M3.3 Earthquake – 53 km N of Brenas, Puerto Rico
Oct 21, 2026 05:01 UTC (20 days ago)
- Magnitude
- 3.3 (md)
- Time
- Oct 21, 2026 05:01 UTC
- Depth
- 26.3 km (16.3 mi)
- Epicenter
- 18.949°, -66.317°
- Location
- 53 km N of Brenas, Puerto Rico
- Reported by
- USGS, EMSC · USGS event page
Each circle is an earthquake. Bigger and redder = stronger. The ring marks 100 km around the epicenter.
Magnitude<33–44–55–66+AgeLast hourLast 24 hOlder
Other earthquakes within 100 km (last 30 days)
| Mag | Location | When |
|---|---|---|
| 1.5 | 0 km SSW of Barranquitas, Puerto Rico | 2 days ago Nov 7, 2026 23:44 UTC |
| 3.2 | 62 km NNE of Luquillo, Puerto Rico | 4 days ago Nov 6, 2026 10:59 UTC |
| 2.4 | 6 km N of San Antonio, Puerto Rico | 4 days ago Nov 6, 2026 10:20 UTC |
| 2.8 | 3 km WNW of Orocovis, Puerto Rico | 4 days ago Nov 5, 2026 13:37 UTC |
| 3.2 | 106 km N of Isabela, Puerto Rico | 5 days ago Nov 4, 2026 23:55 UTC |
| 2.5 | 25 km N of Tierras Nuevas Poniente, Puerto Rico | 7 days ago Nov 3, 2026 03:34 UTC |
| 2.8 | 18 km NNE of Tierras Nuevas Poniente, Puerto Rico | 9 days ago Oct 31, 2026 21:03 UTC |
| 5.1 | 55 km N of Fajardo, Puerto Rico | 13 days ago Oct 28, 2026 09:43 UTC |
| 3.4 | 31 km N of Isabela, Puerto Rico | 13 days ago Oct 28, 2026 01:00 UTC |
| 3.0 | 49 km N of Suárez, Puerto Rico | 14 days ago Oct 27, 2026 03:16 UTC |
Learn more
- The Earthquake Magnitude Scale ExplainedRichter versus moment magnitude, what each level feels like, and how often each size occurs.
- Earthquake Depth Explained: Why It MattersShallow, intermediate and deep earthquakes, why depth changes the shaking, and how reliable the number is.
- What to Do Before, During and After an EarthquakeDrop, Cover and Hold On, what to do in a car or near the coast, and how to handle aftershocks.
Magnitudes and locations come from automatic or reviewed solutions and are often revised in the hours after an earthquake. Email alerts are coming soon; join the waiting list.