QuakeIndex

Earthquake · reviewed by a seismologist

M 3.5ml

55 km WSW of Captain Cook, Hawaii

· 40 km deep · released about 2.8 tons of TNT

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10 km30 km60 km120 km N Hawaii County 100 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 3.5 (ml)
Depth
40 km below the surface
Felt
9 reports · strongest reported intensity III
Measured shaking
intensity II (ShakeMap)
Nearest
Hawaii County, 100 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1584 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 9 people have reported feeling it to USGS.

How big was it?

This earthquake released about 2.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 61,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 2,700× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,900× the energy of this one
  4. This earthquake M 3.5 about 2.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 5.8× more

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 19.2215, -156.3652. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hawaii County, HI 100 km (62 mi) WSW of here earthquakes near Hawaii County

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

Aftershocks so far

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

  1. 2.0 Island of Hawaii, Hawaii
  2. 3.6 16 km WNW of Hawaiian Ocean View, Hawaii
  3. 2.5 11 km W of Captain Cook, Hawaii
  4. 2.5 11 km SW of Captain Cook, Hawaii
  5. 3.3 Hawaii region, Hawaii
  6. 2.4 59 km WSW of Captain Cook, Hawaii
  7. 2.3 49 km W of Kailua-Kona, Hawaii
  8. 2.7 26 km WSW of Kailua-Kona, Hawaii
  9. 3.8 46 km W of Hawaiian Ocean View, Hawaii
  10. 1.9 18 km WSW of Kailua-Kona, Hawaii
  11. 2.5 20 km WSW of Kailua-Kona, Hawaii
  12. 2.6 Hawaii region, Hawaii
  13. 3.3 90 km W of Hawaiian Ocean View, Hawaii
  14. 2.1 8 km WSW of Captain Cook, Hawaii
  15. 2.3 20 km WSW of Kailua-Kona, 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.

On USGS

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