M 7.2 earthquake – 2023 Sand Point, Alaska Earthquake
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Local time: Jul 15, 2023 · 22:48 (UTC-8)
MajorShallow · 25 kmPAGER greenTsunami information issued
Reviewed by a seismologist
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- Magnitude
- 7.2moment magnitude (mww)
- Depth
- 25 kmShallow earthquake
- Epicenter
- 54.393, -160.762994 km from Anchorage
- Energy released
- 951 kilotons of TNTabout 63 × Hiroshima
- Felt reports
- 165"Did You Feel It?" responses
- Shaking intensity
- 7.1max. instrumental (MMI)
- Aftershocks
- 173M2.5+ within 96 km, up to 60 days
- Significance
- 916USGS score, 0–1,000+
Not rare around here
An earthquake at least as strong struck within 300 km on Jul 29, 2021.
How strong was it?
Major earthquake. It released 951 kilotons of TNT, 1,995 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
173 earthquakes of M2.5+ within 96 km in the 60 days after.
- 5.8 81 km SSW of Sand Point, Alaska Jul 16, 2023
- 3.4 Alaska Peninsula Jul 16, 2023
- 3.8 98 km SSW of Sand Point, Alaska Jul 16, 2023
- 4.5 114 km S of Sand Point, Alaska Jul 16, 2023
- 2.6 73 km SSW of Sand Point, Alaska Jul 16, 2023
- 3.0 108 km S of Sand Point, Alaska Jul 16, 2023
- 3.0 117 km S of Sand Point, Alaska Jul 16, 2023
- 2.5 123 km S of Sand Point, Alaska Jul 16, 2023
- 2.5 79 km S of Sand Point, Alaska Jul 16, 2023
- 3.4 101 km S of Sand Point, Alaska Jul 16, 2023
The strongest earthquakes within 300 km
Since 1900.
- 8.6 The 1946 Unimak Island, Alaska Earthquake Apr 1, 1946
- 8.2 1938 Semidi Islands, Alaska Earthquake Nov 10, 1938
- 8.2 2021 Chignik, Alaska Earthquake Jul 29, 2021
- 7.8 2020 Perryville, Alaska Earthquake Jul 22, 2020
- 7.6 2020 Sand Point, Alaska Earthquake Oct 19, 2020
- 7.4 54 km SE of Sand Point, Alaska May 31, 1917
- 7.3 2025 Sand Point, Alaska Earthquake Jul 16, 2025
- 7.1 90 km SE of King Cove, Alaska May 14, 1948
In the week before
Earthquakes within 96 km in the 7 days before this one: possible foreshocks.
- 2.7 83 km SE of King Cove, Alaska Jul 10, 2023
- 2.9 109 km SSE of Sand Point, Alaska Jul 10, 2023
- 3.3 81 km SE of Sand Point, Alaska Jul 11, 2023
- 3.0 63 km SW of Sand Point, Alaska Jul 13, 2023
- 2.9 south of Alaska Jul 15, 2023
- 3.1 132 km SSE of Sand Point, Alaska Jul 15, 2023
- 2.6 69 km SE of King Cove, Alaska Jul 15, 2023
- 2.7 86 km SE of Sand Point, Alaska Jul 15, 2023
- 2.8 106 km SSE of King Cove, Alaska Jul 15, 2023