Alaska Volcano Observatory - Semisopochnoi

Maps

Location of Semisopochnoi volcano and other Aleutian volcanoes with respect to nearby cities and towns. (Click to view full-size image.)

Links

How to collect an ash sample for AVO

Please report ashfall to us by email or phone (786-7497). We'd like to know your location, time, if the fall is light or heavy, and the current weather. It would help us if you collect a sample for us. Here are instructions.

Before an eruption
Read the USGS Ashfall Preparedness "Before an eruption" website

Useful Links
NOAA (NWS) Ash Trajectory Forecast
USGS Ashfall Preparedness website
FEMA Fact Sheet: Volcanoes
FEMA Volcanoes: Are you ready?
Alaska Division of Homeland Security and Emergency Management
West Coast & Alaska Tsunami Warning Center
Send us an email

Semisopochnoi Activity