Unknown Source

No photo available for this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • Unknown
  • Unknown

  • Unknown
     

  • 600000
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Weekly Report: 16 November-22 November 2016 Citation IconCite this Report


GeoNet reported that on 16 November airplane passengers observed pumice floating in an area W of Minerva Reef, about 600 km SE of Fiji and 500 km SW of Tonga, where there are no known active submarine volcanoes. The nearest active submarine volcano is Monowai (400 km SE) which was active during 10-11 November, though it usually does not produce pumice rafts. Floating pumice was visible in satellite images during 15-16 November, extending more than 100 km. Analysts were not yet able to track the pumice to its source in older images. A larger pumice raft in October 2012 originated from Havre Seamount.

Source: GeoNet

Weekly Reports - Index


2016: November


16 November-22 November 2016 Citation IconCite this Report


GeoNet reported that on 16 November airplane passengers observed pumice floating in an area W of Minerva Reef, about 600 km SE of Fiji and 500 km SW of Tonga, where there are no known active submarine volcanoes. The nearest active submarine volcano is Monowai (400 km SE) which was active during 10-11 November, though it usually does not produce pumice rafts. Floating pumice was visible in satellite images during 15-16 November, extending more than 100 km. Analysts were not yet able to track the pumice to its source in older images. A larger pumice raft in October 2012 originated from Havre Seamount.

Source: GeoNet


The Global Volcanism Program has no Bulletin Reports available for Unknown Source.

The Global Volcanism Program has no synonyms or subfeatures listed for Unknown Source.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1808 Dec 4 ± 7 days Unknown Confirmed 6 Historical Observations Tropical latitude (SP, 365 ppb sulfate)
1452 ± 2 years Unknown Confirmed   Ice Core (SP sulfate peak)
1279 ± 10 years Unknown Confirmed   Ice Core (SP, 818 ppb sulfate)
1269 ± 10 years Unknown Confirmed   Ice Core (SP, 242 ppb sulfate)
1259 ± 10 years Unknown Confirmed   Ice Core (GISP2, 349 ppb sulfate; SP, 1220)
1176 ± 16 years Unknown Confirmed   Ice Core (GISP2, 148 ppb sulfate; SP, 293)
1168 (?) Unknown Confirmed   Ice Core (Byrd Station 68)
0639 ± 25 years Unknown Confirmed   Ice Core (GISP2, 149 ppb sulfate)
0505 (?) Unknown Confirmed   Ice Core (Byrd Station 1968)
0256 (?) Unknown Confirmed   Ice Core (Byrd Station 1968)
0054 BCE ± 40 years Unknown Confirmed   Ice Core (GISP2, 291 ppb sulfate)
0171 BCE (?) Unknown Confirmed   Ice Core (Byrd Station 1968)
0180 BCE ± 40 years Unknown Confirmed   Ice Core (GISP2, 93 ppb sulfate)
0208 BCE (?) Unknown Confirmed   Dendrochronology (Belfast tree-ring chronology)
0325 BCE (?) Unknown Confirmed   Ice Core (SP, 270 ppb sulfate)
0345 BCE (?) Unknown Confirmed   Ice Core (Byrd Station 1968)
0433 BCE (?) Unknown Confirmed   Ice Core (Byrd Station 1968)
0585 BCE ± 50 years Unknown Confirmed   Ice Core (GISP2, 132 ppb sulfate)
1084 BCE ± 50 years Unknown Confirmed   Ice Core (GISP2, 129 ppb sulfate)
1150 BCE (?) Unknown Confirmed   Dendrochronology (Belfast tree-ring chronology)
1192 BCE ± 75 years Unknown Confirmed   Ice Core (GISP2, 110 ppb sulfate)
1454 BCE ± 75 years Unknown Confirmed   Ice Core (GISP2, 164 ppb sulfate)
1459 BCE ± 75 years Unknown Confirmed   Ice Core (GISP2, 104 ppb sulfate)
1623 BCE ± 75 years Unknown Confirmed   Ice Core (GISP2, 145 ppb sulfate)
1628 BCE (?) Unknown Confirmed   Dendrochronology (Belfast tree-ring chronology)
1695 BCE ± 75 years Unknown Confirmed   Ice Core (GISP2, 213 ppb sulfate)
2958 BCE ± 100 years Unknown Confirmed   Ice Core (GISP2, 124 ppb sulfate)
3195 BCE (?) Unknown Confirmed   Dendrochronology (Belfast tree-ring chronology)
3201 BCE ± 100 years Unknown Confirmed   Ice Core (GISP2, 175 ppb sulfate)
3518 BCE ± 100 years Unknown Confirmed   Ice Core (GISP2, 174 ppb sulfate)
3541 BCE ± 100 years Unknown Confirmed   Ice Core (GISP2, 97 ppb sulfate)
3905 BCE ± 100 years Unknown Confirmed   Ice Core (GISP2, 134 ppb sulfate)
3977 BCE ± 100 years Unknown Confirmed   Ice Core (GISP2, 137 ppb sulfate)
4010 BCE ± 100 years Unknown Confirmed   Ice Core (GISP2, 133 ppb sulfate)
4037 BCE ± 100 years Unknown Confirmed   Ice Core (GISP2, 148, 313 ppb sulfate)
4375 BCE (?) Unknown Confirmed   Dendrochronology (Belfast tree-ring chronology)
4411 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 183 ppb sulfate)
4447 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 159 ppb sulfate)
4564 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 132 ppb sulfate)
4596 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 257 ppb sulfate)
4689 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 310 ppb sulfate)
4803 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 141 ppb sulfate)
4988 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 93 ppb sulfate)
5278 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 404, 677 ppb sulfate)
5521 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 129 ppb sulfate)
5881 BCE (?) Unknown Confirmed   Ice Core (SP, 280 ppb sulfate)
5995 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 115 ppb sulfate)
6273 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 150 ppb sulfate)
6338 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 222 ppb sulfate)
6360 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 92 ppb sulfate)
6397 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 424, 130 ppb sulfate)
6470 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 154 ppb sulfate)
6476 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 710 ppb sulfate)
6555 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 101 ppb sulfate)
6614 BCE ± 150 years Unknown Confirmed   Ice Core (GISP2, 240 ppb sulfate)
6721 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 572, 396 ppb sulfate)
6766 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 153 ppb sulfate)
6955 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 236 ppb sulfate)
7148 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 116 ppb sulfate)
7210 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 146 ppb sulfate)
7627 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 106 ppb sulfate)
7629 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 114 ppb sulfate)
7683 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 98 ppb sulfate)
7728 BCE (?) Unknown Confirmed   Ice Core (Byrd Station 1968)
7837 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 120 ppb sulfate)
7870 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 111 ppb sulfate)
7943 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 199 ppb sulfate)
7953 BCE (?) Unknown Confirmed   Ice Core (Byrd Station 1968)
7978 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 144 ppb sulfate)
8026 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 97 ppb sulfate)
8031 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 109 ppb sulfate)
8098 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 94 ppb sulfate)
8103 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2,109 ppb sulfate)
8154 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 91 ppb sulfate)
8169 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 142 ppb sulfate)
8230 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 150 ppb sulfate)
8232 BCE ± 200 years Unknown Confirmed   Ice Core (GISP2, 148 ppb sulfate)

Deformation History


Information about Deformation periods will be available soon.

Emission History


There is no Emissions History data is available for Unknown Source.

The Global Volcanism Program has no photographs available for Unknown Source.

Smithsonian Sample Collections Database


There are no samples for Unknown Source in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites