QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

11 km S of Honaunau-Napoopoo, Hawaii

· 24 km deep · released about 570 lb of TNT

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10 km30 km60 km120 km N Hawaii County 47 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
Magnitude
M 2.9 (ml)
Depth
24 km below the surface
Felt
51 reports · strongest reported intensity III
Nearest
Hawaii County, 47 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 44 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 51 people have reported feeling it to USGS.

How big was it?

This earthquake released about 570 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 27,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.9 about 570 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 19.3568, -155.8687. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hawaii County, HI 47 km (29 mi) SW of here earthquakes near Hawaii County

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

Aftershocks so far

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

  1. 2.4 23 km E of Honaunau-Napoopoo, Hawaii
  2. 1.9 11 km WNW of Pāhala, Hawaii
  3. 1.9 26 km NNW of Pāhala, Hawaii
  4. 1.6 2 km SSW of Pāhala, Hawaii
  5. 1.7 2 km SW of Pāhala, Hawaii
  6. 1.8 49 km W of Hawaiian Ocean View, Hawaii
  7. 1.6 8 km SSW of Pāhala, Hawaii
  8. 1.9 4 km SSW of Pāhala, Hawaii
  9. 1.8 4 km SSE of Pāhala, Hawaii
  10. 1.7 1 km W of Pāhala, Hawaii
  11. 1.7 16 km WSW of Captain Cook, Hawaii
  12. 2.4 31 km WNW of Hawaiian Ocean View, Hawaii
  13. 2.8 8 km S of Honaunau-Napoopoo, Hawaii
  14. 2.4 12 km S of Honaunau-Napoopoo, Hawaii
  15. 2.0 12 km NNE of Pāhala, Hawaii

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 6.0 on 2026-05-23 — it released about 46,000 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.