QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

142 km ESE of Chignik, Alaska

Yes. A magnitude 2.5 earthquake was recorded 142 km ESE of Chignik, Alaska at 13:46 UTC on 2026-06-14, 7.2 km deep.

· 7.2 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N
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 2.5 (ml)
Depth
7.2 km below the surface
Felt
no reports yet
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 150 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 21 km (13 mi) from the epicentre. 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 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 6.9 on 2021-10-11 — about 4,000,000 times the energy of this one.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.0 113 km ESE of Chignik, Alaska · 42 km WSW of this epicentre
  2. 6.9 143 km ESE of Chignik, Alaska · 24 km SSW of this epicentre
  3. 6.9 171 km SW of Akhiok, Alaska · 38 km SSE of this epicentre
  4. 6.3 112 km E of Chignik, Alaska · 34 km NW of this epicentre
  5. 6.1 132 km E of Chignik, Alaska · 22 km NNW 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 56.0080, -156.1670. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 2.5 112 km E of Chignik, Alaska
  2. 2.5 160 km ESE of Chignik, Alaska
  3. 2.6 129 km E of Chignik, Alaska
  4. 3.2 130 km E of Chignik, Alaska
  5. 2.6 118 km E of Chignik, Alaska
  6. 3.3 129 km E of Chignik, Alaska
  7. 2.8 112 km E of Chignik, Alaska
  8. 2.1 109 km E of Chignik, Alaska
  9. 4.0 119 km E of Chignik, Alaska
  10. 2.6 115 km E of Chignik, Alaska
  11. 2.8 118 km E of Chignik, Alaska
  12. 2.8 128 km E of Chignik, Alaska
  13. 2.2 114 km E of Chignik, Alaska
  14. 1.8 114 km SW of Akhiok, Alaska
  15. 2.1 137 km E of Chignik, 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.