QuakeIndex

Earthquake · reviewed by a seismologist

M 4.5ml

8 km ENE of P?pa‘ikou, Hawaii

· 42 km deep · released about 91 tons of TNT

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10 km30 km60 km120 km N Hawaii County 56 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 4.5 (ml)
Depth
42 km below the surface
Felt
415 reports · strongest reported intensity V
Measured shaking
intensity IV (ShakeMap)
Nearest
Hawaii County, 56 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2513 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 415 people have reported feeling it to USGS.

How big was it?

This earthquake released about 91 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 1,900× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 83× the energy of this one
  3. Magna, Utah 2020 M 5.7 59× the energy of this one
  4. This earthquake M 4.5 about 91 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 190× 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 19.8073, -155.0197. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hawaii County, HI 56 km (35 mi) ENE of here earthquakes near Hawaii County

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

Aftershocks so far

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

  1. 2.1 16 km S of Honoka‘a, Hawaii
  2. 1.8 13 km SW of Pa‘auilo, Hawaii
  3. 1.7 9 km SSW of Leilani Estates, Hawaii
  4. 2.8 3 km S of Leilani Estates, Hawaii
  5. 1.7 24 km NE of Honomu, Hawaii
  6. 1.9 8 km SSW of Pa‘auilo, Hawaii
  7. 1.8 1 km NNW of Volcano, Hawaii
  8. 2.1 1 km N of Volcano, Hawaii
  9. 2.7 23 km NW of Volcano, Hawaii
  10. 1.8 14 km SE of Fern Forest, Hawaii
  11. 1.8 10 km SW of Leilani Estates, Hawaii
  12. 2.1 11 km W of Wainaku, Hawaii
  13. 1.8 2 km SSW of Volcano, Hawaii
  14. 1.8 15 km SW of Leilani Estates, Hawaii
  15. 1.9 25 km NW of Volcano, 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.