Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Pagan
Pagan Island, the largest and one of the most active of the Mariana Islands, consists of two stratovolcanoes connected by a narrow isthmus. Both the North and South Pagan stratovolcanoes were constructed within calderas. North Pagan, the most active of the two, is seen here from the west coast of the isthmus SW of the summit. The 570-m-high North Pagan was constructed within a 7-km-wide caldera. South Pagan is a 548-m-high stratovolcano with an elongated summit containing four distinct craters. Photo by Norm Banks, 1983 (U.S. Geological Survey).
Volcano Number:284170
Volcano Name:Pagan
Country:United States
Volcano Type:Stratovolcano(es)
Last Eruption:2012
Elevation:570m
Tectonic Setting:Subduction zone / Crustal thickness unknown
Pop. within 5km:0
Pop. within 10km:0
Pop. within 30km:0
Pop. within 100km:0
Latitude:18.13
Longitude:145.8



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
284170 Pagan 18503 Confirmed Eruption North Pagan (west flank maar) Radiocarbon (corrected) 1340
284170 Pagan 18504 Confirmed Eruption North Pagan Historical Observations 1669
284170 Pagan 18505 Confirmed Eruption North Pagan (west flank maar) Radiocarbon (uncorrected) 1800
284170 Pagan 18506 Confirmed Eruption 2 ? North Pagan Historical Observations 1825
284170 Pagan 18507 Confirmed Eruption 1 ? South Pagan Historical Observations 1864
284170 Pagan 18508 Confirmed Eruption 3 ? North Pagan Historical Observations 1873
284170 Pagan 18509 Confirmed Eruption 2 North Pagan Historical Observations 1909
284170 Pagan 18510 Confirmed Eruption 2 North Pagan Historical Observations 1917
284170 Pagan 18511 Confirmed Eruption 3 North Pagan Historical Observations 1923 1923/3/26
284170 Pagan 18512 Confirmed Eruption 2 Historical Observations 1925 1925/5/5
284170 Pagan 18513 Uncertain Eruption South Pagan, cone within caldera 1929 1930
284170 Pagan 18515 Confirmed Eruption 4 North Pagan (summit and north flank) Historical Observations 1981/5/15 1985/5/1
284170 Pagan 18516 Confirmed Eruption 1 North Pagan Historical Observations 1987/9/4 1987/9/4
284170 Pagan 18517 Uncertain Eruption North Pagan 1988/2/16
284170 Pagan 18518 Confirmed Eruption 2 North Pagan Historical Observations 1988/8/24 1988/10/12
284170 Pagan 18519 Confirmed Eruption 1 ? North Pagan Historical Observations 1992/4/13 1992/4/13
284170 Pagan 18520 Confirmed Eruption 2 North Pagan Historical Observations 1993/1/15 1993/11/16
284170 Pagan 18521 Confirmed Eruption 1 North Pagan Historical Observations 1996/7/2
284170 Pagan 18522 Confirmed Eruption 1 North Pagan Historical Observations 2006/12/4 2006/12/8
284170 Pagan 18523 Uncertain Eruption 2 North Pagan 2009/4/15
284170 Pagan 18524 Confirmed Eruption 1 North Pagan Historical Observations 2010/5/3 2010/8/11
284170 Pagan 20803 Confirmed Eruption 2 North Pagan Historical Observations 2011/4/23 2011/9/1
284170 Pagan 20804 Confirmed Eruption 2 North Pagan Historical Observations 2012/10/30 2012/12/11
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Emission ID SO2 Kilotons Start Date End Date
172 320 1981/05/15 1981/05/15


Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
Location: Old Crater, Pagan (View Details at MaGa DB)
Description: unknown
Hazard Description: unknown
Type: fumarole
Region: Northern Islands, CNMI
Country: Northern Mariana Islands
Volcanic Complex: Pagan
Gas Concentration Data:
Measurement Name Detail Specie Concentration Unit of Measure
Mar-3 Detail H2O 964.18 micromol/mol
Mar-3 Detail CO2 942.84 micromol/mol
Mar-3 Detail S (total) 8.11 micromol/mol
Mar-3 Detail H2S 8.11 micromol/mol
Mar-3 Detail HCl 2.218 micromol/mol
Mar-3 Detail HF 0.005 micromol/mol
Mar-3 Detail NH3 0.031 micromol/mol
Mar-3 Detail Ar 0.398 micromol/mol
Mar-3 Detail N2 35.362 micromol/mol
Mar-3 Detail He 0.00466 micromol/mol
Mar-3 Detail H2 4.109 micromol/mol
Mar-3 Detail O2 6.873 micromol/mol
Mar-3 Detail CH4 0.049 micromol/mol
Mar-3 Detail CO 0 micromol/mol
Mar-9 Detail H2O 949.37 micromol/mol
Mar-9 Detail CO2 972.56 micromol/mol
Mar-9 Detail S (total) 9.07 micromol/mol
Mar-9 Detail H2S 9.07 micromol/mol
Mar-9 Detail HCl 2.527 micromol/mol
Mar-9 Detail HF 0.005 micromol/mol
Mar-9 Detail NH3 0.016 micromol/mol
Mar-9 Detail Ar 0.013 micromol/mol
Mar-9 Detail N2 9.73 micromol/mol
Mar-9 Detail He 0.00388 micromol/mol
Mar-9 Detail H2 4.918 micromol/mol
Mar-9 Detail O2 1.105 micromol/mol
Mar-9 Detail CH4 0.056 micromol/mol
Mar-9 Detail CO 0 micromol/mol
Gas Isotope Data:
Measurement Name Detail Isotope Abundance Unit of Measure
Mar-3 Detail d15N 0.7 permill_vs_smow
Mar-9 Detail d15N 1.6 permill_vs_smow
Gas Temperature Data:
Measurement Name Detail Temperature Unit of Measure
Mar-3 Detail 96.1 °C
Mar-9 Detail 96.1 °C