M3.0 earthquake — 4 km WSW of Guánica, Puerto Rico
An magnitude 3.0 earthquake occurred 4 km WSW of Guánica, Puerto Rico on Sep 18, 2026 at 19:28 UTC. The epicenter was at a depth of 7 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.
Event data
| Magnitude | M3.0 |
|---|---|
| Depth | 7.0 km |
| Coordinates | 17.950, -66.949 |
| Time | Sep 18, 19:28 UTC |
| Location | 4 km WSW of Guánica, Puerto Rico |
| USGS event ID | pr71532618 |
What this magnitude typically means
Minor earthquakes are often felt close to the epicenter but almost never cause damage. Whether you feel one at all depends on how near and how shallow it is. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M2.8 | 1 km | Sep 18, 18:23 UTC | 4 km WSW of Guánica, Puerto Rico |
| M2.7 | 1 km | Sep 18, 16:57 UTC | 6 km WSW of Guánica, Puerto Rico |
| M4.8 | 1 km | Sep 18, 13:19 UTC | 5 km SW of Guánica, Puerto Rico |
| M2.5 | 2 km | Sep 18, 14:13 UTC | 3 km WSW of Guánica, Puerto Rico |
| M2.6 | 2 km | Sep 18, 14:08 UTC | 3 km SW of Guánica, Puerto Rico |
| M2.9 | 2 km | Sep 18, 13:35 UTC | 4 km SW of Guánica, Puerto Rico |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.