Earthquake · reviewed by a seismologist
M 4.9ml
18 km SW of Laup?hoehoe, Hawaii
- When
- Magnitude
- M 4.9 (ml)
- Depth
- 33 km below the surface
- Felt
- 1378 reports · strongest reported intensity V
- Measured shaking
- intensity VI (ShakeMap)
- USGS impact alert
- green
- Nearest
- Hawaii County, 33 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2288 days ago
This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 1378 people have reported feeling it to USGS.
How big was it?
This earthquake released about 370 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.9 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 450× the energy of this one
- Mineral, Virginia 2011 M 5.8 20× the energy of this one
- Magna, Utah 2020 M 5.7 14× the energy of this one
- This earthquake M 4.9 about 370 tons of TNT
- Around the size people start to feel M 3.0 this one released 790× 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 19.8638, -155.3562. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Hawaii County, HI | 33 km (21 mi) | NNE of here | earthquakes near Hawaii 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.
- 2.1 30 km E of Honaunau-Napoopoo, Hawaii
- 2.1 17 km ENE of Kalaoa, Hawaii
- 2.2 8 km NW of Kurtistown, Hawaii
- 2.0 14 km S of Honoka‘a, Hawaii
- 1.9 5 km W of Volcano, Hawaii
- 2.0 15 km SSW of Honoka‘a, Hawaii
- 1.7 5 km WSW of Volcano, Hawaii
- 1.8 23 km W of Volcano, Hawaii
- 2.7 Island of Hawaii, Hawaii
- 2.0 29 km ENE of Honaunau-Napoopoo, Hawaii
- 1.9 4 km WSW of Volcano, Hawaii
- 2.5 7 km NNE of Kukuihaele, Hawaii
- 2.2 27 km ENE of Honaunau-Napoopoo, Hawaii
- 1.9 20 km W of Volcano, Hawaii
- 1.7 5 km WSW 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.
For this area
The largest earthquake within 50 km in our catalogue was M 5.3 on 2019-04-14 — it released about 4.1 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.