QuakeIndex

Earthquake · automatic estimate, may change

M 1.9md

29 km SSE of Hana, Hawaii

· 5.0 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Maui County 83 kmHawaii County 109 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 1.9 (md)
Depth
5.0 km below the surface
Felt
1 report
Nearest
Maui County, 83 km WNW
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 306 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 620,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 440,000× the energy of this one
  3. Around the size people start to feel M 3.0 39× the energy of this one
  4. This earthquake M 1.9 about 25 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 20.5072, -155.8980. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Maui County, HI 83 km (51 mi) ESE of here earthquakes near Maui County
Hawaii County, HI 109 km (68 mi) NNW of here earthquakes near Hawaii County
Kalawao County, HI 137 km (85 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

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

  1. 1.9 9 km N of Waimea, Hawaii
  2. 2.0 7 km E of Hala‘ula, Hawaii
  3. 2.6 15 km N of Kukuihaele, Hawaii
  4. 3.0 11 km E of Hala‘ula, Hawaii
  5. 2.6 8 km S of Kapaau, Hawaii
  6. 2.5 10 km WNW of Kukuihaele, Hawaii
  7. 3.6 39 km SSE of Mākena, Hawaii
  8. 3.0 11 km SW of Hāwī, Hawaii
  9. 1.9 6 km SSE of Kapaau, Hawaii
  10. 1.8 14 km ENE of Hala‘ula, Hawaii
  11. 2.2 25 km NNE of Hala‘ula, Hawaii
  12. 2.5 19 km N of Hāwī, Hawaii
  13. 3.1 6 km E of Hala‘ula, Hawaii
  14. 2.4 11 km SW of Hāwī, Hawaii
  15. 2.0 12 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 5.2 on 2021-07-05 — it released about 70,000 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.