20 Sept 2025, 19:45 UTC · Sep 20, 3:45 PM ET
M3.6 earthquake 140 km N of Isabela, Puerto Rico
A magnitude 3.6 earthquake struck 140 km N of Isabela, Puerto Rico at Sep 20, 3:45 PM ET, 42 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.6 md |
| Time | 20 Sept 2025, 19:45 UTC |
| Location | 19.758°, -66.857° – 140 km N of Isabela, Puerto Rico |
| Depth | 42.0 km |
| Felt reports | 0 |
| USGS event | pr2025263001 |
Within 100 km
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.1 | 155 km N of Arecibo, Puerto Rico · tsunami flag | Feb 19, 9:18 AM 239 d ago | 34 km | 42 reports |
| 4.2 | 123 km N of Isabela, Puerto Rico | Sep 30, 6:07 AM 381 d ago | 39 km | 1 report |
| 4.0 | 89 km NNW of San Antonio, Puerto Rico | Dec 5, 2:32 PM 315 d ago | 38 km | – |
| 4.0 | 65 km N of Hatillo, Puerto Rico | Jul 5, 6:35 AM 103 d ago | 39 km | 4 reports |
| 3.9 | 60 km N of Hatillo, Puerto Rico | Jul 2, 3:05 AM 107 d ago | 31 km | – |
| 3.9 | 104 km N of Brenas, Puerto Rico | Jan 9, 7:24 PM 280 d ago | 42 km | 1 report |
| 3.8 | 113 km N of San Juan, Puerto Rico | Apr 28, 11:59 PM 171 d ago | 31 km | – |
| 3.8 | 135 km NNE of Punta Cana, Dominican Republic | Nov 19, 6:36 PM 331 d ago | 12 km | – |
| 3.7 | 117 km N of San Juan, Puerto Rico | Sep 5, 3:54 AM 42 d ago | 11 km | – |
| 3.7 | 57 km NNE of Isabela, Puerto Rico | Oct 14, 8:11 PM 367 d ago | 7 km | – |
| 3.6 | 104 km N of San Juan, Puerto Rico | Apr 29, 1:34 AM 171 d ago | 16 km | – |
| 3.6 | 127 km N of Isabela, Puerto Rico | Nov 24, 8:30 AM 326 d ago | 55 km | – |
FAQ
About this earthquake
How strong was the 140 km N of Isabela, Puerto Rico earthquake?
Magnitude 3.6 (md), minor – felt by people near the epicenter. Depth 42 km.
Was it felt?
No felt reports have been submitted to the USGS so far.
Were there aftershocks?
1 earthquakes within 100 km in the following two weeks are in our records, the strongest M4.2.
Earthquakes
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Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.