Earthquake · reviewed by a seismologist
M 1.7md
Earthquake near Pastos, PR
No earthquake was likely felt in Pastos in the 24 hours to 11:04 am AST (15:04 UTC). The last one was M 3.3, 32 km (20 mi) SSW, at 8:40 am AST on 1 November 2026, estimated intensity II (weak) in town. Every earthquake near Pastos
This page: a magnitude 1.7 earthquake was recorded 2 km (1 mi) south of Pastos, PR, at 3:18 pm AST on 11 November 2026 (19:18 UTC), 55 km deep.
USGS: 2 km S of Pastos, Puerto Rico
40 km (25 mi) SSW of San Juan, PR · 27 km (17 mi) WSW of Caguas, PR
- When
- 3:18 pm AST on 11 November 2026 ()
- Where
- 2 km (1 mi) south of Pastos, PR · earthquakes near Pastos
- Magnitude
- M 1.7 (md)
- Depth
- 55 km below the surface
- Felt
- no reports yet
- Nearest
- Aibonito Municipio, 4 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2 days ago
Earthquake alerts for Pastos, PR
Get a notification in this browser when USGS records an earthquake near Pastos, 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 minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Pastos, 2 km away, the estimate is intensity I (not felt). 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: Vázquez, Aibonito, La Plena, Cayey, Coco, Parcelas Nuevas.
How big was it?
This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
- Around the size people start to feel M 3.0 89× the energy of this one
- This earthquake M 1.7 about 11 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 5.0 on 2020-01-07 — about 89,000 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 5.1 3 km W of Aguas Buenas, Puerto Rico · 22 km NE of this epicentre
- 5.0 3 km N of Brenas, Puerto Rico · 46 km NNW 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 18.0965, -66.2548. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Aibonito Municipio, PR | 4 km (2 mi) | NNW | earthquakes near Aibonito Municipio |
| Coamo Municipio, PR | 11 km (7 mi) | W | earthquakes near Coamo Municipio |
| Cayey Municipio, PR | 11 km (7 mi) | E | earthquakes near Cayey Municipio |
| Barranquitas Municipio, PR | 13 km (8 mi) | NNW | earthquakes near Barranquitas Municipio |
| Cidra Municipio, PR | 13 km (8 mi) | NE | earthquakes near Cidra Municipio |
| Salinas Municipio, PR | 14 km (9 mi) | S | earthquakes near Salinas 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.