M3.4 earthquake — 120 km NNE of Vieques, Puerto Rico
An magnitude 3.4 earthquake occurred 120 km NNE of Vieques, Puerto Rico on Aug 23, 2026 at 07:21 UTC. The epicenter was at a depth of 46 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 | M3.4 |
|---|---|
| Depth | 45.6 km |
| Coordinates | 19.430, -65.398 |
| Time | Aug 23, 07:21 UTC |
| Location | 120 km NNE of Vieques, Puerto Rico |
| USGS event ID | pr71529478 |
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 |
|---|---|---|---|
| M3.7 | 56 km | Aug 21, 02:36 UTC | 119 km N of Charlotte Amalie, U.S. Virgin Islands |
| M3.4 | 57 km | Aug 21, 13:31 UTC | 109 km N of Charlotte Amalie, U.S. Virgin Islands |
| M3.4 | 60 km | Aug 22, 09:06 UTC | 116 km N of Charlotte Amalie, U.S. Virgin Islands |
| M3.4 | 64 km | Aug 21, 02:41 UTC | 104 km N of Charlotte Amalie, U.S. Virgin Islands |
| M3.7 | 66 km | Aug 22, 01:53 UTC | 130 km N of Charlotte Amalie, U.S. Virgin Islands |
| M3.4 | 71 km | Aug 26, 15:48 UTC | 75 km N of San Juan, Puerto Rico |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.