Southwest Alaska · 58.69°N
Earthquakes near King Salmon
Reading the latest USGS reports for the ground near King Salmon…
Live sections load from the USGS feed. If the feed does not answer, this page says so — it never fills the gap with old numbers.
Most felt near King Salmon — last 7 days, within 250 km
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Recent near King Salmon — last 7 days, M1.0 and larger within 250 km, newest first
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Every event links to its USGS event page, the authority for that earthquake. Distances are measured from King Salmon, not copied from the feed's place names.
The biggest on record near King Salmon — USGS catalog, as recorded
- M7.1Major4 km ENE of Karluk, Alaska
112 mifrom town - M7.0MajorEvent 36 Novarupta-Mount Katmai area, Alaska Peninsula
66 mifrom town - M6.8StrongEvent 37 Novarupta-Mount Katmai area, Alaska Peninsula
66 mifrom town - M6.8StrongEvent 48 Novarupta-Mount Katmai area, Alaska Peninsula
60 mifrom town - M6.6StrongEvent 39 Novarupta-Mount Katmai area, Alaska Peninsula
66 mifrom town
The five largest earthquakes recorded within 200 km of King Salmon since 1900, from USGS catalog pulls made November 8, 2026. Pre-instrumental magnitudes are estimates, and catalog completeness varies by era — the fine print is on the about page.
How often does the ground move here?
60 earthquakes of M4.0 or larger were recorded within 200 km in the last 10 years — a busy rate by Alaska standards. Since 1900 the catalog holds 414 M4-or-larger events within the same radius.
King Salmon's recorded top five are all M6.6 or larger, and they tell a volcanic story alongside the tectonic one: four of the five are the great June 1912 Novarupta–Katmai eruption-sequence earthquakes, with a 1954 M7.1 near Karluk on the megathrust side of the ledger.
Southwest Alaska — why it shakes
From Kodiak Island west, the Aleutian megathrust takes over. The Pacific Plate dives beneath the island arc here at several centimeters a year, and the locked segments let go in some of the planet's largest earthquakes — 1946 (Unimak, M8.6), 1957 (Andreanof Islands, M8.6), and 2021 (Chignik, M8.2) all ruptured this stretch. Between the great ones, the arc crackles almost daily with small and moderate events.
New to the numbers? What magnitude means explains the scale in plain words — including why a whole step is about 32 times the energy, and why what people feel is not the same as damage.
King Salmon on the sister sites
Daylight in King Salmon — sunrise, sunset, and day length.
Aurora over King Salmon — tonight's northern lights outlook.
King Salmon Airport — the nearest tide station in the fleet's inventory, 2 km from King Salmon.