58 km S of Alcan Border, Alaska

Yes. A magnitude 1.6 earthquake was recorded 58 km S of Alcan Border, Alaska at 07:00 UTC on 2025-03-28, 14 km deep.

2025-03-28 07:00 UTC · 14 km deep · released about 7.6 lb of TNT

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: 2025-03-28 07:00 UTC
Magnitude: M 1.6 (ml)
Depth: 14 km below the surface
Felt: no reports yet
Nearest mapped fault: Denali fault, 7 km from its surface trace — near is not the same as on
Status: Reviewed by a seismologist

USGS · last changed by USGS 571 days ago · we first saw it 571 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
Around the size people start to feel M 3.0 130× the energy of this one
This earthquake M 1.6 about 7.6 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

5.0 60 km SW of Alcan Border, Alaska · 30 km WNW of this epicentre Nov 8, 2002

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

Aftershocks so far

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

2.1 68 km S of Alcan Border, Alaska 21:32 UTC
2.3 59 km S of Alcan Border, Alaska 08:36 UTC
2.3 69 km S of Alcan Border, Alaska 03:36 UTC
2.4 65 km SSW of Alcan Border, Alaska 17:53 UTC
1.6 57 km SSW of Alcan Border, Alaska 22:44 UTC
1.8 52 km SSE of Alcan Border, Alaska 09:06 UTC
2.0 49 km SSW of Alcan Border, Alaska 07:02 UTC
1.9 55 km SSW of Alcan Border, Alaska 02:23 UTC
1.7 84 km S of Alcan Border, Alaska 15:27 UTC
1.7 66 km S of Alcan Border, Alaska 13:28 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 16:48 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

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.