Earthquake reference
39 km NNW of San Antonio, Puerto Rico
USGS recorded this 3.6 magnitude event near 39 km NNW of San Antonio, Puerto Rico at 2026-07-28T23:50:06.540000+00:00. The published hypocentral depth is 9 km and the review status is reviewed. Event parameters can be revised as additional observations are processed. Nearby airports and postal locations on this page are calculated spatial references only; they do not establish administrative jurisdiction, damage, causation or future risk. This record is not an earthquake forecast or emergency alert.
Key facts
- Magnitude
- 3.6
- Magnitude type
- md
- Occurred at
- 2026-07-28T23:50:06.540000+00:00
- Updated at
- 2026-07-29T01:01:47.037000+00:00
- Review status
- reviewed
- Event type
- earthquake
- Felt reports
- 1
- Community intensity
- 2
- Tsunami flag
- No
- Significance
- 200
- Network
- pr
- Latitude
- 18.8081
- Longitude
- -67.2778
- Depth (km)
- 9
- USGS event page
- https://earthquake.usgs.gov/earthquakes/eventpage/pr2026209003
Upstream revision context
USGS event revision
This timeline contains versions captured by DataOfWorld; it is not a complete official revision archive.
| Updated | Status | Payload digest |
|---|---|---|
| 2026-07-29T01:01:47.037000+00:00 | reviewed | c108decf7181 |
Associated event IDs: pr2026209003, us6000tgiy
Field-level provenance
Sources for this profile
Dates and licenses apply to the specific facts and series supplied by each source.
USGS Earthquake Hazards Program
- Applicable date
- 2026-07-28
- Dataset version
- 63e48b3f8d6c
- License
- United States public domain
- Attribution
- U.S. Geological Survey
DataOfWorld deterministic earthquake profile template
- Applicable date
- 2026-07-28
- Dataset version
- earthquake-profile-v1
- License
- Original DataOfWorld text
- Attribution
- DataOfWorld
Reference data can change. Verify consequential decisions against the original source.