QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

9 km WNW of Waimea, Hawaii

· 32 km deep · released about 79 lb of TNT

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10 km30 km60 km120 km N Hawaii County 58 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 2.3 (md)
Depth
32 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Hawaii County, 58 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 833 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 79 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 190,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 79 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 20.0598, -155.7598. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hawaii County, HI 58 km (36 mi) NNW of here earthquakes near Hawaii County
Maui County, HI 125 km (77 mi) SE of here earthquakes near Maui County

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

Aftershocks so far

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

  1. 2.1 21 km SW of Laupāhoehoe, Hawaii
  2. 1.8 21 km SSE of Waimea, Hawaii
  3. 1.7 22 km SSE of Waimea, Hawaii
  4. 1.8 24 km SSE of Waimea, Hawaii
  5. 2.0 22 km SSE of Waimea, Hawaii
  6. 1.9 28 km SSE of Waimea, Hawaii
  7. 1.8 28 km SSE of Waimea, Hawaii
  8. 2.1 11 km SW of Waikoloa, Hawaii
  9. 1.7 25 km SSW of Pa‘auilo, Hawaii
  10. 2.1 14 km SW of Pa‘auilo, Hawaii
  11. 2.0 7 km SSW of Kukuihaele, Hawaii
  12. 2.1 14 km NNE of Kalaoa, Hawaii
  13. 2.0 15 km SW of Laupāhoehoe, Hawaii
  14. 1.8 6 km ENE of Kukuihaele, Hawaii
  15. 2.7 10 km SW of Honoka‘a, 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 5.3 on 2019-04-14 — it released about 39,000 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.