Volcano Name: Atacazo Smithsonian Inst ID (SI_VNUM): 352021
Alternate Name:
Arenal I
Arenal II
Cuscungo
Gallo Cantano
La Caracha
La Cocha I
La Cocha II
La Viudita
Minasguilca Chico
Ninahuilca
Ninahuilca Chico I
Ninahuilca Chico II
Omoturco
Volcano Type: Stratovolcano(es)
Latitude: -0.3527777780
Longitude: -78.6169444400
Region: South America Sub Region: Ecuador
Date Entered: 02/05/2012

Eruption Details

Eruption Start Date: -282 Date Error: 76
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: High quality Preferred Date: Y
C14 Date: 2267 C14 Date Error: 17
Bulk DRE Volume (km3): 0.750 (Calculated)
Bulk deposit volume (km3): 1.800 (Literature)
Ignimbrite DRE Volume (km3): 0.250 (Calculated)
Ignimbrite Deposit Volume : 0.600 (Literature)
Magnitude : 5.300 (Calculated)
Maximum VEI : 5.000 (Literature)
Tephra fall DRE Volume (km3): 0.500 (Calculated)
Tephra fall Deposit Volume (km3): 1.200 (Literature)
Magma: Dacite
Calculated Density:
Rock Classification:
Dacite
Eruption Start Date: -3090 Date Error: 180
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: Medium quality Preferred Date: Y
C14 Date: 4400 C14 Date Error: 35
Bulk DRE Volume (km3): > 0.710 (Calculated)
Bulk deposit volume (km3): > 1.700 (Literature)
Magnitude : > 5.200 (Calculated)
Maximum VEI : 5.000 (Literature)
Tephra fall DRE Volume (km3): 0.710 (Calculated)
Tephra fall Deposit Volume (km3): 1.700 (Literature)
Magma: Dacite
Calculated Density:
Rock Classification:
Dacite
Eruption Start Date: -4197 Date Error: 140
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: Medium quality Preferred Date: Y
C14 Date: 5440 C14 Date Error: 110
Bulk DRE Volume (km3): >= 0.040 (Assumed)
Bulk deposit volume (km3): >= 0.100 (Assumed)
Magnitude : >= 4.000 (Assumed)
Maximum VEI : >= 4.000 (Assumed)
Eruption Start Date: 9903 BP Date Error: 217
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: Medium quality Preferred Date: Y
C14 Date: 8860 C14 Date Error: 70
Bulk DRE Volume (km3): >= 0.040 (Assumed)
Bulk deposit volume (km3): >= 0.100 (Assumed)
Magnitude : >= 4.000 (Assumed)
Maximum VEI : >= 4.000 (Assumed)

Data downloads

Alternate Property downloads