Garibaldi volcano

stratovolcano 2678 m / 8,786 ft
Kanada, 49.85°N / -123°W
Current status: normal or dormant (1 out of 5)
Mount Garibaldi, rising above scenic Garibaldi Lake to the north, is a largely Pleistocene stratovolcano capped by a lava dome complex. The volcano was partially constructed over the Cordilleran ice sheet and displays many ice-contact features. Its final eruptions during the early Holocene included the emission of lava flows that mantled the west-side landside headwall and a massive lava flow from Opal Cone, a SE flank vent, that traveled 20 km to the south and west. Photo by Lee Siebert, 1983 (Smithsonian Institution)
Mount Garibaldi, rising above scenic Garibaldi Lake to the north, is a largely Pleistocene stratovolcano capped by a lava dome complex. The volcano was partially constructed over the Cordilleran ice sheet and displays many ice-contact features. Its final eruptions during the early Holocene included the emission of lava flows that mantled the west-side landside headwall and a massive lava flow from Opal Cone, a SE flank vent, that traveled 20 km to the south and west. Photo by Lee Siebert, 1983 (Smithsonian Institution)

Mt Garibaldi volcano at the head of Howe Sound, 66 km north of Vancouver in SW British Columbia is probably Canada's best-known volcano and part of the active Cascades Range. It is a young stratovolcano capped by a complex of lava domes. Its most recent eruptions occurred at the Opal Cone on the SE flank ca. 8000 years ago and produced the Ring Creek lava flow.

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Typical eruption style: explosive
Garibaldi volcano eruptions: 8060 BC ± 500 (radiocarbon dated)

TimeMag. / DepthDistance/Location
Tuesday, October 19, 2021 14:56 GMT (1 earthquake)
Oct 19, 2021 7:56 am (GMT -7) (Oct 19, 2021 14:56 GMT)
2.6

1 km
46 km (29 mi)
British Columbia, Canada

Background

Mount Garibaldi's oldest known products are around half a million years old. Its first period of activity ended about 220,000 years ago and was followed by a period of quiescence. After this interval, a conical plug dome and breccia pile was formed at the south summit, Atwell Peak. Retreat of the ice cap at the end of the ice age left the west flank unsupported, and it collapsed in a series of landslides, exposing the core of the volcano. Lava flows from Dalton Dome north of Atwell Peak flowed down the scarp. Subglacial flank centers such as Eanastick (Enostuck) Meadow, Glacier Pike and Paul Ridge were also formed during the late Pleistocene.
The final activity of Mount Garibaldi formed the Opal Cone on the SE flank and the lengthy Ring Creek lava flow, which filled a glaciated valley on the south flank during the early Holocene.
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Source: GVP volcano information


See also: Sentinel hub | Landsat 8
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