QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Hilo, HI

No earthquake was likely felt in Hilo in the 24 hours to 11:55 am HST (21:55 UTC). The last one was M 3.1, 41 km (25 mi) S, at 3:09 pm HST on 12 October 2026, estimated intensity II (weak) in town; 6 felt reports to USGS. Every earthquake near Hilo

This page: a magnitude 2.5 earthquake was recorded 39 km (24 mi) south-southeast of Hilo, HI, at 11:01 pm HST on 30 March 2023 (09:01 UTC), 6.0 km deep.

USGS: Hawaii region, Hawaii

34 km (21 mi) SSE of Hilo, HI

11:01 pm HST, Mar 30, 2023 · · 6.0 km deep · released about 150 lb of TNT

Every earthquake near Hilo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hawaii County 58 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
11:01 pm HST on 30 March 2023 ()
Where
39 km (24 mi) south-southeast of Hilo, HI · earthquakes near Hilo
Hawaii today
every earthquake in Hawaii in the last 24 hours
Magnitude
M 2.5 (ml)
Depth
6.0 km below the surface
Felt
no reports yet
Nearest
Hawaii County, 58 km WNW
Nearest mapped fault
Hilina fault system, 7 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1259 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 21 km (13 mi) from the epicentre. In Hilo, 39 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: Leilani Estates 12 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 99,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 70,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.2× the energy of this one
  4. This earthquake M 2.5 about 150 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 4,400,000 times the energy of this one.

Before 2016, the USGS record lists 35 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.7 17 km SSW of Leilani Estates, Hawaii · 7 km S of this epicentre
  2. 6.7 Island of Hawai`i, Hawaii · 5 km SSW of this epicentre
  3. 6.7 22 km W of Volcano, Hawaii · 48 km W of this epicentre
  4. 6.4 Kaoiki area, Hawaii · 43 km W of this epicentre
  5. 6.2 Kilauea South Flank, Hawaii · 5 km SSW 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 19.3917, -154.9958. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hawaii County, HI 58 km (36 mi) WNW earthquakes near Hawaii County

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

Aftershocks so far

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

  1. 1.8 9 km ENE of P?hala, Hawaii
  2. 1.9 Island of Hawaii, Hawaii
  3. 1.8 9 km E of P?hala, Hawaii
  4. 2.2 7 km SW of Volcano, Hawaii
  5. 2.0 10 km ENE of P?hala, Hawaii
  6. 2.3 12 km ESE of P?hala, Hawaii
  7. 2.4 9 km E of P?hala, Hawaii
  8. 1.8 8 km SW of Volcano, Hawaii
  9. 2.0 11 km NE of P?hala, Hawaii
  10. 2.3 10 km ENE of P?hala, Hawaii
  11. 2.4 10 km ENE of P?hala, Hawaii
  12. 1.9 11 km NE of P?hala, Hawaii
  13. 2.3 9 km ENE of P?hala, Hawaii
  14. 2.3 9 km ENE of P?hala, Hawaii
  15. 2.4 Island of Hawaii, 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.