QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Aibonito, PR

No earthquake was likely felt in Aibonito in the 24 hours to 12:51 am AST (04:51 UTC). The last one was M 3.3, 34 km (21 mi) SSW, at 8:40 am AST on 1 November 2026, estimated intensity II (weak) in town. Every earthquake near Aibonito

This page: a magnitude 2.4 earthquake was recorded 5 km (3 mi) north-northeast of Aibonito, PR, at 11:44 pm AST on 25 May 2022 (03:44 UTC), 9.9 km deep.

USGS: 4 km NNE of Aibonito, Puerto Rico

32 km (20 mi) SW of San Juan, PR · 23 km (14 mi) WSW of Caguas, PR

11:44 pm AST, May 25, 2022 · · 9.9 km deep · released about 120 lb of TNT

Every earthquake near Aibonito Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aibonito Municipio 6 kmComerío Municipio 6 kmBarranquitas Municipio 7 kmCidra Municipio 9 kmNaranjito Municipio 13 kmCayey Municipio 13 kmCoamo Municipio 14 kmAguas Buenas Municipio 15 kmCorozal Municipio 17 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
11:44 pm AST on 25 May 2022 ()
Where
5 km (3 mi) north-northeast of Aibonito, PR · earthquakes near Aibonito
Magnitude
M 2.4 (md)
Depth
9.9 km below the surface
Felt
no reports yet
Nearest
Aibonito Municipio, 6 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1631 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 19 km (12 mi) from the epicentre. In Aibonito, 5 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 11 km, intensity II · Sumidero 13 km, intensity II · Coamo 16 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 2,000 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 · 15 km NE of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 37 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 18.1767, -66.2442. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Aibonito Municipio, PR 6 km (3 mi) SSW earthquakes near Aibonito Municipio
Comerío Municipio, PR 6 km (4 mi) NNE earthquakes near Comerío Municipio
Barranquitas Municipio, PR 7 km (5 mi) WNW earthquakes near Barranquitas Municipio
Cidra Municipio, PR 9 km (5 mi) E earthquakes near Cidra Municipio
Naranjito Municipio, PR 13 km (8 mi) N earthquakes near Naranjito Municipio
Cayey Municipio, PR 13 km (8 mi) SE earthquakes near Cayey Municipio

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

Aftershocks so far

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

  1. 2.8 7 km NNW of San Juan, Puerto Rico
  2. 2.2 0 km N of Salinas, Puerto Rico
  3. 2.8 3 km ESE of Jobos, Puerto Rico
  4. 2.6 3 km NNW of Coamo, Puerto Rico
  5. 2.9 1 km WNW of Río Lajas, Puerto Rico
  6. 2.2 5 km SSW of Potala Pastillo, Puerto Rico
  7. 3.0 5 km N of Levittown, Puerto Rico
  8. 2.0 Puerto Rico region
  9. 2.7 5 km NW of Orocovis, Puerto Rico
  10. 2.0 5 km NNE of Peñuelas, Puerto Rico
  11. 3.1 1 km NNW of Campanilla, Puerto Rico
  12. 2.0 3 km SSE of Tallaboa Alta, Puerto Rico
  13. 3.1 2 km NW of Cataño, Puerto Rico
  14. 2.1 6 km SSW of Playita Cortada, Puerto Rico
  15. 2.6 5 km ESE of Naranjito, 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.