3.0

M3.0 Earthquake in the Puerto Rico regionAugust 2, 2023

2023-08-02 16:16:25 UTC (2023-08-02) · approx. 12:16 PM UTC-4 local

MagnitudeM3.0(md)
Time16:16 UTC12:16 PM UTC-4
Depth30.8 kmshallow crustal
Coordinates19.012°, -65.129°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 2, 2023 at 16:16 UTC, a magnitude 3.0 shallow crustal earthquake struck in the Puerto Rico region, at a depth of 30.8 km and coordinates 19.0118°, -65.1285°.

Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 19.01°, -65.13°

Earthquake Details

Magnitude
3.0 md
Depth
30.8 km
shallow crustal
Location
19.0118°N
-65.1285°E

Technical Information

Event ID
pr71420203
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
5
Azimuthal Gap
286.0°
Min Station Distance
0.676°
RMS Residual
0.47 sec
Last Updated
2023-08-02 17:06:21 UTC

Common Questions

How strong was the magnitude 3.0 earthquake in the Puerto Rico region?

The magnitude 3.0 earthquake that struck in the Puerto Rico region on August 2, 2023 at 16:16 UTC had a depth of 30.8 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 3.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: pr71420203). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, August 2, 2023). M3.0 Earthquake in the Puerto Rico regionAugust 2, 2023. Retrieved August 2, 2023 from https://www.earthquaketracker.org/earthquakes/event/pr71420203/