QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

Earthquake near Carrizales, PR

No earthquake was likely felt in Carrizales in the 24 hours to 10:48 am AST (14:48 UTC). The last one was M 3.4, 43 km (27 mi) NW, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Carrizales

This page: a magnitude 3.1 earthquake was recorded 4 km (3 mi) north of Carrizales, PR, at 10:24 pm AST on 25 November 2022 (02:24 UTC), 15 km deep. 1 person has reported feeling it to USGS.

USGS: 4 km N of Carrizales, Puerto Rico

10 km (6 mi) NW of Arecibo, PR · 78 km (49 mi) W of San Juan, PR

10:24 pm AST, Nov 25, 2022 · · 15 km deep · released about 1,600 lb of TNT

Every earthquake near Carrizales Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 9 kmCamuy Municipio 11 kmQuebradillas Municipio 15 kmArecibo Municipio 16 kmIsabela Municipio 23 kmBarceloneta Municipio 26 kmSan Sebastián Municipio 28 kmLares Municipio 28 kmUtuado Municipio 30 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
10:24 pm AST on 25 November 2022 ()
Where
4 km (3 mi) north of Carrizales, PR · earthquakes near Carrizales
Magnitude
M 3.1 (md)
Depth
15 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Hatillo Municipio, 9 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1446 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 42 km (26 mi) from the epicentre. In Carrizales, 4 km away, the estimate is intensity III (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: Hatillo 5 km, intensity III · Arecibo 10 km, intensity III · Quebradillas 16 km, intensity II · Isabela 24 km, intensity II · Lares 27 km, intensity II · Barceloneta 28 km, intensity II · San Sebastián 29 km, intensity II · Rafael Hernandez 30 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,600 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 210,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 9,400× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,700× the energy of this one
  4. This earthquake M 3.1 about 1,600 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.7× 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 8 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.1 24 km NNW of San Antonio, Puerto Rico · 46 km WNW of this epicentre
  2. 6.3 6 km WNW of Aguadilla, Puerto Rico · 45 km WSW of this epicentre
  3. 6.1 15 km WNW of San Antonio, Puerto Rico · 46 km W of this epicentre
  4. 6.1 18 km NNW of San Antonio, Puerto Rico · 43 km WNW of this epicentre
  5. 5.8 12 km N of Garrochales, Puerto Rico · 25 km E 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 18.5215, -66.7948. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hatillo Municipio, PR 9 km (6 mi) S earthquakes near Hatillo Municipio
Camuy Municipio, PR 11 km (7 mi) SW earthquakes near Camuy Municipio
Quebradillas Municipio, PR 15 km (9 mi) WSW earthquakes near Quebradillas Municipio
Arecibo Municipio, PR 16 km (10 mi) SE earthquakes near Arecibo Municipio
Isabela Municipio, PR 23 km (15 mi) W earthquakes near Isabela Municipio
Barceloneta Municipio, PR 26 km (16 mi) ESE earthquakes near Barceloneta Municipio

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

Aftershocks so far

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

  1. 2.2 6 km N of San Germán, Puerto Rico
  2. 1.9 Puerto Rico region
  3. 3.1 2 km WSW of Maricao, Puerto Rico
  4. 2.6 20 km N of Tierras Nuevas Poniente, Puerto Rico
  5. 3.5 8 km NW of Camuy, Puerto Rico
  6. 2.5 7 km ENE of Hormigueros, Puerto Rico
  7. 2.2 6 km NNW of Jayuya, Puerto Rico
  8. 3.0 2 km ENE of Mayagüez, Puerto Rico
  9. 2.8 14 km N of Hatillo, Puerto Rico
  10. 2.3 4 km WNW of Santo Domingo, Puerto Rico
  11. 4.2 15 km N of Isabela, Puerto Rico
  12. 2.9 1 km ENE of Mayag?ez, Puerto Rico
  13. 2.0 Puerto Rico region
  14. 2.8 19 km NNE of Arecibo, Puerto Rico
  15. 2.9 4 km N of Animas, 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.