Spurr volcano eruptions

stratovolcano 3374 m / 11,070 ft
Cook Inlet, SW Alaska, 61.3°N / -152.25°W
Eruption list: 1992 (Crater Peak), 1965 (?, Spurr), 1953 (Crater Peak)
tephrochronology and radiocarbon dated: 1650 ± 50 years, 3250 BC ?, 4050 BC ?, 5110 BC ± 100 years, 6050 BC


1992 eruption

The subplinian eruption column of Mt Spurr volcano during the 18 Aug 1992 eruption (photo: Game McGimsey, AVO / USGS)
The subplinian eruption column of Mt Spurr volcano during the 18 Aug 1992 eruption (photo: Game McGimsey, AVO / USGS)
A large, subplinian eruption occurred in 1992 at Mt Spurr volcano. There were 3 main explosions, on 27 June, 18 August and 16-17 September. The eruption produced ash columns up to 13.5 km high and ashfall in several hundred km distance.
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1953 eruption

A VEI 4 explosive eruption occurred at Crater Peak from 9-16 July 1953. It produced major ash fall (up to 6 mm in Anchorage) and lahars on the flanks and the base of the volcano.
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