3.2

M3.2 Earthquake near Island of Hawaii, Hawaii — April 30, 2021

2021-04-30 15:33:46 UTC (2021-04-30) · approx. 5:33 AM UTC-10 local

MagnitudeM3.2(ml)
Time15:33 UTC≈ 5:33 AM UTC-10
Depth0.6 kmshallow crustal
Coordinates19.201°, -155.540°
Felt by1DYFI response
Status✓ Reviewed by USGS

On April 30, 2021 at 15:33 UTC, a magnitude 3.2 shallow crustal earthquake struck near Island of Hawaii, Hawaii, at a depth of 0.6 km and coordinates 19.2010°, -155.5398°.

Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 985 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 99 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 19.20°, -155.54°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response 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 M3.2 earthquake near Island of Hawaii, Hawaii

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

Earthquake Details

Magnitude
3.2 ml
Depth
0.6 km
shallow crustal
Location
19.2010°N
-155.5398°E
Felt Reports
1
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
hv72449007
Event Type
earthquake
Status
✓ Reviewed
Significance
159
Stations Used
50
Azimuthal Gap
65.0°
RMS Residual
0.17 sec
Last Updated
2021-05-30 13:21:16 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Island of Hawaii, Hawaii?

The magnitude 3.2 earthquake that struck near Island of Hawaii, Hawaii on April 30, 2021 at 15:33 UTC had a depth of 0.6 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 3.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: hv72449007). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, April 30, 2021). M3.2 Earthquake near Island of Hawaii, Hawaii — April 30, 2021. Retrieved May 30, 2021 from https://www.earthquaketracker.org/earthquakes/event/hv72449007/