QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

28 km WNW of Puako, Hawaii

· 9.8 km deep · released about 88 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hawaii County 81 kmMaui County 101 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 (ml)
Depth
9.8 km below the surface
Felt
no reports yet
Nearest
Hawaii County, 81 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 577 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 88 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 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 20.0910, -156.0737. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hawaii County, HI 81 km (50 mi) NW of here earthquakes near Hawaii County
Maui County, HI 101 km (63 mi) SSE of here earthquakes near Maui County

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

Aftershocks so far

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

  1. 3.1 9 km SSE of Hala‘ula, Hawaii
  2. 2.1 18 km WNW of Kalaoa, Hawaii
  3. 2.8 10 km SSE of Kapaau, Hawaii
  4. 2.7 25 km WSW of Hāwī, Hawaii
  5. 2.3 17 km W of Kalaoa, Hawaii
  6. 2.2 13 km S of Kapaau, Hawaii
  7. 2.4 22 km WSW of Hāwī, Hawaii
  8. 1.9 15 km NNE of Kalaoa, Hawaii
  9. 2.1 8 km SSE of Waikoloa, Hawaii
  10. 2.6 12 km ENE of Hala‘ula, Hawaii
  11. 2.3 8 km SE of Waimea, Hawaii
  12. 2.3 8 km SSW of Puako, Hawaii
  13. 2.1 1 km NNE of Waikoloa, Hawaii
  14. 3.6 25 km WNW of Kalaoa, Hawaii
  15. 1.8 6 km ENE of Waimea, 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 35,000 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.