QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Campanilla, PR

No earthquake was likely felt in Campanilla in the 24 hours to 7:59 pm AST (23:59 UTC). The last one was M 4.8, 92 km (57 mi) SW, at 9:19 am AST on 18 September 2026, estimated intensity III (weak) in town; 86 felt reports to USGS. Every earthquake near Campanilla

This page: a magnitude 2.5 earthquake was recorded in Campanilla, PR, at 1:45 pm AST on 28 April 2018 (17:45 UTC), 57 km deep.

USGS: 1 km WNW of Campanilla, Puerto Rico

11 km (7 mi) WNW of Bayamón, PR

1:45 pm AST, Apr 28, 2018 · · 57 km deep · released about 150 lb of TNT

Every earthquake near Campanilla Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dorado Municipio 6 kmToa Alta Municipio 7 kmToa Baja Municipio 7 kmVega Alta Municipio 9 kmCataño Municipio 11 kmBayamón Municipio 12 kmNaranjito Municipio 15 kmCorozal Municipio 16 kmVega Baja Municipio 16 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
1:45 pm AST on 28 April 2018 ()
Where
in Campanilla, PR · earthquakes near Campanilla
Magnitude
M 2.5 (md)
Depth
57 km below the surface
Felt
no reports yet
Nearest
Dorado Municipio, 6 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3119 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: Toa Baja, San José, Ingenio, Candelaria Arenas, Río Lajas, Dorado.

How big was it?

This earthquake released about 150 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 5.8 100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 72,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.5× the energy of this one
  4. This earthquake M 2.5 about 150 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.8 12 km N of Garrochales, Puerto Rico · 36 km WNW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 22 km SE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 13 km NW 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 18.4256, -66.2516. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Dorado Municipio, PR 6 km (3 mi) NNW earthquakes near Dorado Municipio
Toa Alta Municipio, PR 7 km (4 mi) S earthquakes near Toa Alta Municipio
Toa Baja Municipio, PR 7 km (4 mi) ENE earthquakes near Toa Baja Municipio
Vega Alta Municipio, PR 9 km (6 mi) W earthquakes near Vega Alta Municipio
Cataño Municipio, PR 11 km (7 mi) E earthquakes near Cataño Municipio
Bayamón Municipio, PR 12 km (8 mi) SE earthquakes near Bayamón Municipio

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

Aftershocks so far

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

  1. 2.3 8 km NNE of Jayuya, Puerto Rico
  2. 2.0 6 km NE of Comerío, Puerto Rico
  3. 2.3 2 km SSW of Bayamón, Puerto Rico
  4. 2.5 12 km NNE of Brenas, Puerto Rico
  5. 1.7 3 km ESE of G. L. Garcia, Puerto Rico
  6. 1.9 9 km NNW of Garrochales, Puerto Rico
  7. 2.8 2 km NW of Dorado, Puerto Rico
  8. 2.8 4 km N of Barceloneta, Puerto Rico
  9. 2.6 6 km NE of Comerío, Puerto Rico
  10. 2.5 0 km ENE of San Juan, Puerto Rico
  11. 2.0 1 km E of Parcelas Nuevas, Puerto Rico
  12. 2.2 5 km NNW of Levittown, Puerto Rico
  13. 2.2 3 km NNW of Orocovis, Puerto Rico
  14. 1.7 1 km ESE of Guayabal, Puerto Rico
  15. 1.8 5 km NNW of Yaurel, 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.