2.3

M2.3 Earthquake 13 km S of Honaunau-Napoopoo, HawaiiAugust 7, 2026

2026-08-07 20:44:24 UTC (2 days ago) · approx. 10:44 AM UTC-10 local

MagnitudeM2.3(ml)
Time20:44 UTC10:44 AM UTC-10
Depth16.8 kmshallow crustal
Coordinates19.333°, -155.854°
Felt by1DYFI response
StatusAutomatic (preliminary)

On August 7, 2026 at 20:44 UTC, a magnitude 2.3 shallow crustal earthquake struck 13 km S of Honaunau-Napoopoo, Hawaii, at a depth of 16.8 km and coordinates 19.3330°, -155.8537°.

Physical scale: An earthquake of magnitude 2.3 releases seismic energy equivalent to roughly 39.7 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 23 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 19.33°, -155.85°

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 M2.3 earthquake near 13 km S of Honaunau-Napoopoo, Hawaii

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

Earthquake Details

Magnitude
2.3 ml
Depth
16.8 km
shallow crustal
Location
19.3330°N
-155.8537°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
hv75014637
Event Type
earthquake
Status
Automatic
Significance
80
Stations Used
34
Azimuthal Gap
170.0°
Min Station Distance
0.071°
RMS Residual
0.14 sec
Last Updated
2026-08-07 20:51:48 UTC

Common Questions

How strong was the magnitude 2.3 earthquake near Honaunau-Napoopoo, Hawaii?

The magnitude 2.3 earthquake that struck 13 km S of Honaunau-Napoopoo, Hawaii on August 7, 2026 at 20:44 UTC had a depth of 16.8 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 2.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.3 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: hv75014637). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 7, 2026). M2.3 Earthquake 13 km S of Honaunau-Napoopoo, HawaiiAugust 7, 2026. Retrieved August 7, 2026 from https://www.earthquaketracker.org/earthquakes/event/hv75014637/