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[AVO-OPS] AVO LOG- Chris Waythomas Acting AVO SIC Nov. 22-30
by logs--- via Avo_ops 21 Nov '25

21 Nov '25

Posted by: Matthew Haney (mhaney(a)usgs.gov), Fri Nov 21, 2025 22:22 (2222 UTC)-- I'll be away starting very early in the morning tomorrow (Nov. 22) and won't be back to Anchorage until Nov. 30. Chris Waythomas will be Acting AVO SIC while I'm gone. Thanks Chris! Attachments: This message is posted in the AVO Logs at https://www.avo.alaska.edu/admin/logs/posts/show/454250 _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO LOG- Seismic Summary - 11/20/2025
by logs--- via Avo_ops 21 Nov '25

21 Nov '25

Posted by: Matthew Haney (mhaney(a)usgs.gov), Fri Nov 21, 2025 19:59 (1959 UTC)-- "Significant" located earthquakes for November 20, 2025 (picking by Scott Stihler): Great Sitkin: 2; Shishaldin: 2; Kliuchef: 1; Cleveland: 1; Iliamna: 1; Katmai: 1; Novarupta: 1; Okmok: 1; Snowy: 1; Spurr: 1; Wrangell: 1 ======================== Great Sitkin (2 EQs): 1 low frequency EQ ~4 km WNW of the summit ML 1.6; Z = 8.7 km 1 EQ ~2 km SSW of the summit ML 1.1; Z = 9.7 km Shishaldin (2 EQs): 1 deep low frequency EQ ~7 km ESE of the summit ML 1.4; Z = 24.8 km 1 EQ ~1 km SW of the summit ML 1.1; Z = -0.7 km Kliuchef: 1 EQ ~2 km NNE of the summit ML 0.8; Z = 3.5 km Cleveland: 1 EQ ~19 km ENE of the summit ML 1.5; Z = 9.0 km Iliamna: 1 EQ ~3 km NNE of the summit ML -0.3; Z = 2.0 km Katmai: 1 EQ ~2 km NW of the summit ML 0.9; Z = 3.0 km Novarupta: 1 EQ ~2 km S of the 1912 dome ML 0.6; Z = 3.4 km Okmok: 1 EQ ~5 km NE of the center of caldera ML 0.4; Z = 8.8 km Snowy: 1 EQ ~11 km NNW of the summit ML 0.4; Z = 5.9 km Spurr: 1 EQ ~8 km S of the summit ML 0.1; Z = 5.8 km Wrangell: 1 EQ ~8 km S of the summit ML -0.0; Z = 4.9 km Attachments: This message is posted in the AVO Logs at https://www.avo.alaska.edu/admin/logs/posts/show/454248 _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO RSDB- 21 Nov 2025 satellite report
by Hannah Dietterich via Avo_ops 21 Nov '25

21 Nov '25

Associated Keywords: Cloud cover: cloudy; Associated Images: https://www.avo.alaska.edu/admin/rsdb/files/show/62873 : shishaldin_brpk-20251120T233200Z.jpg Associated Keywords: Volcanic clouds: steam/water; Cloud cover: partly cloudy; To view these and other satellite data, please use http://volcview.wr.usgs.gov/ Duty person can be reached at (907) 786-7481 if you have any questions. Last image viewed: 21 Nov 2025 18:31 UTC _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO RSDB- 20 Nov 2025 satellite report
by Hannah Dietterich via Avo_ops 20 Nov '25

20 Nov '25

Associated Keywords: Cloud cover: cloudy; Associated Keywords: Cloud cover: cloudy; Associated Images: https://www.avo.alaska.edu/admin/rsdb/files/show/62871 : 375mAKCL-MIR-d20251120t1321905815Z-annotated.png Associated Keywords: Elevated surface temperatures: barely elevated; To view these and other satellite data, please use http://volcview.wr.usgs.gov/ Duty person can be reached at (907) 786-7481 if you have any questions. Last image viewed: 20 Nov 2025 19:31 UTC _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO LOG- Seismic Summary - 11/19/2025
by logs--- via Avo_ops 20 Nov '25

