Posted by: Matthew Haney (mhaney@usgs.gov), Fri Dec 5, 2025 19:05 (1905 UTC)
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"Significant" located earthquakes for December 4, 2025 (picking by Scott Stihler):

Iliamna: 11; Redoubt: 4; Spurr: 4; Katmai: 2; Mageik: 2; Martin: 2; Snowy: 2; Cleveland: 1; Takawangha: 1

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Iliamna (11 EQs):
1 low frequency EQ ~1 km ESE of the summit
ML -0.1; Z = 0.8 km

1 EQ ~4 km ENE of the summit
ML -0.4; Z = 1.4 km

1 EQ ~2 km ENE of the summit
ML -0.5; Z = 0.8 km

1 low frequency EQ ~5 km NE of the summit
ML -0.5; Z = 4.2 km

1 EQ ~5 km ENE of the summit
ML -0.6; Z = 1.1 km

1 EQ ~4 km SSE of the summit
ML -0.7; Z = 0.4 km

1 low frequency EQ ~2 km SSE of the summit
ML -0.9; Z = 1.1 km

1 EQ ~3 km SSE of the summit
ML -0.9; Z = -1.8 km

1 EQ ~4 km SSE of the summit
ML -1.0; Z = 1.4 km

1 EQ ~3 km NNE of the summit
ML -1.0; Z = 1.2 km

1 EQ ~3 km ESE of the summit
ML -1.1; Z = 1.7 km


Redoubt (4 EQs):
1 EQ ~4 km ENE of the summit
ML -0.5; Z = 6.5 km

1 EQ ~4 km ENE of the summit
ML -0.8; Z = 6.8 km

1 EQ ~2 km WNW of the summit
ML -0.9; Z = 2.2 km

1 low frequency EQ ~1 km E of the summit
ML -1.1; Z = 0.1 km


Spurr (4 EQs):
1 EQ ~7 km WSW of the summit
ML 0.4; Z = 4.7 km

1 EQ ~3 km WNW of the summit
ML -0.0; Z = 0.6 km

1 EQ ~3 km WNW of the summit
ML -0.1; Z = 1.3 km

1 EQ ~5 km W of the summit
ML -0.8; Z = -0.5 km


Katmai (2 EQs):
1 EQ ~2 km NW of the summit
ML 0.1; Z = 2.9 km

1 EQ ~2 km NW of the summit
ML -0.3; Z = 2.8 km


Mageik (2 EQs):
1 EQ ~0 km W of the summit
ML -0.6; Z = 2.1 km

1 EQ ~1 km WNW of the summit
ML -0.8; Z = 1.4 km


Martin (2 EQs):
1 EQ ~2 km WSW of the summit
ML -0.5; Z = 1.5 km

1 EQ ~1 km WNW of the summit
ML -0.5; Z = 1.5 km


Snowy (2 EQs):
1 EQ ~6 km NW of the summit
ML -0.1; Z = 5.1 km

1 EQ ~5 km WNW of the summit
ML -0.2; Z = 4.1 km


Cleveland:
1 EQ ~3 km E of the summit
ML 1.8; Z = 5.1 km


Takawangha:
1 EQ ~14 km ENE of the summit
ML 1.9; Z = 5.2 km

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