QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

57 km SE of Pope-Vannoy Landing, Alaska

· 104 km deep · released about 30 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 2.0 (ml)
Depth
104 km below the surface
Felt
no reports yet
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1718 days ago

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

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 59.1957, -153.7638. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 1.5 44 km SE of Pedro Bay, Alaska
  2. 1.6 50 km SSE of Pedro Bay, Alaska
  3. 1.7 91 km WSW of Nanwalek, Alaska
  4. 1.6 Southern Alaska
  5. 1.8 90 km NNW of Aleneva, Alaska
  6. 1.5 93 km NNW of Aleneva, Alaska
  7. 1.8 62 km ESE of Pope-Vannoy Landing, Alaska
  8. 1.7 79 km WSW of Nanwalek, Alaska
  9. 2.3 28 km SSE of Pedro Bay, Alaska
  10. 1.7 35 km SE of Pedro Bay, Alaska
  11. 1.9 71 km SSE of Kokhanok, Alaska
  12. 2.2 94 km SE of Pope-Vannoy Landing, Alaska
  13. 2.0 41 km ESE of Pedro Bay, Alaska
  14. 1.9 62 km ESE of Pope-Vannoy Landing, Alaska
  15. 1.8 57 km ESE of Pope-Vannoy Landing, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2016-05-30 — it released about 1,400 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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