Earthquake near Nanawale Estates, HI

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

At this magnitude and depth, people at rest would likely notice it out to about 10 km (6 mi) from the epicentre. In Nanawale Estates, 4 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Leilani Estates 5 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
3. Around the size people start to feel M 3.0 150× the energy of this one
4. This earthquake M 1.5 about 6.2 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.

For this area

The largest earthquake within 50 km since 2016 was M 6.9 on 2018-05-04 — about 110,000,000 times the energy of this one.

Before 2016, the USGS record lists 26 earthquakes of M5 or more within 50 km; the five largest:

1. 7.7 17 km SSW of Leilani Estates, Hawaii · 22 km SW of this epicentre Nov 29, 1975
2. 6.7 Island of Hawai`i, Hawaii · 22 km SW of this epicentre Sep 21, 1908
3. 6.2 Kilauea South Flank, Hawaii · 22 km SW of this epicentre May 4, 1905
4. 6.2 8 km SW of Volcano, Hawaii · 46 km WSW of this epicentre Nov 2, 1918
5. 6.2 13 km SSE of Fern Forest, Hawaii · 26 km SW of this epicentre Jun 26, 1989

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 19.4902, -154.8765. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 2.0 4 km ESE of Nanawale Estates, Hawaii 06:49 UTC
2. 2.0 Island of Hawaii, Hawaii 06:21 UTC
3. 1.8 3 km ESE of Leilani Estates, Hawaii 06:21 UTC
4. 3.0 5 km SW of Volcano, Hawaii 06:08 UTC
5. 1.9 14 km SSE of Fern Forest, Hawaii 05:39 UTC
6. 2.8 4 km ESE of Nanawale Estates, Hawaii 05:28 UTC
7. 2.0 10 km WSW of Volcano, Hawaii 05:25 UTC
8. 1.5 5 km ESE of Nanawale Estates, Hawaii 05:11 UTC
9. 1.9 6 km SW of Volcano, Hawaii 05:10 UTC
10. 2.1 5 km SE of Leilani Estates, Hawaii 05:00 UTC
11. 2.1 2 km ESE of Leilani Estates, Hawaii 04:59 UTC
12. 2.4 6 km ESE of Leilani Estates, Hawaii 04:03 UTC
13. 2.0 4 km SSE of Leilani Estates, Hawaii 03:59 UTC
14. 1.7 4 km E of Leilani Estates, Hawaii 03:54 UTC
15. 1.7 3 km SE of Nanawale Estates, Hawaii 03:49 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 10:23 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

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.