QuakeIndex

Earthquake · reviewed by a seismologist

M 4.0ml

28 km SSW of Hana, Hawaii

· 31 km deep · released about 13 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Maui County 69 kmHawaii County 116 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 4.0 (ml)
Depth
31 km below the surface
Felt
146 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
USGS impact alert
green
Nearest
Maui County, 69 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1317 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 146 people have reported feeling it to USGS.

How big was it?

This earthquake released about 13 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 13,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 580× the energy of this one
  3. Magna, Utah 2020 M 5.7 410× the energy of this one
  4. This earthquake M 4.0 about 13 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 28× 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 20.5063, -156.0515. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Maui County, HI 69 km (43 mi) SE of here earthquakes near Maui County
Hawaii County, HI 116 km (72 mi) NNW of here earthquakes near Hawaii County
Kalawao County, HI 124 km (77 mi) SE of here earthquakes near Kalawao County

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

Aftershocks so far

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

  1. 2.7 25 km WSW of Hāwī, Hawaii
  2. 2.4 22 km WSW of Hāwī, Hawaii
  3. 2.6 12 km ENE of Hala‘ula, Hawaii
  4. 2.8 20 km NW of Hāwī, Hawaii
  5. 3.1 42 km WSW of Hāwī, Hawaii
  6. 3.2 22 km WSW of Hāwī, Hawaii
  7. 2.6 10 km S of Hāwī, Hawaii
  8. 3.6 31 km SSW of Hana, Hawaii
  9. 3.3 34 km WNW of Puako, Hawaii
  10. 3.1 8 km S of Kapaau, Hawaii
  11. 2.6 18 km SSE of Hana, Hawaii
  12. 2.5 4 km NE of Hala‘ula, Hawaii
  13. 3.7 2 km SE of Hana, Hawaii
  14. 2.3 28 km WNW of Puako, Hawaii
  15. 2.2 13 km SSW of Kapaau, 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 4.7 on 2022-01-25 — it released about 12 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.