Posted by: cheryl searcy (csearcy@usgs.gov), Thu Jan 22, 2026 18:32 (1832 UTC)
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"Significant" located earthquakes for January 18, 2026: (picking by Cheryl Searcy)
Novarupta: 9; Iliamna: 7; Redoubt: 5; Snowy: 4; Katmai: 2; Makushin: 2; Augustine: 1; Mageik: 1; Martin: 1; Spurr: 1; Trident: 1
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Novarupta (9 EQs):
1 EQ ~4 km SSW of the 1912 dome
ML 0.3; Z = 4.6 km
1 EQ ~4 km SSW of the 1912 dome
ML 0.3; Z = 5.0 km
1 EQ ~2 km SSE of the 1912 dome
ML 0.1; Z = 4.4 km
1 EQ ~4 km SSW of the 1912 dome
ML 0.1; Z = 4.1 km
1 EQ ~4 km SSW of the 1912 dome
ML 0.0; Z = 4.3 km
1 EQ ~4 km SSW of the 1912 dome
ML 0.0; Z = 3.5 km
1 EQ ~4 km SSW of the 1912 dome
ML -0.1; Z = 4.5 km
1 EQ ~2 km SSE of the 1912 dome
ML -0.1; Z = 3.8 km
1 EQ ~4 km SW of the 1912 dome
ML -0.2; Z = 4.9 km
Iliamna (7 EQs):
1 deep low frequency EQ ~2 km N of the summit
ML -0.1; Z = 20.4 km
1 low frequency EQ ~2 km E of the summit
ML -0.6; Z = -0.4 km
1 low frequency EQ ~2 km S of the summit
ML -0.7; Z = 1.5 km
1 EQ ~3 km S of the summit
ML -0.8; Z = -0.7 km
1 low frequency EQ ~1 km NE of the summit
ML -0.8; Z = -2.0 km
1 low frequency EQ ~3 km NNE of the summit
ML -1.1; Z = 0.9 km
1 EQ ~2 km SE of the summit
ML -1.3; Z = 4.6 km
Redoubt (5 EQs):
1 moderately deep low frequency EQ ~21 km SSE of the summit
ML 0.7; Z = 15.3 km
1 EQ ~7 km ENE of the summit
ML 0.3; Z = 12.2 km
1 EQ ~17 km ENE of the summit
ML -0.0; Z = 12.5 km
1 EQ ~10 km NNE of the summit
ML -0.5; Z = 4.1 km
1 EQ ~18 km NNW of the summit
ML -0.8; Z = 8.6 km
Snowy (4 EQs):
1 EQ ~14 km NW of the summit
ML 1.9; Z = 3.9 km
1 EQ ~15 km NW of the summit
ML 0.9; Z = 4.2 km
1 EQ ~14 km NW of the summit
ML 0.1; Z = 4.7 km
1 EQ ~15 km NW of the summit
ML -0.0; Z = 0.8 km
Katmai (2 EQs):
1 EQ ~5 km ESE of the summit
ML 1.0; Z = 5.2 km
1 EQ ~2 km ENE of the summit
ML 0.4; Z = 6.1 km
Makushin (2 EQs):
1 EQ ~19 km E of the summit
ML 0.6; Z = 7.4 km
1 EQ ~20 km E of the summit
ML 0.1; Z = 7.0 km
Augustine:
1 low frequency EQ ~0 km NNE of the summit
ML 0.6; Z = 0.7 km
Mageik:
1 EQ ~2 km WSW of the summit
ML -0.3; Z = 1.9 km
Martin:
1 EQ ~2 km ESE of the summit
ML 0.1; Z = 1.6 km
Spurr:
1 EQ ~5 km NNW of the summit
ML -0.6; Z = 2.0 km
Trident:
1 EQ ~1 km SW of the summit
ML -0.4; Z = 1.9 km
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