QuakeIndex

Earthquake · reviewed by a seismologist

M 4.8ml

Earthquake near Leilani Estates, HI

No earthquake was likely felt in Leilani Estates in the 24 hours to 9:29 am HST (19:29 UTC). The last one was M 2.8, 13 km (8 mi) ESE, at 6:15 pm HST on 1 November 2026, estimated intensity III (weak) in town; 1 felt report to USGS. Every earthquake near Leilani Estates

This page: a magnitude 4.8 earthquake was recorded 22 km (14 mi) southeast of Leilani Estates, HI, at 3:20 pm HST on 4 May 2018 (01:20 UTC), 11 km deep. 19 people have reported feeling it to USGS.

USGS: 22 km SE of Leilani Estates, Hawaii

52 km (32 mi) SE of Hilo, HI

3:20 pm HST, May 4, 2018 · · 11 km deep · released about 200 tons of TNT

Every earthquake near Leilani Estates Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hawaii County 82 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
3:20 pm HST on 4 May 2018 ()
Where
22 km (14 mi) southeast of Leilani Estates, HI · earthquakes near Leilani Estates
Hawaii today
every earthquake in Hawaii in the last 24 hours
Magnitude
M 4.8 (ml)
Depth
11 km below the surface
Felt
19 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Nearest
Hawaii County, 82 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2900 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

At this magnitude and depth, people at rest would likely notice it out to about 165 km (103 mi) from the epicentre. In Leilani Estates, 22 km away, the estimate is intensity IV (light). 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 22 km, intensity IV · Hawaiian Paradise Park 37 km, intensity III · Mountain View 44 km, intensity III · Volcano 50 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 200 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.8 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 840× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 38× the energy of this one
  3. Magna, Utah 2020 M 5.7 27× the energy of this one
  4. This earthquake M 4.8 about 200 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 420× more

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 1,700 times the energy of this one.

Before 2016, the USGS record lists 20 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.7 17 km SSW of Leilani Estates, Hawaii · 23 km W of this epicentre
  2. 6.7 Island of Hawai`i, Hawaii · 25 km W of this epicentre
  3. 6.2 Kilauea South Flank, Hawaii · 25 km W of this epicentre
  4. 6.2 13 km SSE of Fern Forest, Hawaii · 32 km W of this epicentre
  5. 6.1 12 km S of Volcano, Hawaii · 48 km W 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 19.3163, -154.7797. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hawaii County, HI 82 km (51 mi) WNW earthquakes near Hawaii County

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

Aftershocks so far

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

  1. 1.8 8 km S of Volcano, Hawaii
  2. 1.7 18 km SSE of Volcano, Hawaii
  3. 3.3 21 km S of Leilani Estates, Hawaii
  4. 3.0 13 km S of Fern Forest, Hawaii
  5. 2.6 15 km SSE of Fern Forest, Hawaii
  6. 1.8 15 km SSE of Volcano, Hawaii
  7. 2.2 16 km SSE of Volcano, Hawaii
  8. 2.3 Hawaii region, Hawaii
  9. 2.7 15 km S of Fern Forest, Hawaii
  10. 3.0 19 km SE of Fern Forest, Hawaii
  11. 2.3 14 km SSE of Volcano, Hawaii
  12. 2.4 14 km SSE of Volcano, Hawaii
  13. 1.9 14 km SSE of Volcano, Hawaii
  14. 2.5 14 km S of Volcano, Hawaii
  15. 2.0 20 km SSE of Volcano, 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.