QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Parcelas Nuevas, PR

No earthquake was likely felt in Parcelas Nuevas in the 24 hours to 2:31 pm AST (18:31 UTC). The last one was M 3.3, 40 km (25 mi) SW, at 8:40 am AST on 1 November 2026, estimated intensity II (weak) in town. Every earthquake near Parcelas Nuevas

This page: a magnitude 2.5 earthquake was recorded 2 km (1 mi) west-northwest of Parcelas Nuevas, PR, at 2:10 am AST on 25 May 2017 (06:10 UTC), 13 km deep.

USGS: 2 km WNW of Parcelas Nuevas, Puerto Rico

32 km (20 mi) SSW of San Juan, PR · 19 km (12 mi) WSW of Caguas, PR

2:10 am AST, May 25, 2017 · · 13 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Cidra Municipio 5 kmCayey Municipio 6 kmAibonito Municipio 8 kmComerío Municipio 9 kmBarranquitas Municipio 14 kmAguas Buenas Municipio 14 kmCaguas Municipio 17 kmNaranjito Municipio 17 kmCoamo Municipio 18 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
2:10 am AST on 25 May 2017 ()
Where
2 km (1 mi) west-northwest of Parcelas Nuevas, PR · earthquakes near Parcelas Nuevas
Magnitude
M 2.5 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Cidra Municipio, 5 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3456 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. In Parcelas Nuevas, 2 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.

Likely felt in: Cayey 5 km, intensity II · Sumidero 11 km, intensity II · Caguas 18 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 1,400 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 · 14 km NNE of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 43 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 18.1450, -66.1930. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Cidra Municipio, PR 5 km (3 mi) NE earthquakes near Cidra Municipio
Cayey Municipio, PR 6 km (4 mi) SE earthquakes near Cayey Municipio
Aibonito Municipio, PR 8 km (5 mi) WSW earthquakes near Aibonito Municipio
Comerío Municipio, PR 9 km (6 mi) NNW earthquakes near Comerío Municipio
Barranquitas Municipio, PR 14 km (9 mi) WNW earthquakes near Barranquitas Municipio
Aguas Buenas Municipio, PR 14 km (9 mi) NNE earthquakes near Aguas Buenas Municipio

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

Aftershocks so far

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

  1. 3.0 0 km ENE of Río Cañas Abajo, Puerto Rico
  2. 2.6 1 km N of Pueblito del Rio, Puerto Rico
  3. 2.5 1 km ENE of Salinas, Puerto Rico
  4. 2.3 10 km S of Emajagua, Puerto Rico
  5. 2.8 3 km N of San Juan, Puerto Rico
  6. 2.1 4 km SSE of Cayey, Puerto Rico
  7. 2.1 11 km S of Santa Isabel, Puerto Rico
  8. 2.6 13 km S of Santa Isabel, Puerto Rico
  9. 3.1 1 km NW of Bayamón, Puerto Rico
  10. 2.3 1 km S of Río Lajas, Puerto Rico
  11. 3.1 5 km ESE of Cataño, Puerto Rico
  12. 2.9 3 km N of Trujillo Alto, Puerto Rico
  13. 2.4 11 km S of Emajagua, Puerto Rico
  14. 2.1 9 km ESE of Adjuntas, Puerto Rico
  15. 2.2 9 km S of Emajagua, 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.