QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Pastos, PR

No earthquake was likely felt in Pastos in the 24 hours to 4:41 pm AST (20:41 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 2.1 earthquake was recorded 4 km (2 mi) east of Pastos, PR, at 6:45 am AST on 1 June 2024 (10:45 UTC), 22 km deep.

USGS: 3 km E of Pastos, Puerto Rico

36 km (22 mi) SSW of San Juan, PR · 23 km (14 mi) WSW of Caguas, PR

6:45 am AST, Jun 1, 2024 · · 22 km deep · released about 51 lb of TNT

Every earthquake near Pastos Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aibonito Municipio 5 kmCayey Municipio 8 kmCidra Municipio 9 kmComerío Municipio 12 kmBarranquitas Municipio 13 kmCoamo Municipio 15 kmSalinas Municipio 17 kmAguas Buenas Municipio 18 kmGuayama Municipio 19 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
6:45 am AST on 1 June 2024 ()
Where
4 km (2 mi) east of Pastos, PR · earthquakes near Pastos
Magnitude
M 2.1 (md)
Depth
22 km below the surface
Felt
no reports yet
Nearest
Aibonito Municipio, 5 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 893 days ago

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, 4 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: Aibonito, Parcelas Nuevas, Cayey, Vázquez, Parcelas La Milagrosa, La Plena.

How big was it?

This earthquake released about 51 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 210,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 51 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 4.6 on 2016-12-05 — about 4,700 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 18 km NNE of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 44 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 18.1207, -66.2215. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Aibonito Municipio, PR 5 km (3 mi) WNW earthquakes near Aibonito Municipio
Cayey Municipio, PR 8 km (5 mi) ESE earthquakes near Cayey Municipio
Cidra Municipio, PR 9 km (5 mi) NE earthquakes near Cidra Municipio
Comerío Municipio, PR 12 km (7 mi) N earthquakes near Comerío Municipio
Barranquitas Municipio, PR 13 km (8 mi) NW earthquakes near Barranquitas Municipio
Coamo Municipio, PR 15 km (9 mi) W earthquakes near Coamo Municipio

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

38 earthquakes have been recorded within 50 km since this one.

  1. 3.0 6 km SSE of Bajandas, Puerto Rico
  2. 3.4 1 km S of Canovanas, Puerto Rico
  3. 2.3 1 km W of Orocovis, Puerto Rico
  4. 2.9 4 km NW of Orocovis, Puerto Rico
  5. 3.1 6 km NNW of Yaurel, Puerto Rico
  6. 2.7 3 km WNW of Orocovis, Puerto Rico
  7. 2.5 4 km NW of Orocovis, Puerto Rico
  8. 2.6 3 km SSW of Capitanejo, Puerto Rico
  9. 2.3 1 km W of Capitanejo, Puerto Rico
  10. 2.7 11 km SE of Emajagua, Puerto Rico
  11. 2.6 3 km NW of Orocovis, Puerto Rico
  12. 2.1 3 km SSW of Potala Pastillo, Puerto Rico
  13. 3.1 8 km SSW of Ponce, Puerto Rico
  14. 2.0 6 km W of Orocovis, Puerto Rico
  15. 2.5 3 km SW of G. L. Garcia, Puerto Rico

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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.