QuakeIndex

Earthquake · automatic estimate, may change

M 1.5ml

60 km SSE of Denali National Park, Alaska

· 5.0 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Denali Borough 92 km
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
Magnitude
M 1.5 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Denali Borough, 92 km NE
Nearest mapped fault
Denali fault, 5 km from its surface trace — near is not the same as on
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 9 hours ago

A magnitude 1.5 earthquake was recorded 60 km SSE of Denali National Park, Alaska at 18:12 UTC on 2026-10-02. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 5.3 on 2016-05-15 — about 500,000 times the energy of this one.

Before 2016, the USGS record lists 13 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.7 66 km ESE of Denali National Park, Alaska · 36 km ENE of this epicentre
  2. 5.5 53 km ESE of Denali National Park, Alaska · 47 km NNE of this epicentre
  3. 5.5 59 km SE of Denali National Park, Alaska · 15 km NE of this epicentre
  4. 5.4 48 km N of Petersville, Alaska · 32 km ESE of this epicentre
  5. 5.3 71 km SE of Denali National Park, Alaska · 38 km ENE of this epicentre

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

Epicentre 63.0490, -151.2220. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Denali Borough, AK 92 km (57 mi) NE earthquakes near Denali Borough
Matanuska-Susitna Borough, AK 124 km (77 mi) SE earthquakes near Matanuska-Susitna Borough

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 2.2 60 km ESE of Denali National Park, Alaska

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

On USGS

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