3.1

M3.1 Earthquake 9 km ENE of P?hala, HawaiiFebruary 24, 2022

2022-02-24 22:20:37 UTC (2022-02-24) · approx. 12:20 PM UTC-10 local

MagnitudeM3.1(md)
Time22:20 UTC12:20 PM UTC-10
Depth33.0 kmshallow crustal
Coordinates19.227°, -155.393°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 24, 2022 at 22:20 UTC, a magnitude 3.1 shallow crustal earthquake struck 9 km ENE of P?hala, Hawaii, at a depth of 33.0 km and coordinates 19.2273°, -155.3932°.

Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 607 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 79 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 19.23°, -155.39°

Earthquake Details

Magnitude
3.1 md
Depth
33.0 km
shallow crustal
Location
19.2273°N
-155.3932°E

Technical Information

Event ID
hv72928277
Event Type
earthquake
Status
✓ Reviewed
Significance
145
Stations Used
53
Azimuthal Gap
147.0°
RMS Residual
0.13 sec
Last Updated
2022-05-04 13:40:27 UTC

Common Questions

How strong was the magnitude 3.1 earthquake near P?hala, Hawaii?

The magnitude 3.1 earthquake that struck 9 km ENE of P?hala, Hawaii on February 24, 2022 at 22:20 UTC had a depth of 33.0 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: hv72928277). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, February 24, 2022). M3.1 Earthquake 9 km ENE of P?hala, HawaiiFebruary 24, 2022. Retrieved May 4, 2022 from https://www.earthquaketracker.org/earthquakes/event/hv72928277/