20 Nov '25

Posted by: Matthew Haney (mhaney(a)usgs.gov), Thu Nov 20, 2025 18:23 (1823 UTC)-- "Significant" located earthquakes for November 19, 2025 (picking by Scott Stihler): Iliamna: 4; Shishaldin: 3; Spurr: 3; Cleveland: 2; Katmai: 2; Martin: 2; Steller: 2; Mageik: 1; Trident: 1 ======================== Iliamna (4 EQs): 1 EQ ~1 km SW of the summit ML -0.5; Z = 4.7 km 1 EQ ~3 km NE of the summit ML -0.6; Z = 1.5 km 1 low frequency EQ ~2 km N of the summit ML -0.6; Z = 0.2 km 1 EQ ~1 km NNE of the summit ML -0.8; Z = -2.2 km Shishaldin (3 EQs): 1 EQ ~0 km SSW of the summit ML 0.9; Z = -1.0 km 1 low frequency EQ ~2 km WNW of the summit ML 0.9; Z = 0.5 km 1 EQ ~1 km SW of the summit ML 0.5; Z = -2.9 km Spurr (3 EQs): 1 EQ ~14 km S of the summit ML 0.2; Z = 6.3 km 1 EQ ~13 km S of the summit ML -0.0; Z = 6.6 km 1 EQ ~8 km WSW of the summit ML -0.1; Z = 3.3 km Cleveland (2 EQs): 1 EQ ~3 km SE of the summit ML 1.1; Z = 5.9 km 1 EQ ~4 km SE of the summit ML 1.0; Z = 4.2 km Katmai (2 EQs): 1 EQ ~3 km NW of the summit ML -0.4; Z = 3.7 km 1 EQ ~3 km WNW of the summit ML -0.4; Z = 2.6 km Martin (2 EQs): 1 EQ ~1 km NW of the summit ML 0.9; Z = 2.0 km 1 EQ ~0 km NNW of the summit ML -0.7; Z = 1.4 km Steller (2 EQs): 1 EQ ~1 km NNE of the summit ML 1.2; Z = 4.2 km 1 EQ ~6 km SW of the summit ML 0.4; Z = 4.2 km Mageik: 1 EQ ~1 km SSW of the summit ML -0.4; Z = 2.6 km Trident: 1 EQ ~3 km WNW of the summit ML 0.5; Z = 3.5 km Attachments: This message is posted in the AVO Logs at https://www.avo.alaska.edu/admin/logs/posts/show/454238 _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO LOG- Seismic Summary - 11/18/2025
by logs--- via Avo_ops 19 Nov '25

19 Nov '25

Posted by: Matthew Haney (mhaney(a)usgs.gov), Wed Nov 19, 2025 21:55 (2155 UTC)-- "Significant" located earthquakes for November 18, 2025 (picking by Scott Stihler): Iliamna: 7; Augustine: 2; Cleveland: 2; Katmai: 2; Mageik: 2; Okmok: 2; Shishaldin: 2; Veniaminof: 2; Martin: 1; Snowy: 1; Spurr: 1; Trident: 1 ======================== Iliamna (7 EQs): 1 EQ ~3 km E of the summit ML -0.3; Z = 0.8 km 1 EQ ~2 km NNE of the summit ML -0.6; Z = -0.0 km 1 EQ ~2 km S of the summit ML -0.6; Z = 1.2 km 1 EQ ~4 km N of the summit ML -0.7; Z = 3.5 km 1 EQ ~1 km NNE of the summit ML -0.7; Z = -0.9 km 1 EQ ~2 km SW of the summit ML -0.8; Z = -0.2 km 1 EQ ~2 km S of the summit ML -0.8; Z = 1.5 km Augustine (2 EQs): 1 EQ ~1 km E of the summit ML -0.3; Z = 3.4 km 1 EQ ~3 km WSW of the summit ML -0.5; Z = 0.9 km Cleveland (2 EQs): 1 EQ ~5 km ESE of the summit ML 2.1; Z = 3.0 km 1 EQ ~5 km ESE of the summit ML 1.4; Z = 5.5 km Katmai (2 EQs): 1 EQ ~2 km NW of the summit ML 0.0; Z = 3.1 km 1 EQ ~2 km WNW of the summit ML -0.2; Z = 2.6 km Mageik (2 EQs): 1 EQ ~2 km SW of the summit ML -0.3; Z = 1.4 km 1 EQ ~1 km SW of the summit ML -0.4; Z = 1.8 km Okmok (2 EQs): 1 EQ ~10 km S of the center of caldera ML 1.0; Z = 7.5 km 1 EQ ~9 km S of the center of caldera ML 0.6; Z = 7.7 km Shishaldin (2 EQs): 1 low frequency EQ ~2 km SSW of the summit ML 1.3; Z = 4.1 km 1 low frequency EQ ~2 km WSW of the summit ML 0.9; Z = 4.2 km Veniaminof (2 EQs): 1 deep low frequency EQ ~4 km W of the intracaldera cone ML 1.4; Z = 22.4 km 1 low frequency EQ ~9 km NE of the intracaldera cone ML 0.2; Z = 4.5 km Martin: 1 EQ ~0 km NW of the summit ML -0.2; Z = 1.7 km Snowy: 1 EQ ~6 km NE of the summit ML 0.1; Z = 5.5 km Spurr: 1 deep low frequency EQ ~5 km ESE of the summit ML -0.1; Z = 26.6 km Trident: 1 EQ ~1 km W of the summit ML -0.9; Z = 4.1 km Attachments: This message is posted in the AVO Logs at https://www.avo.alaska.edu/admin/logs/posts/show/454235 _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO RSDB- 19 Nov 2025 satellite report
by Hannah Dietterich via Avo_ops 19 Nov '25

