2.1

M2.1 Earthquake 2 km NNE of Guayanilla, Puerto Rico — October 4, 2026

2026-10-04 14:36:59 UTC (7 hours ago) · approx. 10:36 AM UTC-4 local

MagnitudeM2.1(md)
Time14:36 UTC≈ 10:36 AM UTC-4
Depth14.0 kmshallow crustal
Coordinates18.042°, -66.785°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 18.04°, -66.78°

Earthquake Details

Magnitude
2.1 md
Depth
14.0 km
shallow crustal
Location
18.0422°N
-66.7848°E

Technical Information

Event ID
pr71535723
Event Type
earthquake
Status
✓ Reviewed
Significance
70
Stations Used
19
Azimuthal Gap
75.0°
Min Station Distance
0.023°
RMS Residual
0.19 sec
Last Updated
2026-10-04 14:59:08 UTC

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Actions

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Location

Puerto Rico
View all Puerto Rico earthquakes

Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: pr71535723). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, October 4, 2026). M2.1 Earthquake 2 km NNE of Guayanilla, Puerto Rico — October 4, 2026. Retrieved October 4, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71535723/