Earthquake · reviewed by a seismologist
M 2.8md
Earthquake near Garrochales, PR
Yes. A magnitude 2.8 earthquake was recorded 10 km (6 mi) north-northwest of Garrochales, PR, at 6:12 am AST on 11 November 2026 (10:12 UTC), 87 km deep. No felt reports to USGS yet.
USGS: 9 km NNW of Garrochales, Puerto Rico
58 km (36 mi) WNW of San Juan, PR · 18 km (11 mi) ENE of Arecibo, PR
- When
- 6:12 am AST on 11 November 2026 ()
- Where
- 10 km (6 mi) north-northwest of Garrochales, PR · earthquakes near Garrochales
- Magnitude
- M 2.8 (md)
- Depth
- 87 km below the surface
- Felt
- no reports yet
- Nearest
- Barceloneta Municipio, 8 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 4 hours ago
Earthquake alerts for Garrochales, PR
Get a notification in this browser when USGS records an earthquake near Garrochales, PR. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Garrochales, 10 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Earthquakes near other towns within 30 km: Animas, Barceloneta, Sabana Hoyos, Imbery, La Luisa, Bufalo.
How big was it?
This earthquake released about 420 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 36,000× the energy of this one
- Magna, Utah 2020 M 5.7 26,000× the energy of this one
- Around the size people start to feel M 3.0 2.3× the energy of this one
- This earthquake M 2.8 about 420 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km since 2016 was M 4.4 on 2018-12-09 — about 290 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 5.8 12 km N of Garrochales, Puerto Rico · 4 km NE of this epicentre
- 5.0 3 km N of Brenas, Puerto Rico · 27 km E of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 18.5388, -66.5932. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Barceloneta Municipio, PR | 8 km (5 mi) | SSE | earthquakes near Barceloneta Municipio |
| Arecibo Municipio, PR | 15 km (9 mi) | SW | earthquakes near Arecibo Municipio |
| Manatí Municipio, PR | 15 km (9 mi) | SE | earthquakes near Manatí Municipio |
| Florida Municipio, PR | 19 km (12 mi) | S | earthquakes near Florida Municipio |
| Vega Baja Municipio, PR | 23 km (14 mi) | ESE | earthquakes near Vega Baja Municipio |
| Hatillo Municipio, PR | 24 km (15 mi) | WSW | earthquakes near Hatillo Municipio |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
No further earthquakes have been recorded within 50 km since this one.
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.