The Mount Meager massif produced the largest volcanic eruption in Canada in the last 10,000 years. About 2,400 years ago, an explosive eruption formed a volcanic crater on its northeastern flank and sent avalanches of hot ash, rock fragments and volcanic gases down the northern flank of the volcano. Evidence for more recent volcanic activity has been documented at the volcano, such as hot springs and earthquakes. The Mount Meager massif has also been the source of several large landslides in the past, including a massive debris flow in 2010 that swept down Meager Creek and the Lillooet River. |
Mt Meager Massif (southside) Landslide Fly Over. A massif is a group of volcanic peaks. In this case - see MORE THOROUGH below the video on the north side Plinth Peak with is just above Downton Lake)
https://youtu.be/aHw0OtZX4Cg [10:01 minutes].
The Mount Meager massif is a group of volcanic peaks in the Pacific Ranges of the Coast Mountains in southwestern British Columbia, Canada. Part of the Cascade Volcanic Arc of western North America, it is located 150 km (93 mi) north of Vancouver at the northern end of the Pemberton Valley and reaches a maximum elevation of 2,680 m (8,790 ft). The massif is capped by several eroded volcanic edifices, including lava domes, volcanic plugs and overlapping piles of lava flows; these form at least six major summits including Mount Meager which is the second highest of the massif.
Six main summits constitute the Mount Meager massif. The highest and northernmost summit is Plinth Peak with an elevation of 2,680 m (8,790 ft).[1][25] Mount Meager itself is 2,650 m (8,690 ft) in elevation.[25] Capricorn Mountain west of Mount Meager rises with an elevation of 2,570 m (8,430 ft). Just west of Capricorn Mountain lies Mount Job, 2,493 m (8,179 ft) in elevation.[1][25] Pylon Peak with an elevation of 2,481 m (8,140 ft) is south of Capricorn Mountain and Mount Meager.[25] Devastator Peak, also known as The Devastator, has an elevation of 2,315 m (7,595 ft) and is the lowest and southernmost summit of the massif.[1][25]
The Garibaldi Volcanic Belt (GVB) has a long history of eruptions and poses a threat to the surrounding region. Any volcanic hazard ranging from landslides to eruptions could pose a significant risk to humans and wildlife. Although the massif has not erupted for more than 2,000 years, it could produce a major eruption; if this were to happen, relief efforts would be quickly organized. Teams such as the Interagency Volcanic Event Notification Plan (IVENP) are prepared to notify people threatened by volcanic eruptions in Canada.
The Mount Meager massif produced the largest volcanic eruption in Canada in the last 10,000 years. About 2,400 years ago, an explosive eruption formed a volcanic crater on its northeastern flank and sent avalanches of hot ash, rock fragments and volcanic gases down the northern flank of the volcano. Evidence for more recent volcanic activity has been documented at the volcano, such as hot springs and earthquakes. The Mount Meager massif has also been the source of several large landslides in the past, including a massive debris flow in 2010 that swept down Meager Creek and the Lillooet River.
Taking off from pumice mine about 1 km north of campsite. Fly over of campsite and the ridge we were evac'd from. Fly up the Meager valley to Mt Meager and Capricorn Glacier. You can see the natural lake created by the slide in a few shots. This is what created the Pemberton evacuation warning. Fly back down valley towards Pemberton.
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