QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

Earthquake near Rincón, PR

No earthquake was likely felt in Rincón in the 24 hours to 11:26 am AST (15:26 UTC). The last one was M 3.4, 53 km (33 mi) NNE, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Rincón

This page: a magnitude 3.1 earthquake was recorded 22 km (14 mi) west of Rincón, PR, at 8:10 pm AST on 18 July 2024 (00:10 UTC), 83 km deep.

USGS: 22 km W of Rincón, Puerto Rico

35 km (22 mi) WNW of Mayagüez, PR · 147 km (92 mi) W of San Juan, PR

8:10 pm AST, Jul 18, 2024 · · 83 km deep · released about 1,400 lb of TNT

Every earthquake near Rincón Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 22 kmAguada Municipio 29 kmAñasco Municipio 34 kmAguadilla Municipio 38 kmMoca Municipio 40 kmHormigueros Municipio 41 kmCabo Rojo Municipio 46 kmSan Germán Municipio 50 kmIsabela Municipio 50 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
8:10 pm AST on 18 July 2024 ()
Where
22 km (14 mi) west of Rincón, PR · earthquakes near Rincón
Magnitude
M 3.1 (md)
Depth
83 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 22 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 846 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 it was probably too small to be felt, even directly above it. In Rincón, 22 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.

Earthquakes near other towns within 30 km: Stella, La Playa, Aguada.

How big was it?

This earthquake released about 1,400 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 240,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,700× the energy of this one
  4. This earthquake M 3.1 about 1,400 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.5× more

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 4.4 on 2017-10-01 — about 86 times the energy of this one.

Before 2016, the USGS record lists 9 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 32 km NW of Aguadilla, Puerto Rico · 35 km NNE of this epicentre
  2. 6.3 6 km WNW of Aguadilla, Puerto Rico · 29 km ENE of this epicentre
  3. 6.3 58 km E of Punta Cana, Dominican Republic · 47 km WNW of this epicentre
  4. 6.1 15 km WNW of San Antonio, Puerto Rico · 36 km NE of this epicentre
  5. 6.1 18 km NNW of San Antonio, Puerto Rico · 46 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 18.3117, -67.4565. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rincón Municipio, PR 22 km (14 mi) E earthquakes near Rincón Municipio
Aguada Municipio, PR 29 km (18 mi) ENE earthquakes near Aguada Municipio
Añasco Municipio, PR 34 km (21 mi) E earthquakes near Añasco Municipio
Aguadilla Municipio, PR 38 km (24 mi) ENE earthquakes near Aguadilla Municipio
Moca Municipio, PR 40 km (25 mi) E earthquakes near Moca Municipio
Hormigueros Municipio, PR 41 km (25 mi) ESE earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 3.1 27 km NW of San Antonio, Puerto Rico
  2. 3.2 30 km W of Rincón, Puerto Rico
  3. 2.3 21 km WNW of Rincón, Puerto Rico
  4. 2.8 3 km NW of Mayagüez, Puerto Rico
  5. 2.1 2 km ESE of Puerto Real, Puerto Rico
  6. 2.3 7 km ESE of Mayagüez, Puerto Rico
  7. 2.8 3 km WNW of Mayagüez, Puerto Rico
  8. 3.2 37 km WNW of Rincón, Puerto Rico
  9. 2.9 19 km SW of Stella, Puerto Rico
  10. 3.0 29 km WSW of Stella, Puerto Rico
  11. 3.4 19 km WNW of Rincón, 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.