Earthquake near Honaunau-Napoopoo, HI

No earthquake was likely felt in Honaunau-Napoopoo in the 24 hours to 1:15 pm HST (23:15 UTC). The last one was M 3.1, 26 km (16 mi) ESE, at 11:59 am HST on 4 November 2026, estimated intensity II (weak) in town; 2 felt reports to USGS. Every earthquake near Honaunau-Napoopoo

This page: a magnitude 1.9 earthquake was recorded 23 km (14 mi) east of Honaunau-Napoopoo, HI, at 8:34 am HST on 21 October 2022 (18:34 UTC), 2.8 km deep. The magnitude and location are an automatic first estimate and may change.

USGS: 22 km E of Honaunau-Napoopoo, Hawaii

8:34 am HST, Oct 21, 2022 · 2022-10-21 18:34 UTC · 2.8 km deep · released about 21 lb of TNT

Every earthquake near Honaunau-Napoopoo Felt it? Tell USGS Check my area

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: 8:34 am HST on 21 October 2022 (2022-10-21 18:34 UTC)
Where: 23 km (14 mi) east of Honaunau-Napoopoo, HI · earthquakes near Honaunau-Napoopoo
Hawaii today: every earthquake in Hawaii in the last 24 hours
Magnitude: M 1.9 (ml)
Depth: 2.8 km below the surface
Felt: no reports yet
Nearest: Hawaii County, 20 km NE
Nearest mapped fault: Mauna Loa Volcano, 5 km from its surface trace — near is not the same as on
Status: Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS 1484 days ago · we first saw it 1484 days ago

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 14 km (9 mi) from the epicentre. In Honaunau-Napoopoo, 23 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.

Earthquakes near other towns within 30 km: Captain Cook, Kealakekua.

How big was it?

This earthquake released about 21 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.

Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
Magna, Utah 2020 M 5.7 520,000× the energy of this one
Around the size people start to feel M 3.0 46× the energy of this one
This earthquake M 1.9 about 21 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 5.4 on 2018-06-01 — about 180,000 times the energy of this one.

Before 2016, the USGS record lists 31 earthquakes of M5 or more within 50 km; the five largest:

6.7 22 km W of Volcano, Hawaii · 22 km ESE of this epicentre Nov 16, 1983
6.5 Hualālai area, Hawaii · 47 km NW of this epicentre Oct 6, 1929
6.4 Kaoiki area, Hawaii · 27 km ESE of this epicentre Mar 28, 1915
6.3 20 km SSW of Honaunau-Napoopoo, Hawaii · 37 km SW of this epicentre Aug 21, 1951
6.2 8 km SW of Volcano, Hawaii · 38 km ESE of this epicentre Nov 2, 1918

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

Map loads when it scrolls into view

Nearby places

Place	Distance	Direction from the epicentre
Hawaii County, HI	20 km (12 mi)	NE	earthquakes near Hawaii County

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.

2.6 26 km E of Honaunau-Napoopoo, Hawaii 15:34 UTC
2.1 2 km W of Pāhala, Hawaii 15:24 UTC
2.0 13 km ESE of P?hala, Hawaii 14:52 UTC
2.2 27 km E of Honaunau-Napoopoo, Hawaii 11:06 UTC
2.9 11 km E of Pāhala, Hawaii 10:35 UTC
2.2 9 km E of P?hala, Hawaii 08:47 UTC
3.3 9 km E of P?hala, Hawaii 08:44 UTC
1.9 6 km S of P?hala, Hawaii 08:29 UTC
2.9 30 km E of Honaunau-Napoopoo, Hawaii 06:35 UTC
2.3 13 km SSW of Volcano, Hawaii 06:33 UTC
1.8 3 km S of P?hala, Hawaii 05:37 UTC
2.0 7 km ENE of P?hala, Hawaii 23:43 UTC
2.1 2 km W of P?hala, Hawaii 23:40 UTC
2.3 22 km WNW of Volcano, Hawaii 23:35 UTC
2.2 22 km WNW of Volcano, Hawaii 23:23 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 23:15 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.