Alaska Volcano Observatory

Webcams

Ashcam GUI

Explore Data

References

Webicorder

Hazard Alert System

Eruptions

Locations

Glossary

About AVO

Staff

Study Areas

Alert Levels

FAQ

Sample: Dacite

Sample ID:

Dacite ^[1]

Station ID:

AT Num:

Volcano:

Atka volcanic complex

Possible source:

Eruption:

Collector:

Unknown, Unknown

Date sampled:

Sample type 1:

Color:

Final unit:

Text Description:

Sample Location:

The National Map (Topo) The National Map (Imagery) The National Map (Topo + Imagery) The National Map (Shaded Relief)

Elevated Volcanoes Instrumented Volcanoes Uninstrumented Volcanoes Communities Webcams Instruments Earthquakes Geologic Sites

Legend

✕

	Red (Warning)
	Orange (Watch)
	Yellow (Advisory)
	Green (Normal)
	Uninstrumented

300 km

200 mi

Leaflet | U.S. Department of the Interior | U.S. Geological Survey | Policies

References Cited

[1] The Aleutians, 1982

Marsh, B. D., 1982, The Aleutians: in Thorpe, R. S., (ed.), Andesites: orogenic andesites and related rocks, Chichester, United Kingdom, John Wiley & Sons, p. 99-114.

USGS Volcano Notification Service
Contact AVO
Privacy
Accessibility
Information Quality
FOIA

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137 and G23AC00070.

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.