Reported by USGS today.
It is the strongest of the 13 detections recorded within 20 km of this point since 16 May 2026. The last comparable one was on 31 August 2026.
What the source measured
USGS reported: 8 km WNW of Maricao, Puerto Rico
USGS recorded magnitude 3.2 at a depth of 126 km.
An estimated 26,539 people live within 15 km of this point.
Nearby, since 16 May 2026
- July 5, 2026 · score 0 · 4.2 km
- June 25, 2026 · score 0 · 6.8 km
- August 13, 2026 · score 0 · 8.6 km
How we know
One source: USGS. Not yet confirmed by a second, independent source.
Our own score for this event is 12 out of 100, at 71 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Earthquakes |
| Severity | Low |
| Calamity Score (ours) | 12 / 100 |
| Our confidence | 71% |
| Coordinates | 18.1987, -67.0575 |
| Nearest City | Mayagüez (9 km) |
| Population Exposed | 26.5K within 15 km |
| Impact Tier | minor |
| Timestamp | 2026-09-03T21:21:33.570Z |
| Source | https://earthquake.usgs.gov/earthquakes/eventpage/pr71530758 |
Score Breakdown
Technical Details
| Mag | 3.19 |
| Depth | 126.27 |
| Tsunami | false |
| Sig | 157 |
| Usgs Caribbean Mag | 3.19 |
| Usgs Caribbean Depth | 126.27 |
| Usgs Caribbean Sig | 157 |
| Usgs Caribbean Tsunami | false |
| Usgs Caribbean Region | 8 km WNW of Maricao, Puerto Rico |
| MergedSources | [{"id":"usgs_caribbean_pr71530758","source":"usgs_caribbean","severity":"low","severityValue":19.14,"timestamp":1788470493570,"latitude":18.1986666666667,"longitude":-67.0575}] |
Safety Information
If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Mayagüez?
Calamity.live data shows a earthquake event with CalamityScore 12/100, near Mayagüez (Puerto Rico), based on data from usgs. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.