Earthquake · automatic estimate, may change
M 1.8md
Earthquake near Volcano, HI
No earthquake was likely felt in Volcano in the 24 hours to 11:11 pm HST (09:11 UTC). The last one was M 1.9, 6 km (4 mi) W, at 11:09 am HST on 11 November 2026, estimated intensity II (weak) in town. Every earthquake near Volcano
This page: a magnitude 1.8 earthquake was recorded 27 km (17 mi) west of Volcano, HI, at 12:04 am HST on 24 April 2023 (10:04 UTC), 5.6 km deep. 1 person has reported feeling it to USGS. The magnitude and location are an automatic first estimate and may change.
USGS: 26 km W of Volcano, Hawaii
48 km (30 mi) WSW of Hilo, HI
- When
- 12:04 am HST on 24 April 2023 ()
- Where
- 27 km (17 mi) west of Volcano, HI · earthquakes near Volcano
- Hawaii today
- every earthquake in Hawaii in the last 24 hours
- Magnitude
- M 1.8 (md)
- Depth
- 5.6 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Hawaii County, 13 km N
- Nearest mapped fault
- Mauna Loa Volcano, 10 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 · we first saw it 1300 days ago
Earthquake alerts for Volcano, HI
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Alerts are on for .
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 12 km (7 mi) from the epicentre. In Volcano, 27 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.
How big was it?
This earthquake released about 15 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 1,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 710,000× the energy of this one
- Around the size people start to feel M 3.0 63× the energy of this one
- This earthquake M 1.8 about 15 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 5.5 on 2019-03-13 — about 410,000 times the energy of this one.
Before 2016, the USGS record lists 38 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 22 km W of Volcano, Hawaii · 8 km SSE of this epicentre
- 6.4 Kaoiki area, Hawaii · 11 km SE of this epicentre
- 6.2 8 km SW of Volcano, Hawaii · 22 km ESE of this epicentre
- 6.2 21 km N of Pahala, Hawaii · 11 km SSE of this epicentre
- 6.2 13 km SSE of Fern Forest, Hawaii · 45 km ESE 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 19.4863, -155.4835. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Hawaii County, HI | 13 km (8 mi) | N | earthquakes near Hawaii County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 2.0 11 km ENE of P?hala, Hawaii
- 1.8 5 km SW of Volcano, Hawaii
- 1.9 Island of Hawaii, Hawaii
- 2.4 11 km SE of P?hala, Hawaii
- 2.0 9 km ENE of P?hala, Hawaii
- 1.9 25 km WNW of Volcano, Hawaii
- 1.8 9 km ENE of P?hala, Hawaii
- 2.5 24 km WNW of Volcano, Hawaii
- 1.8 4 km SW of Volcano, Hawaii
- 1.8 Island of Hawaii, Hawaii
- 1.8 9 km WSW of Volcano, Hawaii
- 2.3 9 km E of P?hala, Hawaii
- 1.8 16 km ENE of P?hala, Hawaii
- 1.9 5 km SW of Volcano, Hawaii
- 1.6 27 km NNW of P?hala, 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.