Volcano Name: San Juan Smithsonian Inst ID (SI_VNUM): 341810
Alternate Name:
Cerro Alto
Volcano Type: Stratovolcano(es)
Latitude: 21.4666666700
Longitude: -104.9666667000
Region: México and Central America Sub Region: México
Date Entered: 02/05/2012

Eruption Details

Eruption Start Date: 18020 BP Date Error: 529
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: High quality Preferred Date: Y
C14 Date: 14770 C14 Date Error: 480
Bulk DRE Volume (km3): 1.200 (Literature)
Bulk deposit volume (km3): 5.600 (Literature)
Ignimbrite DRE Volume (km3): < 0.040 (Literature)
Ignimbrite Deposit Volume : < 0.100 (Literature)
Magnitude : 5.500 (Calculated)
Maximum Column Height (km): 24.000 (Literature)
Maximum Intensity : 10.780 (Eruption Rate)
Maximum VEI : 5.000 (Literature)
Minimum Column Height (km): 15.000 (Literature)
Minimum Intensity : 9.480 (Eruption Rate)
Tephra fall DRE Volume (km3): 1.160 (Calculated)
Tephra fall Deposit Volume (km3): 5.500 (Literature)
Magma: Dacite
Calculated Density:
Rock Classification:
Dacite
(Minor/less than 10%) Andesite
Eruption Start Date: 27616 BP Date Error: 662
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: Medium quality Preferred Date: Y
C14 Date: 23010 C14 Date Error: 570
Bulk DRE Volume (km3): < 1.200 (Literature)
Bulk deposit volume (km3): < 5.600 (Literature)
Ignimbrite DRE Volume (km3): < 1.200 (Literature)
Ignimbrite Deposit Volume : < 5.600 (Literature)
Magnitude : 5.500 (Calculated)
Maximum VEI : 5.000 (Calculated)
Magma: Dacite
Calculated Density:
Rock Classification:
Dacite
Eruption Start Date: 39097 BP Date Error: 1749
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: Medium quality Preferred Date: Y
C14 Date: 33750 C14 Date Error: 1800
Bulk DRE Volume (km3): < 1.200 (Literature)
Bulk deposit volume (km3): < 5.600 (Literature)
Ignimbrite DRE Volume (km3): < 1.200 (Literature)
Ignimbrite Deposit Volume : < 5.600 (Literature)
Magnitude : 5.500 (Calculated)
Maximum VEI : 5.000 (Calculated)
Magma: Dacite
Calculated Density:
Rock Classification:
Dacite

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