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Semisopochnoi reported activity

SEMISOPOCHNOI LINKS

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EVENT SPECIFIC INFORMATION

Event Name : Semisopochnoi 2018/09

Start:September 16, 2018 Observed

Eruption Type:Explosive
Other""

Description: AVO raised the Aviation Color Code and Volcano Alert Level at Semisopochnoi to YELLOW/ADVISORY on September 16, 2018, citing an increase in seismicity, beginnnig at 16:31 UTC (08:31 AKDT). On September 17, 2018, strong tremor increased at 20:49 UTC (12:49 AKDT), suggesting ash emissions may be occurring or imminent. AVO raised the Aviation Color Code and Volcano Alert Level to ORANGE/WATCH at 21:33 UTC (13:33 AKDT).

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Page modified: March 30, 2017 14:36
Contact Information: AVO Web Team

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