15 km SSW of Leilani Estates, Hawaii

2018-05-07 02:34 UTC · 9.3 km deep · released about 570 lb of TNT

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: 2018-05-07 02:34 UTC
Magnitude: M 2.9 (ml)
Depth: 9.3 km below the surface
Felt: no reports yet
Nearest: Hawaii County, 61 km WNW
Status: Reviewed by a seismologist

USGS · last changed by USGS 978 days ago · we first saw it 978 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 570 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 27,000× the energy of this one
Magna, Utah 2020 M 5.7 19,000× the energy of this one
Around the size people start to feel M 3.0 1.7× the energy of this one
This earthquake M 2.9 about 570 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

Map loads when it scrolls into view

Epicentre 19.3468, -154.9868. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Hawaii County, HI	61 km (38 mi)	ESE of here	earthquakes near Hawaii County

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

Aftershocks so far

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

1.9 17 km ESE of P?hala, Hawaii 13:06 UTC
2.4 8 km S of Volcano, Hawaii 12:26 UTC
1.9 14 km SSE of Volcano, Hawaii 11:56 UTC
1.9 14 km SSE of Volcano, Hawaii 11:53 UTC
2.6 3 km SSW of Leilani Estates, Hawaii 11:43 UTC
2.0 4 km SW of Volcano, Hawaii 11:16 UTC
2.3 12 km SSW of Leilani Estates, Hawaii 10:58 UTC
2.2 3 km WSW of Leilani Estates, Hawaii 10:45 UTC
2.0 4 km SW of Volcano, Hawaii 10:20 UTC
1.8 11 km SSE of Volcano, Hawaii 10:10 UTC
3.2 15 km ENE of P?hala, Hawaii 10:07 UTC
2.1 35 km ESE of P?hala, Hawaii 10:05 UTC
2.3 17 km SE of Fern Forest, Hawaii 10:01 UTC
1.9 6 km S of Volcano, Hawaii 09:41 UTC
2.7 16 km ENE of Pāhala, Hawaii 09:34 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 21:34 UTC. 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 6.9 on 2018-05-04 — it released about 1,200,000 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.