M4.8 earthquake 5 km SW of Guánica, Puerto Rico
A magnitude 4.8 earthquake struck 5 km SW of Guánica, Puerto Rico at Sep 18, 9:19 AM ET, 7 km deep, light – felt by most people nearby, rattling windows, rarely damage. 86 people reported feeling it.
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| Magnitude | 4.8 ml |
| Time | 18 Sept 2026, 13:19 UTC |
| Location | 17.939°, -66.945° – 5 km SW of Guánica, Puerto Rico |
| Depth | 7.0 km |
| Felt reports | 86 |
| Max. estimated intensity (MMI) | 4.4 |
| PAGER alert | green |
| USGS event | pr2026261000 |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 4.2 | 2 km SW of Río Lajas, Puerto Rico · PAGER green | Apr 12, 10:06 PM 187 d ago | 115 km | 81 reports |
| 3.9 | 2 km SW of Indios, Puerto Rico | Jul 8, 4:07 PM 100 d ago | 15 km | 9 reports |
| 3.9 | 19 km NW of Rincón, Puerto Rico | Oct 3, 6:35 AM 13 d ago | 6 km | 11 reports |
| 3.7 | 15 km SSE of Guánica, Puerto Rico · PAGER green | Oct 6, 10:01 PM 375 d ago | 11 km | 2 reports |
| 3.7 | 7 km SE of La Parguera, Puerto Rico | Apr 27, 2:31 AM 173 d ago | 7 km | 2 reports |
| 3.6 | 16 km SSE of Guánica, Puerto Rico | Oct 7, 1:19 AM 375 d ago | 7 km | 2 reports |
| 3.6 | 45 km WSW of Stella, Puerto Rico | Aug 13, 3:16 PM 64 d ago | 104 km | – |
| 3.6 | 4 km WSW of Guánica, Puerto Rico | Aug 7, 12:48 AM 71 d ago | 10 km | 12 reports |
| 3.5 | 3 km NW of Guayanilla, Puerto Rico | Mar 12, 12:34 AM 219 d ago | 13 km | 8 reports |
| 3.5 | 61 km WSW of Stella, Puerto Rico | Mar 14, 12:20 AM 217 d ago | 127 km | – |
| 3.5 | 4 km SSW of Indios, Puerto Rico | Jul 28, 1:59 PM 80 d ago | 12 km | – |
| 3.5 | 5 km WNW of Mayagüez, Puerto Rico | May 1, 11:57 AM 168 d ago | 25 km | – |
About this earthquake
How strong was the 5 km SW of Guánica, Puerto Rico earthquake?
Magnitude 4.8 (ml), light – felt by most people nearby, rattling windows, rarely damage. Depth 7 km. Strongest estimated shaking: intensity 4.4 on the Modified Mercalli scale.
Was it felt?
86 people reported feeling it to the USGS "Did You Feel It?" survey; the highest reported intensity was 5.9.
Were there aftershocks?
No earthquakes within 100 km have followed so far in our records.
More
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.