Earthquake · reviewed by a seismologist
M 1.8md
Earthquake near Kalaoa, HI
No earthquake was likely felt in Kalaoa in the 24 hours to 1:37 am HST (11:37 UTC). The last one was M 2.9, 5 km (3 mi) NE, at 12:08 pm HST on 6 November 2026, estimated intensity III (weak) in town; 29 felt reports to USGS. Every earthquake near Kalaoa
This page: a magnitude 1.8 earthquake was recorded 16 km (10 mi) east of Kalaoa, HI, at 8:48 am HST on 20 February 2024 (18:48 UTC), 12 km deep.
USGS: 15 km E of Kalaoa, Hawaii
- When
- 8:48 am HST on 20 February 2024 ()
- Where
- 16 km (10 mi) east of Kalaoa, HI · earthquakes near Kalaoa
- Hawaii today
- every earthquake in Hawaii in the last 24 hours
- Magnitude
- M 1.8 (md)
- Depth
- 12 km below the surface
- Felt
- no reports yet
- Nearest
- Hawaii County, 38 km ESE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 999 days ago
Earthquake alerts for Kalaoa, HI
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Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 5 km (3 mi) from the epicentre. In Kalaoa, 16 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: Hōlualoa, Kailua-Kona, Kahaluu-Keauhou, Honalo, Waikoloa, Kealakekua.
How big was it?
This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 790,000× the energy of this one
- Around the size people start to feel M 3.0 70× the energy of this one
- This earthquake M 1.8 about 14 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 5.3 on 2019-04-14 — about 230,000 times the energy of this one.
Before 2016, the USGS record lists 9 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 14 km SW of Puako, Hawaii · 19 km NNW of this epicentre
- 6.5 Hualālai area, Hawaii · 18 km W of this epicentre
- 6.0 20 km SW of Hawi, Hawaii · 47 km NNW of this epicentre
- 5.6 3 km NW of Kalaoa, Hawaii · 18 km W of this epicentre
- 5.6 30 km WNW of Volcano, Hawaii · 41 km SE of this epicentre
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 19.7305, -155.8332. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Hawaii County, HI | 38 km (23 mi) | ESE | earthquakes near Hawaii 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.
- 1.8 26 km N of Pāhala, Hawaii
- 1.6 13 km E of Honaunau-Napoopoo, Hawaii
- 1.8 26 km E of Honaunau-Napoopoo, Hawaii
- 1.8 4 km WSW of Kalaoa, Hawaii
- 1.7 2 km W of Honalo, Hawaii
- 1.8 14 km SSW of Puako, Hawaii
- 1.9 28 km E of Honaunau-Napoopoo, Hawaii
- 2.1 10 km ESE of Honaunau-Napoopoo, Hawaii
- 1.7 23 km SE of Waimea, Hawaii
- 2.0 29 km NNW of Pāhala, Hawaii
- 1.8 23 km WNW of Volcano, Hawaii
- 1.6 1 km SW of Honaunau-Napoopoo, Hawaii
- 1.7 15 km ENE of Honaunau-Napoopoo, Hawaii
- 2.2 14 km S of Honoka‘a, Hawaii
- 2.2 0 km NW of Kailua-Kona, 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.
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.