M3.6 earthquake — 93 km N of Brenas, Puerto Rico
An magnitude 3.6 earthquake occurred 93 km N of Brenas, Puerto Rico on Oct 21, 2026 at 00:55 UTC. The epicenter was at a depth of 69 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 | M3.6 |
|---|---|
| Depth | 69.0 km |
| Coordinates | 19.305, -66.258 |
| Time | Oct 21, 00:55 UTC |
| Location | 93 km N of Brenas, Puerto Rico |
| USGS event ID | pr2026294000 |
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 |
|---|---|---|---|
| M3.0 | 32 km | Oct 26, 03:41 UTC | 66 km N of San Juan, Puerto Rico |
| M3.3 | 40 km | Oct 21, 05:01 UTC | 53 km N of Brenas, Puerto Rico |
| M3.0 | 68 km | Oct 27, 03:16 UTC | 49 km N of Suárez, Puerto Rico |
| M3.2 | 122 km | Oct 25, 04:41 UTC | 65 km N of Culebra, Puerto Rico |
| M2.8 | 124 km | Oct 25, 04:58 UTC | 75 km NNW of Charlotte Amalie, U.S. Virgin Islands |
| M3.4 | 126 km | Oct 25, 04:51 UTC | 65 km NNW of Charlotte Amalie, U.S. Virgin Islands |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.