18 Sept 2026, 19:28 UTC · Sep 18, 3:28 PM ET
M3.0 earthquake 4 km WSW of Guánica, Puerto Rico
A magnitude 3.0 earthquake struck 4 km WSW of Guánica, Puerto Rico at Sep 18, 3:28 PM ET, 7 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.0 md |
| Time | 18 Sept 2026, 19:28 UTC |
| Location | 17.950°, -66.949° – 4 km WSW of Guánica, Puerto Rico |
| Depth | 7.0 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 3.5 |
| USGS event | pr71532618 |
Within 100 km
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 4.8 | 5 km SW of Guánica, Puerto Rico · PAGER green | Sep 18, 9:19 AM 28 d ago | 7 km | 86 reports |
| 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 | – |
FAQ
About this earthquake
How strong was the 4 km WSW of Guánica, Puerto Rico earthquake?
Magnitude 3.0 (md), minor – felt by people near the epicenter. Depth 7 km. Strongest estimated shaking: intensity 3.5 on the Modified Mercalli scale.
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.
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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.