QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Parcelas La Milagrosa, PR

No earthquake was likely felt in Parcelas La Milagrosa in the 24 hours to 12:55 pm AST (16:55 UTC). The last one was M 3.3, 41 km (26 mi) SW, at 8:40 am AST on 1 November 2026, estimated intensity II (weak) in town. Every earthquake near Parcelas La Milagrosa

This page: a magnitude 2.1 earthquake was recorded in Parcelas La Milagrosa, PR, at 1:15 am AST on 7 January 2025 (05:15 UTC), 18 km deep.

USGS: 1 km ESE of Parcelas La Milagrosa, Puerto Rico

29 km (18 mi) SSW of San Juan, PR · 16 km (10 mi) WSW of Caguas, PR

1:15 am AST, Jan 7, 2025 · · 18 km deep · released about 44 lb of TNT

Every earthquake near Parcelas La Milagrosa Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cidra Municipio 2 kmCayey Municipio 7 kmComerío Municipio 8 kmAibonito Municipio 10 kmAguas Buenas Municipio 11 kmCaguas Municipio 14 kmBarranquitas Municipio 15 kmNaranjito Municipio 16 kmCoamo Municipio 20 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
1:15 am AST on 7 January 2025 ()
Where
in Parcelas La Milagrosa, PR · earthquakes near Parcelas La Milagrosa
Magnitude
M 2.1 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Cidra Municipio, 2 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 673 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. 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: Cidra, Parcelas Nuevas, Cayey, Santa Clara, Sumidero, Comerío.

How big was it?

This earthquake released about 44 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 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 5,400 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 · 12 km NNE of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 42 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 18.1628, -66.1745. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Cidra Municipio, PR 2 km (1 mi) NE earthquakes near Cidra Municipio
Cayey Municipio, PR 7 km (4 mi) SSE earthquakes near Cayey Municipio
Comerío Municipio, PR 8 km (5 mi) NW earthquakes near Comerío Municipio
Aibonito Municipio, PR 10 km (6 mi) WSW earthquakes near Aibonito Municipio
Aguas Buenas Municipio, PR 11 km (7 mi) NNE earthquakes near Aguas Buenas Municipio
Caguas Municipio, PR 14 km (9 mi) ENE earthquakes near Caguas Municipio

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

Aftershocks so far

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

  1. 3.1 2 km NW of Hato Candal, Puerto Rico
  2. 3.0 3 km NW of H. Rivera Colon, Puerto Rico
  3. 3.4 2 km N of Pueblito del Rio, Puerto Rico
  4. 2.4 1 km ESE of Coto Laurel, Puerto Rico
  5. 2.9 9 km NNW of Brenas, Puerto Rico
  6. 1.6 2 km S of G. L. Garcia, Puerto Rico
  7. 2.2 1 km W of Naranjito, Puerto Rico
  8. 2.2 3 km ESE of G. L. Garcia, Puerto Rico
  9. 2.9 2 km NW of Orocovis, Puerto Rico
  10. 2.1 3 km WNW of Guayabal, Puerto Rico
  11. 2.4 4 km SW of Las Piedras, Puerto Rico
  12. 2.0 3 km W of Orocovis, Puerto Rico
  13. 2.2 4 km SSW of Las Piedras, Puerto Rico
  14. 2.1 4 km SSW of Las Piedras, Puerto Rico
  15. 2.6 3 km SSW of Las Piedras, 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.