M2.8 earthquake — 4 km WSW of Guánica, Puerto Rico
An magnitude 2.8 earthquake occurred 4 km WSW of Guánica, Puerto Rico on Sep 18, 2026 at 18:23 UTC. The epicenter was at a depth of 8 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 | M2.8 |
|---|---|
| Depth | 7.6 km |
| Coordinates | 17.955, -66.948 |
| Time | Sep 18, 18:23 UTC |
| Location | 4 km WSW of Guánica, Puerto Rico |
| USGS event ID | pr71532538 |
What this magnitude typically means
Very small earthquakes are usually only detected by instruments and are rarely felt. They are a normal part of background seismic activity. 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 |
|---|---|---|---|
| M2.5 | 1 km | Sep 18, 14:13 UTC | 3 km WSW of Guánica, Puerto Rico |
| M2.7 | 2 km | Sep 18, 16:57 UTC | 6 km WSW of Guánica, Puerto Rico |
| M2.6 | 2 km | Sep 18, 16:57 UTC | 4 km WSW of Fuig, Puerto Rico |
| M3.4 | 2 km | Sep 18, 17:20 UTC | 5 km WSW of Fuig, Puerto Rico |
| M4.8 | 2 km | Sep 18, 13:19 UTC | 5 km SW of Guánica, Puerto Rico |
| M2.6 | 2 km | Sep 18, 14:08 UTC | 3 km SW of Guánica, Puerto Rico |
Earthquake activity in this area
See this quake on the live 3D globeShakeMap, seismogram and aftershock forecastGet earthquake alertsWatchlists with email, push and Slack
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.