Summary
Color Code Definitions Activity Notifications
Webcams 
Akutan AKSD Augustine - Homer Augustine - island Augustine - Lagoon Augustine - low light Cleveland CLCO Gareloi Great Sitkin Great Sitkin -GSIG Iliamna Iliamna IVE Kanaga Kanaga - KIMD Katmai-KABR Makushin Okmok OKCF Okmok OKIF Pavlof - BLHA Pavlof - DOL Redoubt - CI Redoubt - DFR Redoubt - Hut Semi CEPE Cam Semi CETU Cam Shishaldin Shishaldin-BPRK Shishaldin-WTUG SpurrCKT Tanaga Wrangell
Webicorders 
RSAM 
Great Sitkin
Cleveland Pavlof Semisopochnoi
Volcano List
About Alaska's Volcanoes Hazards from Alaska's Volcanoes Map & Alphabetical List Interactive Map
Eruption Search Volcano Search
|
Text Description: Unit T2; Layer D; 48 cm thick; non-graded, slightly stratified, poorly sorted, lithic rich, tan, top 8 cm is black in color, lapilli layer at 6 cm from top, top 2 cm is fine ash, abundant red scoria. References:  The 1931 eruption of Aniakchak volcano, Alaska Variations in eruption style during the 1931 A.D. eruption of Aniakchak volcano, Alaska |
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G19AC00060 and G19AC00171.
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.
Operations
Response
Staff
Fields of Study
Glossary
Recent Images
Browse Images
