Posted by: Kyungmin Kim (kkim39@alaska.edu), Thu Dec 25, 2025 01:25 (0125 UTC)-- AVO-GI Meeting Notes Dec 22, 2025 Great Sitkin: Orange Shishaldin : Yellow SIC: Matt Haney CS: David Fee (Acting Ronni Grapenthin 12/13 - 22, Jessica Larsen 12/23-27) Duty Scientist: Cheryl Searcy Duty Remote Sensor: Jordan Lubbers Duty Seismologist: Jeremy Pescik Primary alarms: Jeremy Pescik Secondary alarms: Cheryl Searcy BIG PICTURE: Shishaldin: The color code remains at YELLOW. Great Sitkin: The color code remains at ORANGE. SEISMOLOGY: Highlights from Scott: - Edgecumbe 3 events - Wrangell 3 events - Spurr 16 events (2 deep LPs) - Redoubt 3 events - Iliamna 20 events - Four peaked Mountain 4 events - Katmai region 16 events 3 events snowy/stellar 3 events Mount Katmai 6 events Trident/Novarupta (1 deep LP) 3 events Martin/Megeik - Shishaldin 2 events - West dahl 3 events - Makushin 53 events - Okmok 2 events (1 deep LP) - Cleveland 8 events - Great Sitkin 7 events - Gareloi 8 events - Davidof 1 event GEODESY: Ronni Grapenthin: - no notable volcanic deformation detected - There is no data from Aniakchak due to Port Heiden outage, likely still deflating - Snow loading signals were observed on Spurr. - Paper submitted to BV by Simon Plank with Hannah Diettrich, Ronni Grapenthin, and many others as co-author: Growth and erosion of volcanic islands since 1963 analyzed by multi-sensor satellite data and historical records GEOLOGY: Jessica Larsen: - Participated in the AGU last week with lots of great interactions and feedback. GAS: Taryn Lopez: -No SO2 detections for Alaska volcanoes seen in satellite data over the past week. Cleveland SO2 emissions were seen most day on the NOVAC network with emission rate typically Attachments: This message is posted in the AVO Logs at https://www.avo.alaska.edu/admin/logs/posts/show/454491 _______________________________________________ Avo_ops mailing list -- avo_ops@list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave@list.avo.alaska.edu