Posted by: cheryl searcy (csearcy@usgs.gov), Wed Feb 4, 2026 21:14 (2114 UTC)
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"Significant" located earthquakes for February 1, 2026: (picking by Cheryl Searcy)
Iliamna: 12; Makushin: 4; Katmai: 3; Ugashik-Peulik: 3; Edgecumbe: 2; Novarupta: 2; Redoubt: 2; Spurr: 2; Griggs: 1; Snowy: 1
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Iliamna (12 EQs):
1 moderately deep low frequency EQ ~20 km N of the summit
ML 0.7; Z = 11.7 km
1 moderately deep low frequency EQ ~11 km SW of the summit
ML 0.3; Z = 10.4 km
1 EQ ~1 km NNW of the summit
ML -0.3; Z = -2.4 km
1 EQ ~0 km SSE of the summit
ML -0.3; Z = -2.3 km
1 low frequency EQ ~3 km SSE of the summit
ML -0.5; Z = 0.8 km
1 low frequency EQ ~7 km W of the summit
ML -0.6; Z = 7.7 km
1 low frequency EQ ~5 km W of the summit
ML -0.7; Z = 3.0 km
1 EQ ~5 km NE of the summit
ML -0.8; Z = -0.7 km
1 low frequency EQ ~2 km SE of the summit
ML -0.8; Z = 4.3 km
1 low frequency EQ ~2 km NNE of the summit
ML -0.9; Z = 0.4 km
1 EQ ~2 km ESE of the summit
ML -0.9; Z = 1.2 km
1 low frequency EQ ~3 km SSW of the summit
ML -1.3; Z = -0.4 km
Makushin (4 EQs):
1 EQ ~25 km ESE of the summit
ML 1.3; Z = 9.5 km
1 EQ ~18 km SE of the summit
ML 0.9; Z = 5.0 km
1 EQ ~20 km E of the summit
ML 0.8; Z = 7.3 km
1 EQ ~16 km SE of the summit
ML 0.2; Z = 5.8 km
Katmai (3 EQs):
1 EQ ~3 km SW of the summit
ML -0.3; Z = 3.7 km
1 EQ ~0 km SSE of the summit
ML -0.5; Z = 3.7 km
1 EQ ~3 km NW of the summit
ML -0.6; Z = 3.1 km
Ugashik-Peulik (3 EQs):
1 EQ ~27 km S of the summit
ML 1.5; Z = 7.2 km
1 EQ ~27 km ESE of the summit
ML 0.9; Z = 6.8 km
1 EQ ~29 km S of the summit
ML 0.7; Z = 3.1 km
Edgecumbe (2 EQs):
1 EQ ~8 km E of the summit
ML 1.3; Z = 5.4 km
1 EQ ~8 km E of the summit
ML 1.1; Z = 5.1 km
Novarupta (2 EQs):
1 EQ ~4 km SSW of the 1912 dome
ML -0.6; Z = 3.9 km
1 EQ ~2 km SSW of the 1912 dome
ML -0.7; Z = 2.4 km
Redoubt (2 EQs):
1 low frequency EQ ~13 km NE of the summit
ML 0.0; Z = 6.5 km
1 low frequency EQ ~11 km ESE of the summit
ML -0.3; Z = 5.8 km
Spurr (2 EQs):
1 low frequency EQ ~2 km SSE of the summit
ML -0.5; Z = 2.9 km
1 EQ ~2 km N of the summit
ML -0.7; Z = 0.3 km
Griggs:
1 EQ ~5 km NNE of the summit
ML -0.5; Z = 6.5 km
Snowy:
1 EQ ~10 km NW of the summit
ML -0.0; Z = 4.2 km
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