Earthquake · reviewed by a seismologist
M 2.7ml
Earthquake near Pāhala, HI
No earthquake was likely felt in Pāhala in the 24 hours to 3:04 pm HST (01:04 UTC). The last one was M 2.6, 6 km (4 mi) S, at 7:36 pm HST on 8 November 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Pāhala
This page: a magnitude 2.7 earthquake was recorded 18 km (11 mi) north-northwest of Pāhala, HI, at 7:20 pm HST on 4 May 2018 (05:20 UTC), 19 km deep.
USGS: 18 km NNW of Pāhala, Hawaii
58 km (36 mi) SW of Hilo, HI
- When
- 7:20 pm HST on 4 May 2018 ()
- Where
- 18 km (11 mi) north-northwest of Pāhala, HI · earthquakes near Pāhala
- Hawaii today
- every earthquake in Hawaii in the last 24 hours
- Magnitude
- M 2.7 (ml)
- Depth
- 19 km below the surface
- Felt
- no reports yet
- Nearest
- Hawaii County, 26 km N
- Nearest mapped fault
- Ka'oiki-Honu'apo fault system, 2 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 1030 days ago
Earthquake alerts for Pāhala, 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 16 km (10 mi) from the epicentre. In Pāhala, 18 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 330 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 46,000× the energy of this one
- Magna, Utah 2020 M 5.7 33,000× the energy of this one
- Around the size people start to feel M 3.0 2.9× the energy of this one
- This earthquake M 2.7 about 330 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 2017-06-08 — about 7,700 times the energy of this one.
Before 2016, the USGS record lists 40 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 22 km W of Volcano, Hawaii · 10 km NE of this epicentre
- 6.4 Kaoiki area, Hawaii · 14 km ENE of this epicentre
- 6.3 20 km SSW of Honaunau-Napoopoo, Hawaii · 44 km WSW of this epicentre
- 6.2 8 km SW of Volcano, Hawaii · 23 km E of this epicentre
- 6.2 21 km N of Pahala, Hawaii · 8 km ENE 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 19.3648, -155.5153. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Hawaii County, HI | 26 km (16 mi) | N | earthquakes near Hawaii County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 2.4 17 km S of Volcano, Hawaii
- 2.0 15 km ENE of Pāhala, Hawaii
- 2.8 17 km E of P?hala, Hawaii
- 2.3 13 km SSW of Volcano, Hawaii
- 1.8 5 km E of P?hala, Hawaii
- 2.2 13 km ENE of Pāhala, Hawaii
- 2.0 25 km ENE of Honaunau-Napoopoo, Hawaii
- 2.0 12 km ENE of Pāhala, Hawaii
- 2.1 11 km SSE of Volcano, Hawaii
- 2.2 15 km ENE of Pāhala, Hawaii
- 1.7 8 km SW of Volcano, Hawaii
- 2.5 9 km WSW of Volcano, Hawaii
- 2.4 9 km WSW of Volcano, Hawaii
- 1.8 19 km SSE of Volcano, Hawaii
- 2.1 9 km SSW 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
- 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.