QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Río Cañas Abajo, PR

No earthquake was likely felt in Río Cañas Abajo in the 24 hours to 6:48 pm AST (22:48 UTC). The last one was M 3.0, 22 km (14 mi) SSE, at 7:09 pm AST on 5 November 2026, estimated intensity II (weak) in town. Every earthquake near Río Cañas Abajo

This page: a magnitude 2.1 earthquake was recorded in Río Cañas Abajo, PR, at 8:55 pm AST on 5 July 2019 (00:55 UTC), 15 km deep.

USGS: 1 km WSW of Río Cañas Abajo, Puerto Rico

15 km (9 mi) ENE of Ponce, PR

8:55 pm AST, Jul 5, 2019 · · 15 km deep · released about 40 lb of TNT

Every earthquake near Río Cañas Abajo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Juana Díaz Municipio 4 kmVillalba Municipio 11 kmPonce Municipio 13 kmSanta Isabel Municipio 14 kmCoamo Municipio 16 kmOrocovis Municipio 21 kmJayuya Municipio 22 kmSalinas Municipio 25 kmAibonito Municipio 26 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
8:55 pm AST on 5 July 2019 ()
Where
in Río Cañas Abajo, PR · earthquakes near Río Cañas Abajo
Magnitude
M 2.1 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Juana Díaz Municipio, 4 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2686 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 8 km (5 mi) from the epicentre. 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: Río Cañas Abajo in town, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 40 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 6,000 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 · 45 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 18.0338, -66.4850. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Juana Díaz Municipio, PR 4 km (3 mi) S earthquakes near Juana Díaz Municipio
Villalba Municipio, PR 11 km (7 mi) N earthquakes near Villalba Municipio
Ponce Municipio, PR 13 km (8 mi) WSW earthquakes near Ponce Municipio
Santa Isabel Municipio, PR 14 km (8 mi) SE earthquakes near Santa Isabel Municipio
Coamo Municipio, PR 16 km (10 mi) ENE earthquakes near Coamo Municipio
Orocovis Municipio, PR 21 km (13 mi) NNE earthquakes near Orocovis Municipio

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

Aftershocks so far

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

  1. 2.8 12 km S of Salinas, Puerto Rico
  2. 2.4 11 km S of Salinas, Puerto Rico
  3. 1.9 6 km NW of Adjuntas, Puerto Rico
  4. 1.8 5 km SSW of Guánica, Puerto Rico
  5. 1.9 7 km S of Ponce, Puerto Rico
  6. 2.3 12 km SSW of Tallaboa, Puerto Rico
  7. 1.7 2 km SSW of H. Rivera Colon, Puerto Rico
  8. 2.0 2 km SSW of Adjuntas, Puerto Rico
  9. 1.8 8 km S of Potala Pastillo, Puerto Rico
  10. 1.5 10 km SSE of Ponce, Puerto Rico
  11. 2.1 2 km NW of Galateo, Puerto Rico
  12. 1.5 13 km SSE of Ponce, Puerto Rico
  13. 1.6 12 km SSE of Ponce, Puerto Rico
  14. 1.7 1 km NE of Liborio Negron Torres, Puerto Rico
  15. 1.9 5 km WNW of Aguas Buenas, 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.