatsu-Shiranesan 17817 Confirmed Eruption Radiocarbon (uncorrected) -6270
283120 Kusatsu-Shiranesan 17818 Confirmed Eruption 2 Shirane Radiocarbon (corrected) -3750
283120 Kusatsu-Shiranesan 17819 Confirmed Eruption 4 Moto-Shirane Radiocarbon (uncorrected) -1120
283120 Kusatsu-Shiranesan 17820 Confirmed Eruption 3 Yu-gama Tephra layer 13D Tephrochronology -550
283120 Kusatsu-Shiranesan 17821 Confirmed Eruption 2 Yu-gama Tephra layer 13.7D Tephrochronology 50
283120 Kusatsu-Shiranesan 17822 Confirmed Eruption Radiocarbon (uncorrected) 1470
283120 Kusatsu-Shiranesan 17823 Confirmed Eruption 2 Yu-gama Historical Observations 1805
283120 Kusatsu-Shiranesan 17824 Confirmed Eruption 2 Yu-gama, NE end of Kara-gama Historical Observations 1882/8/6 1882/8/16
283120 Kusatsu-Shiranesan 17825 Confirmed Eruption 2 NE part of Yu-gama Historical Observations 1897/7/8 1897/8/16
283120 Kusatsu-Shiranesan 17826 Confirmed Eruption 1 NE part of Yu-gama Historical Observations 1900/10/1 1900/10/1
283120 Kusatsu-Shiranesan 17827 Confirmed Eruption 1 North side of Yumi-ike Historical Observations 1902/7/15 1902/9/24
283120 Kusatsu-Shiranesan 17828 Uncertain Eruption 1903
283120 Kusatsu-Shiranesan 17829 Confirmed Eruption 2 Yu-gama Historical Observations 1905 1905
283120 Kusatsu-Shiranesan 17830 Confirmed Eruption 2 Northern part of Yu-gama Historical Observations 1925/1/22 1925/1/30
283120 Kusatsu-Shiranesan 17831 Confirmed Eruption 2 N Yu-gama & S outer rim (in 1927, not 1928) Historical Observations 1927/12/29 1927/12/31
283120 Kusatsu-Shiranesan 17832 Confirmed Eruption 3 NE part of Yu-gama, SE outer rim Historical Observations 1932/10/1 1932
283120 Kusatsu-Shiranesan 17833 Uncertain Eruption 1933
283120 Kusatsu-Shiranesan 17834 Confirmed Eruption 2 Historical Observations 1934
283120 Kusatsu-Shiranesan 17835 Confirmed Eruption 1 Yu-gama Historical Observations 1937/11/27 1938/2/16
283120 Kusatsu-Shiranesan 17836 Confirmed Eruption 1 Yu-gama Historical Observations 1938/7/17 1938/10/5
283120 Kusatsu-Shiranesan 17837 Confirmed Eruption 1 Yu-gama Historical Observations 1939 1939/8/28
283120 Kusatsu-Shiranesan 17838 Confirmed Eruption 1 ? Historical Observations 1940/4/7 1940/9/13
283120 Kusatsu-Shiranesan 17839 Confirmed Eruption 1 ? Historical Observations 1941/1/19 1941/1/19
283120 Kusatsu-Shiranesan 17840 Confirmed Eruption 1 Fissure east and south of Yu-gama Historical Observations 1942/2/2
283120 Kusatsu-Shiranesan 17841 Confirmed Eruption 1 Yu-gama Historical Observations 1958/12/31
283120 Kusatsu-Shiranesan 17842 Confirmed Eruption 1 NE corner of Mizu-gama Crater Historical Observations 1976/3/2 1976/3/2
283120 Kusatsu-Shiranesan 17843 Confirmed Eruption 1 Kara-gama, Yu-gama Historical Observations 1982/10/26 1982/12/29
283120 Kusatsu-Shiranesan 17844 Confirmed Eruption 1 Yu-gama, Kara-gama Historical Observations 1983/7/26 1983/12/21
283120 Kusatsu-Shiranesan 17845 Uncertain Eruption 1 NW part of Yu-gama 1989/1/6 1989/1/6
283120 Kusatsu-Shiranesan 22258 Confirmed Eruption 1 Motoshiranesan Historical Observations 2018/1/23 2018/1/23
Emissions Data from the Global Volcanism Program of the Smithsonian Institution No emissions data found for this volcano.


Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
Location: Kusatsu-Shirane (View Details at MaGa DB)
Description: It is a 2160-meter active volcano in Kusatsu, Gunma, Japan. The summit of Kusatsu-Shirane volcano, located immediately north of Asama volcano, consists of a series of overlapping pyroclastic cones and three crater lakes.
Hazard Description: not reported
Type: soil_diffuse_emission
Region: Gunma Prefecture, Japan
Country: Japan
Volcanic Complex: Kusatsu-Shirane
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Kusatsu-Shirane_01012004 Detail CO2 1.4 0 Mg/d