QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near Carrizales, PR

No earthquake was likely felt in Carrizales in the 24 hours to 5:30 pm AST (21:30 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 3.0 earthquake was recorded 4 km (3 mi) north of Carrizales, PR, at 11:29 pm AST on 29 June 2017 (03:29 UTC), 114 km deep.

USGS: 4 km N of Carrizales, Puerto Rico

9 km (6 mi) NW of Arecibo, PR · 77 km (48 mi) W of San Juan, PR

11:29 pm AST, Jun 29, 2017 · · 114 km deep · released about 830 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 kmArecibo Municipio 15 kmQuebradillas Municipio 16 kmIsabela Municipio 24 kmBarceloneta Municipio 25 kmLares Municipio 28 kmSan Sebastián Municipio 28 kmUtuado Municipio 29 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
11:29 pm AST on 29 June 2017 ()
Where
4 km (3 mi) north of Carrizales, PR · earthquakes near Carrizales
Magnitude
M 3.0 (md)
Depth
114 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 9 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3333 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 Carrizales, 4 km away, the estimate is intensity I (not felt). 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: Hatillo, Corcovado, Camuy, Arecibo, Rafael Gonzalez, Rafael Capo.

How big was it?

This earthquake released about 830 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 6.7 410,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 13,000× the energy of this one
  4. This earthquake M 3.0 about 830 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

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 · 47 km WNW of this epicentre
  2. 6.3 6 km WNW of Aguadilla, Puerto Rico · 46 km W of this epicentre
  3. 6.1 15 km WNW of San Antonio, Puerto Rico · 47 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 · 24 km ENE 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 18.5180, -66.7873. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hatillo Municipio, PR 9 km (5 mi) S earthquakes near Hatillo Municipio
Camuy Municipio, PR 11 km (7 mi) SW earthquakes near Camuy Municipio
Arecibo Municipio, PR 15 km (9 mi) SE earthquakes near Arecibo Municipio
Quebradillas Municipio, PR 16 km (10 mi) WSW earthquakes near Quebradillas Municipio
Isabela Municipio, PR 24 km (15 mi) W earthquakes near Isabela Municipio
Barceloneta Municipio, PR 25 km (15 mi) ESE earthquakes near Barceloneta Municipio

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

Aftershocks so far

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

  1. 2.1 4 km E of Espino, Puerto Rico
  2. 2.6 14 km N of Quebradillas, Puerto Rico
  3. 2.9 2 km NNE of Franquez, Puerto Rico
  4. 2.1 6 km ESE of Maricao, Puerto Rico
  5. 2.9 5 km N of Carrizales, Puerto Rico
  6. 2.8 7 km N of Tierras Nuevas Poniente, Puerto Rico
  7. 2.7 12 km NNE of Arecibo, Puerto Rico
  8. 2.4 3 km NE of Mayagüez, Puerto Rico
  9. 1.8 6 km NNW of Sabana Grande, Puerto Rico
  10. 2.7 6 km N of Santo Domingo, Puerto Rico
  11. 1.9 9 km ESE of Maricao, Puerto Rico
  12. 1.7 7 km N of Yauco, Puerto Rico
  13. 1.6 6 km NNE of Lluveras, Puerto Rico
  14. 1.6 6 km SSW of Maricao, Puerto Rico
  15. 2.6 4 km SW of Maricao, 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.