QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

98 km S of Lowell Point, Alaska

· 34 km deep · released about 950 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
Magnitude
M 3.0 (ml)
Depth
34 km below the surface
Felt
2 reports · strongest reported intensity III
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1583 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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.

Where

Epicentre 59.1905, -149.2886. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 2.2 61 km SSE of Lowell Point, Alaska
  2. 2.2 143 km S of Lowell Point, Alaska
  3. 2.4 99 km S of Lowell Point, Alaska
  4. 1.9 66 km SSE of Lowell Point, Alaska
  5. 2.4 124 km S of Lowell Point, Alaska
  6. 1.9 112 km SE of Halibut Cove, Alaska
  7. 2.2 70 km SSW of Lowell Point, Alaska
  8. 1.6 93 km ESE of Halibut Cove, Alaska
  9. 2.2 111 km SE of Halibut Cove, Alaska
  10. 1.9 62 km SSE of Lowell Point, Alaska
  11. 2.0 118 km SE of Halibut Cove, Alaska
  12. 2.0 130 km SSE of Lowell Point, Alaska
  13. 1.8 62 km S of Lowell Point, Alaska
  14. 1.9 Kenai Peninsula, Alaska
  15. 1.8 84 km SSE of Lowell Point, 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.