Volcano Name:Toba Smithsonian Inst ID (SI_VNUM): 261090
Alternate Name:
Dolok Batuharang
Dolok Sibutan
Dolok Singgalang
Dolok Tandukbenua
Haranggaol
Nabelberg
Poesoek Boekit
Porsea
Pusukbukit
Sibandung
Sipisopiso
Volcano Type:Caldera(s)
Latitude: 2.5833333330
Longitude: 98.8333333300
Region:Indonesia Sub Region:Sumatra
Date Entered:02/05/2012
 
Eruption Details
Eruption Start Date:74000 BP Date Error:3000
Eruption End Date: Dating Technique:Other technique
Eruption Date Quality:Medium quality Preferred Date:Y
Bulk DRE Volume (km3): 2750.000 (Literature)
Bulk deposit volume (km3): 2800.000 (Literature)
Ignimbrite DRE Volume (km3): 1000.000 (Literature)
Ignimbrite Deposit Volume : 2300.000 (Calculated)
Magnitude : 8.800 (Literature)
Maximum Column Height (km): 80.000 (Literature)
Maximum Intensity : 12.880 (Column Height)
Maximum VEI : 8.000 (Literature)
Minimum Column Height (km): 50.000 (Literature)
Minimum Column Height (km): 12.070 (Column Height)
Primary Intracaldera Material DRE Volume (km3): 1000.000 (Literature)
Primary Intracaldera Material Deposit Volume (km3): 2300.000 (Literature)
Tephra fall DRE Volume (km3): 750.000 (Literature)
Tephra fall Deposit Volume (km3): 1725.000 (Calculated)
Magma: Dacite-Rhyolite
Calculated Density:
Rock Classification:
Dacite
Rhyolite
Eruption Start Date:501000 BP Date Error:5000
Eruption End Date: Dating Technique:Ar-Ar
Eruption Date Quality:Medium quality Preferred Date:Y
Bulk DRE Volume (km3): 26.090 (Calculated)
Bulk deposit volume (km3): 60.000 (Literature)
Magnitude : 7.100 (Literature)
Maximum VEI : 7.000 (Literature)
Tephra fall DRE Volume (km3): 60.000 (Literature)
Tephra fall Deposit Volume (km3): 60.000 (Literature)
Magma: Rhyolite
Calculated Density:
Rock Classification:
Rhyolite
Eruption Start Date:840000 BP Date Error:
Eruption End Date: Dating Technique:Not Available
Eruption Date Quality:Not Entered Preferred Date:Y
Bulk DRE Volume (km3): 800.000 (Literature)
Bulk deposit volume (km3): 820.000 (Literature)
Magnitude : 8.400 (Literature)
Maximum VEI : 8.000 (Literature)
Magma: Dacite-Rhyolite
Calculated Density:
Rock Classification:
Dacite
Rhyolite
Eruption Start Date:1200000 BP Date Error:160000
Eruption End Date: Dating Technique:ITPFT isothermal plateau fission track age
Eruption Date Quality:Medium quality Preferred Date:Y
Bulk DRE Volume (km3): 35.000 (Literature)
Bulk deposit volume (km3): 80.500 (Calculated)
Magnitude : 8.000 (Literature)
Maximum VEI : 6.000 (Literature)
Magma: Dacite
Calculated Density:
Rock Classification:
Dacite

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