QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Villalba, PR

No earthquake was likely felt in Villalba in the 24 hours to 10:15 am AST (14:15 UTC). The last one was M 3.0, 33 km (20 mi) SSE, at 7:09 pm AST on 5 November 2026, estimated intensity II (weak) in town. Every earthquake near Villalba

This page: a magnitude 2.4 earthquake was recorded 6 km (4 mi) east-southeast of Villalba, PR, at 8:46 pm AST on 27 July 2022 (00:46 UTC), 18 km deep.

USGS: 6 km ESE of Villalba, Puerto Rico

51 km (31 mi) SW of San Juan, PR · 24 km (15 mi) ENE of Ponce, PR

8:46 pm AST, Jul 27, 2022 · · 18 km deep · released about 100 lb of TNT

Every earthquake near Villalba Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Villalba Municipio 4 kmCoamo Municipio 8 kmOrocovis Municipio 11 kmJuana Díaz Municipio 14 kmBarranquitas Municipio 16 kmAibonito Municipio 18 kmSanta Isabel Municipio 19 kmJayuya Municipio 19 kmCiales Municipio 22 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
8:46 pm AST on 27 July 2022 ()
Where
6 km (4 mi) east-southeast of Villalba, PR · earthquakes near Villalba
Magnitude
M 2.4 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Villalba Municipio, 4 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1568 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 9 km (6 mi) from the epicentre. In Villalba, 6 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: Coamo 9 km, intensity II · Río Cañas Abajo 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 100 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 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 100,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.1× the energy of this one
  4. This earthquake M 2.4 about 100 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 6.4 on 2020-01-07 — about 1,100,000 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 · 35 km ENE of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 44 km NNE 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 18.1158, -66.4347. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Villalba Municipio, PR 4 km (3 mi) WNW earthquakes near Villalba Municipio
Coamo Municipio, PR 8 km (5 mi) E earthquakes near Coamo Municipio
Orocovis Municipio, PR 11 km (7 mi) N earthquakes near Orocovis Municipio
Juana Díaz Municipio, PR 14 km (9 mi) SSW earthquakes near Juana Díaz Municipio
Barranquitas Municipio, PR 16 km (10 mi) NE earthquakes near Barranquitas Municipio
Aibonito Municipio, PR 18 km (11 mi) E earthquakes near Aibonito 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. 2.3 12 km E of Maricao, Puerto Rico
  2. 2.3 1 km S of Capitanejo, Puerto Rico
  3. 2.9 11 km SSE of Maria Antonia, Puerto Rico
  4. 2.1 8 km SSW of Indios, Puerto Rico
  5. 2.0 3 km WSW of Indios, Puerto Rico
  6. 2.5 1 km SW of Tallaboa, Puerto Rico
  7. 1.5 3 km SE of Tallaboa, Puerto Rico
  8. 2.4 4 km SE of Tallaboa, Puerto Rico
  9. 2.0 1 km N of Magas Arriba, Puerto Rico
  10. 2.4 1 km ESE of Tallaboa, Puerto Rico
  11. 1.6 3 km SE of Tallaboa, Puerto Rico
  12. 2.0 1 km NE of Maria Antonia, Puerto Rico
  13. 2.5 4 km S of Indios, Puerto Rico
  14. 1.9 2 km WNW of Indios, Puerto Rico
  15. 2.4 16 km SSW of Tallaboa, 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.