QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near El Ojo, PR

No earthquake was likely felt in El Ojo in the 24 hours to 10:13 am AST (14:13 UTC). The last one was M 2.2, 5 km (3 mi) ENE, at 5:05 pm AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near El Ojo

This page: a magnitude 2.5 earthquake was recorded 2 km (1 mi) north-northeast of El Ojo, PR, at 7:28 pm AST on 25 October 2019 (23:28 UTC), 11 km deep.

USGS: 2 km NNE of El Ojo, Puerto Rico

54 km (34 mi) SW of San Juan, PR · 26 km (16 mi) E of Ponce, PR

7:28 pm AST, Oct 25, 2019 · · 11 km deep · released about 180 lb of TNT

Every earthquake near El Ojo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Isabel Municipio 8 kmCoamo Municipio 10 kmJuana Díaz Municipio 12 kmSalinas Municipio 14 kmVillalba Municipio 16 kmAibonito Municipio 17 kmBarranquitas Municipio 21 kmOrocovis Municipio 23 kmPonce Municipio 24 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
7:28 pm AST on 25 October 2019 ()
Where
2 km (1 mi) north-northeast of El Ojo, PR · earthquakes near El Ojo
Magnitude
M 2.5 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Santa Isabel Municipio, 8 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2573 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 20 km (12 mi) from the epicentre. In El Ojo, 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: Santa Isabel 7 km, intensity II · Coamo 7 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 180 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 86,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 61,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.4× the energy of this one
  4. This earthquake M 2.5 about 180 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 2019-03-12 — about 1,400 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 37 km NE 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 18.0205, -66.3808. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Santa Isabel Municipio, PR 8 km (5 mi) S earthquakes near Santa Isabel Municipio
Coamo Municipio, PR 10 km (6 mi) NNE earthquakes near Coamo Municipio
Juana Díaz Municipio, PR 12 km (7 mi) WSW earthquakes near Juana Díaz Municipio
Salinas Municipio, PR 14 km (8 mi) ESE earthquakes near Salinas Municipio
Villalba Municipio, PR 16 km (10 mi) NW earthquakes near Villalba Municipio
Aibonito Municipio, PR 17 km (11 mi) NE earthquakes near Aibonito Municipio

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

Aftershocks so far

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

  1. 2.2 12 km SSW of Potala Pastillo, Puerto Rico
  2. 1.9 12 km SSE of Ponce, Puerto Rico
  3. 2.8 37 km SSE of Tallaboa, Puerto Rico
  4. 2.1 12 km SSE of Ponce, Puerto Rico
  5. 2.3 9 km SSW of Potala Pastillo, Puerto Rico
  6. 1.8 13 km S of Ponce, Puerto Rico
  7. 1.8 1 km S of Guayanilla, Puerto Rico
  8. 2.1 0 km NNW of Mariano Colón, Puerto Rico
  9. 2.6 3 km SE of Jayuya, Puerto Rico
  10. 2.3 10 km SW of Central Aguirre, Puerto Rico
  11. 2.3 8 km SE of Jobos, Puerto Rico
  12. 1.8 Puerto Rico region
  13. 2.6 8 km SE of Jobos, Puerto Rico
  14. 1.6 3 km NNE of Ponce, Puerto Rico
  15. 2.3 2 km SSW of Las Ochenta, 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.