QuakeIndex

Earthquake · automatic estimate, may change

M 1.8ml

Earthquake near Volcano, HI

Yes: an earthquake was likely felt in Volcano in the last 24 hours. M 1.9, 10 km (6 mi) SE of Volcano, at 8:20 am HST on 18 October 2026 (18:20 UTC); the estimated shaking in Volcano was intensity II (weak). Every earthquake near Volcano

This page: a magnitude 1.8 earthquake was recorded 9 km (6 mi) south-southwest of Volcano, HI, at 10:53 am HST on 17 October 2026 (20:53 UTC), less than 1 km deep. The magnitude and location are an automatic first estimate and may change.

USGS: 9 km SSW of Volcano, Hawaii

41 km (25 mi) SSW of Hilo, HI

10:53 am HST, Oct 17, 2026 · · 0.1 km deep · released about 13 lb of TNT

10 km30 km60 km120 km N Hawaii County 36 km
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
10:53 am HST on 17 October 2026 ()
Where
9 km (6 mi) south-southwest of Volcano, HI · earthquakes near Volcano
Magnitude
M 1.8 (ml)
Depth
0.1 km below the surface
Felt
no reports yet
Nearest
Hawaii County, 36 km NW
Nearest mapped fault
Koa'e fault system, under 1 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 27 hours 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 13 km (8 mi) from the epicentre. In Volcano, 9 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: Volcano 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 13 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.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 810,000× the energy of this one
  3. Around the size people start to feel M 3.0 72× the energy of this one
  4. This earthquake M 1.8 about 13 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 51,000,000 times the energy of this one.

Before 2016, the USGS record lists 45 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.7 17 km SSW of Leilani Estates, Hawaii · 28 km E of this epicentre
  2. 6.7 Island of Hawai`i, Hawaii · 25 km E of this epicentre
  3. 6.7 22 km W of Volcano, Hawaii · 21 km WNW of this epicentre
  4. 6.4 Kaoiki area, Hawaii · 16 km WNW of this epicentre
  5. 6.2 Kilauea South Flank, Hawaii · 25 km E 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 19.3642, -155.2613. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hawaii County, HI 36 km (23 mi) NW earthquakes near Hawaii County

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

Aftershocks so far

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

  1. 2.4 27 km SSE of Volcano, Hawaii
  2. 1.9 14 km SE of Fern Forest, Hawaii
  3. 2.7 3 km SW of Pāhala, Hawaii
  4. 1.9 9 km SSW of Fern Forest, Hawaii
  5. 2.0 7 km SW of Volcano, Hawaii
  6. 2.4 12 km SSE of Volcano, Hawaii
  7. 2.0 12 km SW of Leilani Estates, Hawaii
  8. 2.4 15 km S of Volcano, Hawaii
  9. 2.1 15 km WSW of Volcano, Hawaii
  10. 1.7 22 km WNW of Volcano, Hawaii
  11. 1.8 12 km NE of Pāhala, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.