Posted by: cheryl searcy (csearcy@usgs.gov), Sun Dec 28, 2025 20:17 (2017 UTC)
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"Significant" located earthquakes for December 27, 2025: (picking by Scott Stihler)

Katmai: 8; Spurr: 5; Iliamna: 4; Great Sitkin: 1; Makushin: 1; Snowy: 1; Fourpeaked: 1

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Katmai (8 EQs):
1 EQ ~2 km NW of the summit
ML 0.6; Z = 2.8 km

1 EQ ~1 km SE of the summit
ML 0.5; Z = 4.6 km

1 EQ ~2 km NW of the summit
ML 0.4; Z = 3.3 km

1 EQ ~6 km NNE of the summit
ML 0.0; Z = 4.6 km

1 EQ ~6 km NNE of the summit
ML -0.1; Z = 4.1 km

1 EQ ~5 km NW of the summit
ML -0.1; Z = 2.1 km

1 EQ ~3 km NW of the summit
ML -0.2; Z = 3.0 km

1 EQ ~4 km NNE of the summit
ML -0.2; Z = 4.3 km


Spurr (5 EQs):
1 EQ ~5 km W of the summit
ML 0.1; Z = -3.1 km

1 deep low frequency EQ ~9 km SSE of the summit
ML -0.5; Z = 32.5 km

1 EQ ~5 km W of the summit
ML -0.6; Z = 3.8 km

1 EQ ~12 km SSW of the summit
ML -0.7; Z = 6.6 km

1 low frequency EQ ~1 km WNW of the summit
ML -0.7; Z = 5.4 km


Iliamna (4 EQs):
1 EQ ~3 km SE of the summit
ML -0.6; Z = -0.2 km

1 EQ ~2 km SW of the summit
ML -0.8; Z = 4.6 km

1 EQ ~2 km SSE of the summit
ML -0.9; Z = -0.2 km

1 EQ ~2 km NNE of the summit
ML -1.0; Z = -0.8 km


Great Sitkin:
1 EQ ~4 km WSW of the summit
ML 1.4; Z = 6.3 km


Makushin:
1 EQ ~18 km E of the summit
ML 1.1; Z = 4.2 km


Snowy:
1 EQ ~23 km SSE of the summit
ML 0.4; Z = 5.2 km


Fourpeaked:
1 EQ ~10 km SW of the summit
ML 0.8; Z = 13.2 km

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