QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Girdwood, AK

No earthquake was likely felt in Girdwood in the 24 hours to 5:02 am AKST (14:02 UTC). The last one was M 1.8, 8 km (5 mi) SE, at 10:01 am AKDT on 19 October 2026, estimated intensity II (weak) in town. Every earthquake near Girdwood

This page: a magnitude 2.4 earthquake was recorded 50 km (31 mi) east of Girdwood, AK, at 3:44 pm AKST on 24 November 2022 (00:44 UTC), 27 km deep.

USGS: 33 km NE of Whittier, Alaska

93 km (58 mi) ESE of Anchorage, AK

3:44 pm AKST, Nov 24, 2022 · · 27 km deep · released about 120 lb of TNT

Every earthquake near Girdwood Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Anchorage Municipality 60 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
3:44 pm AKST on 24 November 2022 ()
Where
50 km (31 mi) east of Girdwood, AK · earthquakes near Girdwood
Magnitude
M 2.4 (ml)
Depth
27 km below the surface
Felt
no reports yet
Nearest
Anchorage Municipality, 60 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1383 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. In Girdwood, 50 km away, the estimate is intensity II (weak). 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 16 earthquakes of M5 or more within 50 km; the five largest:

  1. 9.2 The 1964 Prince William Sound, Alaska Earthquake · 50 km E of this epicentre
  2. 6.6 57 km ENE of Whittier, Alaska · 26 km E of this epicentre
  3. 6.4 22 km ENE of Whittier, Alaska · 14 km SSW of this epicentre
  4. 6.4 46 km WNW of Tatitlek, Alaska · 40 km E of this epicentre
  5. 6.3 27 km ENE of Whittier, Alaska · 11 km S 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 60.9828, -148.2457. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Anchorage Municipality, AK 60 km (37 mi) WNW earthquakes near Anchorage Municipality
Chugach Census Area, AK 124 km (77 mi) ESE earthquakes near Chugach Census Area

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

Aftershocks so far

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

  1. 1.7 63 km S of Glacier View, Alaska
  2. 1.5 34 km ENE of Whittier, Alaska
  3. 1.6 60 km S of Glacier View, Alaska
  4. 1.5 42 km NE of Whittier, Alaska
  5. 2.2 41 km SE of Knik River, Alaska
  6. 1.6 37 km NNE of Whittier, Alaska
  7. 1.8 6 km SW of Whittier, Alaska
  8. 1.6 51 km ESE of Whittier, Alaska
  9. 2.7 41 km NNE of Whittier, Alaska
  10. 1.6 57 km S of Glacier View, Alaska
  11. 1.6 46 km ENE of Whittier, Alaska
  12. 1.5 41 km ESE of Knik River, Alaska
  13. 1.6 61 km S of Glacier View, Alaska
  14. 2.0 51 km ESE of Whittier, Alaska
  15. 1.8 47 km E of Whittier, 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.