17 Oct 2025, 23:56 UTC · Oct 17, 7:56 PM ET
M3.6 earthquake 91 km N of Isabela, Puerto Rico
A magnitude 3.6 earthquake struck 91 km N of Isabela, Puerto Rico at Oct 17, 7:56 PM ET, 29 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.6 md |
| Time | 17 Oct 2025, 23:56 UTC |
| Location | 19.326°, -67.064° – 91 km N of Isabela, Puerto Rico |
| Depth | 29.0 km |
| Felt reports | 0 |
| USGS event | pr2025290000 |
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 |
| 4.8 | 54 km NNW of San Antonio, Puerto Rico | Jul 23, 10:42 PM 85 d ago | 9 km | 227 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 | 50 km NNW of San Antonio, Puerto Rico | Aug 30, 1:47 AM 48 d ago | 53 km | – |
| 4.0 | 65 km N of Hatillo, Puerto Rico | Jul 5, 6:35 AM 103 d ago | 39 km | 4 reports |
| 3.9 | 50 km NNW of San Antonio, Puerto Rico | Mar 30, 5:19 AM 200 d ago | 12 km | – |
| 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 | 92 km NW of San Antonio, Puerto Rico | Jul 3, 10:21 PM 105 d ago | 67 km | – |
| 3.8 | 135 km NNE of Punta Cana, Dominican Republic | Nov 19, 6:36 PM 331 d ago | 12 km | – |
| 3.8 | 84 km NE of Punta Cana, Dominican Republic | May 23, 10:51 PM 146 d ago | 63 km | – |
FAQ
About this earthquake
How strong was the 91 km N of Isabela, Puerto Rico earthquake?
Magnitude 3.6 (md), minor – felt by people near the epicenter. Depth 29 km.
Was it felt?
No felt reports have been submitted to the USGS so far.
Were there aftershocks?
No earthquakes within 100 km have followed so far in our records.
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.