19 Nov '25

Associated Keywords: Cloud cover: cloudy; Associated Images: https://www.avo.alaska.edu/admin/rsdb/files/show/62870 : shishaldin_wtug2-20251119T000100Z.jpg Associated Keywords: Volcanic clouds: steam/water; Cloud cover: partly cloudy; To view these and other satellite data, please use http://volcview.wr.usgs.gov/ Duty person can be reached at (907) 786-7481 if you have any questions. Last image viewed: 19 Nov 2025 19:30 UTC _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO LOG- Seismic Summary - 11/16/2025
by logs--- via Avo_ops 18 Nov '25

18 Nov '25

Posted by: Jenny Nakai (jnakai(a)usgs.gov), Tue Nov 18, 2025 20:46 (2046 UTC)-- "Significant" located earthquakes for November 16, 2025 (picking by Jenny Nakai): Iliamna: 12; Spurr: 8; Korovin: 4; Redoubt: 3; Steller: 3; Snowy: 2 ======================== Iliamna (12 EQs): 1 EQ ~13 km N of the summit ML 0.3; Z = 8.7 km 1 EQ ~15 km SSW of the summit ML 0.3; Z = 25.7 km 1 low frequency EQ ~8 km N of the summit ML 0.2; Z = -0.5 km 1 EQ ~2 km NW of the summit ML -0.3; Z = 0.0 km 1 EQ ~4 km NNE of the summit ML -0.4; Z = 0.9 km 1 EQ ~2 km SSE of the summit ML -0.5; Z = 0.0 km 1 EQ ~2 km NNE of the summit ML -0.6; Z = -1.1 km 1 EQ ~2 km NNE of the summit ML -0.7; Z = -0.5 km 1 EQ ~2 km NE of the summit ML -0.8; Z = 1.2 km 1 low frequency EQ ~3 km SE of the summit ML -0.8; Z = -0.2 km 1 EQ ~2 km S of the summit ML -0.8; Z = -2.9 km 1 EQ ~3 km SSW of the summit ML -1.1; Z = -2.0 km Spurr (8 EQs): 1 EQ ~13 km S of the summit ML 0.2; Z = 4.0 km 1 low frequency EQ ~27 km NE of the summit ML 0.1; Z = 2.3 km 1 EQ ~30 km S of the summit ML 0.0; Z = 12.7 km 1 EQ ~6 km SSE of the summit ML -0.2; Z = 22.0 km 1 EQ ~6 km SE of the summit ML -0.2; Z = 22.4 km 1 low frequency EQ ~8 km ENE of the summit ML -0.2; Z = -3.0 km 1 EQ ~3 km WNW of the summit ML -0.5; Z = -0.3 km 1 EQ ~9 km ENE of the summit ML -0.8; Z = 1.2 km Korovin (4 EQs): 1 low frequency EQ ~1 km SSW of the summit ML 1.9; Z = 1.0 km 1 low frequency EQ ~2 km W of the summit ML 1.5; Z = -0.1 km 1 low frequency EQ ~3 km NNW of the summit ML 0.8; Z = 2.6 km 1 low frequency EQ ~2 km SSW of the summit ML 0.6; Z = 4.1 km Redoubt (3 EQs): 1 EQ ~3 km ENE of the summit ML -0.5; Z = 7.6 km 1 low frequency EQ ~2 km ESE of the summit ML -0.6; Z = -0.3 km 1 EQ ~14 km ENE of the summit ML -0.7; Z = 13.5 km Steller (3 EQs): 1 EQ ~16 km N of the summit ML 1.1; Z = 7.6 km 1 EQ ~22 km NNE of the summit ML 0.8; Z = 2.0 km 1 EQ ~3 km WSW of the summit ML 0.4; Z = 5.5 km Snowy (2 EQs): 1 EQ ~3 km NW of the summit ML -0.2; Z = 5.1 km 1 EQ ~6 km NNW of the summit ML -0.4; Z = 6.8 km Attachments: This message is posted in the AVO Logs at https://www.avo.alaska.edu/admin/logs/posts/show/454228 _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO LOG- Seismic Summary - 11/17/2025
by logs--- via Avo_ops 18 Nov '25

