QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

Earthquake near Meadow Lakes, AK

No earthquake was likely felt in Meadow Lakes in the 24 hours to 1:46 am AKST (10:46 UTC). The last one was M 2.8, 23 km (14 mi) WSW, at 6:17 am AKST on 6 November 2026, estimated intensity II (weak) in town; 3 felt reports to USGS. Every earthquake near Meadow Lakes

This page: a magnitude 2.2 earthquake was recorded 5 km (3 mi) north of Meadow Lakes, AK, at 4:44 pm AKST on 6 February 2018 (01:44 UTC), 15 km deep. 1 person has reported feeling it to USGS.

USGS: Southern Alaska

53 km (33 mi) NNE of Anchorage, AK

4:44 pm AKST, Feb 6, 2018 · · 15 km deep · released about 60 lb of TNT

Every earthquake near Meadow Lakes Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Anchorage Municipality 58 kmMatanuska-Susitna Borough 66 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
4:44 pm AKST on 6 February 2018 ()
Where
5 km (3 mi) north of Meadow Lakes, AK · earthquakes near Meadow Lakes
Magnitude
M 2.2 (ml)
Depth
15 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Anchorage Municipality, 58 km SSE
Nearest mapped fault
Castle Mountain fault, under 1 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1190 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 11 km (7 mi) from the epicentre. In Meadow Lakes, 5 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.

Likely felt in: Tanaina 10 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 4.3 on 2017-08-21 — about 1,400 times the energy of this one.

Before 2016, the USGS record lists 17 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.9 23 km NE of Willow, Alaska · 27 km NNW of this epicentre
  2. 5.8 14 km NNE of Fishhook, Alaska · 33 km NE of this epicentre
  3. 5.6 11 km NW of Big Lake, Alaska · 30 km WSW of this epicentre
  4. 5.6 5 km N of Susitna, Alaska · 49 km W of this epicentre
  5. 5.5 2 km ENE of Eagle River, Alaska · 38 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 61.6735, -149.5943. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Anchorage Municipality, AK 58 km (36 mi) SSE earthquakes near Anchorage Municipality
Matanuska-Susitna Borough, AK 66 km (41 mi) N earthquakes near Matanuska-Susitna Borough

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

Aftershocks so far

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

  1. 1.9 3 km SE of Palmer, Alaska
  2. 1.5 9 km NNE of Houston, Alaska
  3. 1.9 3 km NW of Meadow Lakes, Alaska
  4. 2.2 7 km NE of Point MacKenzie, Alaska
  5. 1.5 7 km NW of Point MacKenzie, Alaska
  6. 1.5 10 km NNW of Meadow Lakes, Alaska
  7. 1.9 15 km WNW of Fishhook, Alaska
  8. 1.7 16 km N of Meadow Lakes, Alaska
  9. 1.6 15 km N of Meadow Lakes, Alaska
  10. 1.6 13 km N of Meadow Lakes, Alaska
  11. 1.7 3 km WNW of Knik, Alaska
  12. 2.0 26 km SSE of Susitna North, Alaska
  13. 1.5 6 km NE of Willow, Alaska
  14. 1.9 2 km SW of Point MacKenzie, Alaska
  15. 1.6 7 km SW of Meadow Lakes, 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.