QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near Rincón, PR

No earthquake was likely felt in Rincón in the 24 hours to 9:08 am AST (13:08 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 3.0 earthquake was recorded 14 km (9 mi) west-northwest of Rincón, PR, at 5:19 pm AST on 12 August 2022 (21:19 UTC), 13 km deep. 1 person has reported feeling it to USGS.

USGS: 14 km WNW of Rincón, Puerto Rico

32 km (20 mi) NW of Mayagüez, PR · 138 km (86 mi) W of San Juan, PR

5:19 pm AST, Aug 12, 2022 · · 13 km deep · released about 890 lb of TNT

Every earthquake near Rincón Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 14 kmAguada Municipio 20 kmAguadilla Municipio 26 kmAñasco Municipio 28 kmMoca Municipio 31 kmIsabela Municipio 39 kmHormigueros Municipio 40 kmSan Sebastián Municipio 43 kmLas Marías Municipio 45 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
5:19 pm AST on 12 August 2022 ()
Where
14 km (9 mi) west-northwest of Rincón, PR · earthquakes near Rincón
Magnitude
M 3.0 (md)
Depth
13 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Rincón Municipio, 14 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1551 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 33 km (21 mi) from the epicentre. In Rincón, 14 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: Rincón 14 km, intensity II · Aguada 19 km, intensity II · Aguadilla 23 km, intensity II · Rafael Hernandez 32 km, intensity II · Mayagüez 33 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 890 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 380,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 17,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 890 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 4.4 on 2017-10-01 — about 130 times the energy of this one.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.1 24 km NNW of San Antonio, Puerto Rico · 39 km NNE of this epicentre
  2. 6.4 32 km NW of Aguadilla, Puerto Rico · 24 km N of this epicentre
  3. 6.3 6 km WNW of Aguadilla, Puerto Rico · 17 km ENE of this epicentre
  4. 6.1 15 km WNW of San Antonio, Puerto Rico · 23 km NE of this epicentre
  5. 6.1 18 km NNW of San Antonio, Puerto Rico · 33 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 18.3967, -67.3700. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rincón Municipio, PR 14 km (9 mi) ESE earthquakes near Rincón Municipio
Aguada Municipio, PR 20 km (12 mi) E earthquakes near Aguada Municipio
Aguadilla Municipio, PR 26 km (16 mi) ENE earthquakes near Aguadilla Municipio
Añasco Municipio, PR 28 km (17 mi) ESE earthquakes near Añasco Municipio
Moca Municipio, PR 31 km (19 mi) E earthquakes near Moca Municipio
Isabela Municipio, PR 39 km (24 mi) ENE earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 2.8 5 km SW of Mayagüez, Puerto Rico
  2. 3.5 42 km NNW of San Antonio, Puerto Rico
  3. 2.9 16 km NNW of San Antonio, Puerto Rico
  4. 3.1 40 km NNW of San Antonio, Puerto Rico
  5. 3.3 53 km WSW of Stella, Puerto Rico
  6. 2.5 6 km ENE of Hormigueros, 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.