Posted by: Matthew Haney (mhaney(a)usgs.gov), Tue Nov 18, 2025 00:47 (0047 UTC)--
AVO Meeting notes for November 17, 2025
Great Sitkin: Orange
Shishaldin: Yellow
Ahyi: Yellow
SIC: Matt Haney
CS: David Fee
Duty Scientist: Hannah Dietterich
Duty Remote Sensor: Hannah Dietterich
Duty Seismologist: Jenny Nakai
CNMI Duty seismologist: Jenny Nakai
CNMI Remote Sensor: Hannah Dietterich
Primary alarms: Jenny Nakai
Secondary alarms: Hannah Dietterich
AVO radio: Abbey Nastan
DUTY SCIENTIST REPORT– Hans Schwaiger
+ GREAT SITKIN (Orange/Watch):
• No change. Reston reports on Nov. 13 and 17 each indicate ~5 meters of advancement southwest to southeast from the vent.
• Seismicity has been quiet.
• No activity observed in satellite and web camera views all week.
+ SHISHALDIN (Yellow/Advisory):
• No change. Explosion signals continue in seismic and infrasound. Steaming from the summit throughout the week.
• There were four low-confidence SO2 detections over the past week.
+ CNMI/AHYI (Yellow/Advisory):
• Possible Wake Is. detection on Nov. 13. Underwater plume seen in satellite on Friday.
+ OTHER ACTIVITY OF NOTE:
• Strong LP at Korovin on Sunday triggered RSAM alarm; no infrasound detected.
+ FIELD WORK:
• None currently planned
NET OPS/FIELDWORK: Max Enders
+ NETWORKS:
• Color Code:
o Great Sitkin – All stations working
o Shishaldin – All stations working.
o Out –
--Adak – Utility power outage in Adak started at started on ~2025-11-15 11:00:59 UTC. AVO production equipment running on battery backup. DC backup failed at ~2025-11-16 07:00 UTC, and has been restored thanks to assistance from Tom Spitler in Adak. TDX has not updated as of this morning, and equipment is running on battery backup only.
-- Katmai Network – Data from stations KABU, KAB2, KAVE and MGLS that are acquired via the KABU repeater are not coming in very well. Presumably, rime icing on yagi antennas at KABU or KEL. -- Peulik Network – Icing at PLWL, PLK3 and PLBL last week caused intermittent data gaps for stations PLK5, PLK3 and R17L.
-- Cleveland Network - Short duration receive facility outages last week were caused by ongoing utility maintenance. Matt Scott with Optimera says that this work is now completed and there shouldn't be any more outages related to this work after today.
• Single Station Issues:
o Iliamna – ILLG out due to telemetry issue, likely a broken radio antenna.
o Shishaldin – SSBA/AV38 and ISNN/AV38 low power, GNSS powered off at both stations to conserve power for seismic data.
o Westdahl – WECS seismic offline to conserve power for GNSS and radios.
o Akutan -LVA out due to low voltage.
o Okmok – OKAK and OKWE no telemetry.
o Bogoslof – BOGO completely out last week.
o Korovin – All stations online, but KOSE and KONE with real time seismic gaps.
o Adak – Infrasound element 6 is not working.
• Overall - twice-daily kicks continue to affect all channels acquired directly to Grace Hall. It appears GNSS data at Edgecumbe has been out since 11/14.
OPEN ANNOUNCEMENTS
+ ADGGS – Scott Crass
• Scott will be working on the next co-op proposal this week and may be reaching out to folks for information.
• Abbey is working on database documentation.
• Dain Harmon is working on the multimedia database. He will be holding a meeting on Tuesday at 3:00 pm.
• Ian is around all week, out next week.
+ UAF – David Fee
• David will be giving the OLÉ! this week. Ronni gave it last week.
• Logan Scamfer’s defense is at 9am on Thursday, Zoom link copied to Mattermost Town Square.
• Gas meeting rescheduled to Tuesday next week (November 25) at 1 PM Alaska/2 PM pacific
+ AVO South – Matt Haney
• Matt will be out of state on leave Nov. 22-30 and Chris Waythomas will be the Acting SIC.
• There’s a monthly Spurr OVERT meeting scheduled for this week but it will be cancelled and a smaller subgroup will meet briefly to discuss the after action report.
+ USGS – Matt Haney
• Annual forms are due by this Friday, Nov. 21.
• There was a discussion about solutions for USGS email lists being unusable from external emails. Scott will start a new list of USGS folks for avo_ops since gs-g-akanc_avo doesn’t work anymore if the emailer isn’t a usgs email. Another solution is in the works for the kvert email distribution.
• Paul Friberg (ISTI) will be at AVO Tues-Fri this week.
• There was a recent email from Seth Moran on the USGS Mentoring program.
• Brandon Schmandt (Rice) gives the VSC seminar this week at 10:30am Thursday
Attachments:
This message is posted in the AVO Logs at https://www.avo.alaska.edu/admin/logs/posts/show/454222
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