18 Nov '25

Posted by: Matthew Haney (mhaney(a)usgs.gov), Tue Nov 18, 2025 19:53 (1953 UTC)-- "Significant" located earthquakes for November 17, 2025 (picking by Scott Stihler): Iliamna: 7; Takawangha: 7; Shishaldin: 3; Spurr: 2; Steller: 2; Katmai: 1; Mageik: 1; Redoubt: 1; Snowy: 1; Trident: 1 ======================== Iliamna (7 EQs): 1 EQ ~0 km SSW of the summit ML -0.1; Z = -0.8 km 1 EQ ~6 km SSE of the summit ML -0.3; Z = 1.5 km 1 EQ ~3 km NE of the summit ML -0.6; Z = 0.5 km 1 EQ ~3 km SE of the summit ML -0.7; Z = 0.4 km 1 low frequency EQ ~1 km ENE of the summit ML -0.8; Z = 4.0 km 1 EQ ~3 km SSE of the summit ML -0.9; Z = -0.3 km 1 EQ ~3 km SE of the summit ML -1.3; Z = 3.5 km Takawangha (7 EQs): 1 EQ ~19 km E of the summit ML 1.6; Z = 5.8 km 1 EQ ~20 km E of the summit ML 1.4; Z = 5.6 km 1 EQ ~20 km E of the summit ML 1.2; Z = 5.6 km 1 EQ ~20 km E of the summit ML 1.0; Z = 5.5 km 1 EQ ~20 km E of the summit ML 0.9; Z = 5.8 km 1 EQ ~19 km E of the summit ML 0.9; Z = 5.7 km 1 EQ ~19 km E of the summit ML 0.8; Z = 7.0 km Shishaldin (3 EQs): 1 low frequency EQ ~10 km SSW of the summit ML 1.6; Z = 5.7 km 1 low frequency EQ ~5 km S of the summit ML 1.2; Z = 8.6 km 1 low frequency EQ ~2 km WSW of the summit ML 1.0; Z = 0.9 km Spurr (2 EQs): 1 EQ ~6 km W of the summit ML -0.2; Z = 3.7 km 1 EQ ~4 km NNW of the summit ML -0.6; Z = 0.7 km Steller (2 EQs): 1 EQ ~6 km W of the summit ML -0.0; Z = 8.7 km 1 EQ ~10 km NW of the summit ML -0.3; Z = 9.8 km Katmai: 1 EQ ~2 km NW of the summit ML 0.1; Z = 3.2 km Mageik: 1 EQ ~0 km W of the summit ML -0.2; Z = 1.8 km Redoubt: 1 EQ ~3 km ENE of the summit ML -0.1; Z = 4.3 km Snowy: 1 EQ ~15 km NNW of the summit ML -0.5; Z = 3.5 km Trident: 1 EQ ~0 km WSW of the summit ML -0.2; Z = 4.9 km Attachments: This message is posted in the AVO Logs at https://www.avo.alaska.edu/admin/logs/posts/show/454227 _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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[AVO-OPS] AVO RSDB- 18 Nov 2025 satellite report
by Hannah Dietterich via Avo_ops 18 Nov '25

18 Nov '25

Associated Images: https://www.avo.alaska.edu/admin/rsdb/files/show/62867 : 375mAKKN-MIR-d20251118t1248261107Z-annotated.png Associated Keywords: Elevated surface temperatures: barely elevated; Cloud cover: cloudy; partly cloudy; Associated Keywords: Cloud cover: cloudy; Associated Images: https://www.avo.alaska.edu/admin/rsdb/files/show/62868 : koro_20240506-20251118T0524_tsx.gif https://www.avo.alaska.edu/admin/rsdb/files/show/62869 : 375mAKKO-MIR-d20251118t1309544770Z-annotated.png Associated Keywords: Elevated surface temperatures: barely elevated; Cloud cover: cloudy; partly cloudy; To view these and other satellite data, please use http://volcview.wr.usgs.gov/ Duty person can be reached at (907) 786-7481 if you have any questions. Last image viewed: 18 Nov 2025 19:01 UTC _______________________________________________ Avo_ops mailing list -- avo_ops(a)list.avo.alaska.edu To unsubscribe send an email to avo_ops-leave(a)list.avo.alaska.edu

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