3.1

M3.1 Earthquake 8 km S of Kapaau, HawaiiFebruary 13, 2025

2025-02-13 16:31:08 UTC (2025-02-13) · approx. 6:31 AM UTC-10 local

Felt by 22 people across nearby locations.

MagnitudeM3.1(ml)
Time16:31 UTC6:31 AM UTC-10
Depth23.5 kmshallow crustal
Coordinates20.158°, -155.795°
Felt by22DYFI responses
Status✓ Reviewed by USGS

On February 13, 2025 at 16:31 UTC, a magnitude 3.1 shallow crustal earthquake struck 8 km S of Kapaau, Hawaii, at a depth of 23.5 km and coordinates 20.1582°, -155.7948°. This earthquake was detected by 26 seismic stations with limited location accuracy due to sparse station coverage and was assigned a USGS significance rating of 154, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Hawaii, a region characterized by intraplate volcanic activity over the Hawaiian mantle plume hotspot, with seismicity driven by magma intrusion and flank instability. View all earthquakes in Hawaii.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 20.16°, -155.79°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 22 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M3.1 earthquake near 8 km S of Kapaau, Hawaii

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
3.1 ml
Depth
23.5 km
shallow crustal
Location
20.1582°N
-155.7948°E
Felt Reports
22
DYFI responses
Community Intensity
2.8
CDI from reports

Technical Information

Event ID
hv74614702
Event Type
earthquake
Status
✓ Reviewed
Significance
154
Stations Used
26
Azimuthal Gap
297.0°
Min Station Distance
0.037°
RMS Residual
0.11 sec
Last Updated
2025-05-02 16:26:17 UTC

Common Questions

How strong was the magnitude 3.1 earthquake near Kapaau, Hawaii?

The magnitude 3.1 earthquake that struck 8 km S of Kapaau, Hawaii on February 13, 2025 at 16:31 UTC had a depth of 23.5 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 20.1582°, -155.7948°, which is 8 km S of Kapaau, Hawaii. View all earthquakes in Hawaii.

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.

Has Hawaii had earthquakes this big before?

The largest recorded earthquake in Hawaii was the M7.9 Ka'u District earthquake of April 2, 1868. Today's magnitude 3.1 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: hv74614702). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, February 13, 2025). M3.1 Earthquake 8 km S of Kapaau, HawaiiFebruary 13, 2025. Retrieved May 2, 2025 from https://www.earthquaketracker.org/earthquakes/event/hv74614702/