48 km WSW of Ferry, Alaska

Yes. A magnitude 2.3 earthquake was recorded 48 km WSW of Ferry, Alaska at 11:05 UTC on 2026-10-17, 8.4 km deep. The magnitude and location are an automatic first estimate and may change.

2026-10-17 11:05 UTC · 8.4 km deep · released about 85 lb of TNT

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Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.

When: 2026-10-17 11:05 UTC
Magnitude: M 2.3 (ml)
Depth: 8.4 km below the surface
Felt: no reports yet
Nearest: Denali Borough, 24 km S
Status: Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS 29 days ago · we first saw it 29 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
Magna, Utah 2020 M 5.7 130,000× the energy of this one
Around the size people start to feel M 3.0 11× the energy of this one
This earthquake M 2.3 about 85 lb of TNT

Energy from the Gutenberg–Richter relation (log₁₀E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 4.4 on 2023-05-09 — about 1,400 times the energy of this one.

Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:

5.8 52 km WSW of Ferry, Alaska · 6 km SSW of this epicentre Nov 29, 2000
5.2 48 km ENE of Denali National Park, Alaska · 44 km SW of this epicentre Dec 8, 1984
5.0 30 km W of Ferry, Alaska · 22 km NE of this epicentre Nov 1, 1992
5.0 59 km WSW of Ferry, Alaska · 12 km W of this epicentre Dec 6, 2000

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Map loads when it scrolls into view

Epicentre 63.8940, -150.0560. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction from the epicentre
Denali Borough, AK	24 km (15 mi)	S	earthquakes near Denali Borough

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

7 earthquakes have been recorded within 50 km since this one.

1.7 59 km W of Cantwell, Alaska 13:08 UTC
1.5 53 km W of Clear, Alaska 17:43 UTC
1.8 67 km W of Ferry, Alaska 12:47 UTC
2.2 29 km W of Anderson, Alaska 06:37 UTC
1.8 61 km WNW of Cantwell, Alaska 21:57 UTC
2.1 33 km WNW of Cantwell, Alaska 19:43 UTC
2.2 47 km WSW of Ferry, Alaska 11:05 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 02:13 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

What changed	From	To	When
longitude	-150.05	-150.06	11:09 UTC
latitude	63.89	63.89	11:09 UTC
depth	7.3	8.4	11:09 UTC
magnitude	2.2	2.3	11:09 UTC

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.