QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

1 km NE of Hatillo, Puerto Rico

· 116 km deep · released about 1,900 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 6 kmCamuy Municipio 7 kmQuebradillas Municipio 12 kmArecibo Municipio 17 kmIsabela Municipio 21 kmSan Sebastián Municipio 24 kmLares Municipio 25 kmBarceloneta Municipio 28 kmUtuado Municipio 28 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
Magnitude
M 3.2 (md)
Depth
116 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 6 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1192 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 1,900 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 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× 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.

Where

Epicentre 18.4942, -66.8193. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 6 km (4 mi) NNW of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 7 km (4 mi) NE of here earthquakes near Camuy Municipio
Quebradillas Municipio, PR 12 km (7 mi) ENE of here earthquakes near Quebradillas Municipio
Arecibo Municipio, PR 17 km (10 mi) WNW of here earthquakes near Arecibo Municipio
Isabela Municipio, PR 21 km (13 mi) E of here earthquakes near Isabela Municipio
San Sebastián Municipio, PR 24 km (15 mi) NE of here earthquakes near San Sebastián 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. 2.4 14 km NW of Aguada, Puerto Rico
  2. 2.4 3 km WNW of Santo Domingo, Puerto Rico
  3. 2.2 8 km WSW of Adjuntas, Puerto Rico
  4. 2.3 5 km NNE of Lluveras, Puerto Rico
  5. 2.5 3 km NNW of Quebradillas, Puerto Rico
  6. 2.5 5 km NNW of Sabana Grande, Puerto Rico
  7. 2.7 16 km NW of Aguadilla, Puerto Rico
  8. 2.5 3 km N of Guayanilla, Puerto Rico
  9. 2.1 3 km NE of Yauco, Puerto Rico
  10. 3.5 Puerto Rico region
  11. 2.7 Mona Passage
  12. 3.0 5 km NE of Quebradillas, Puerto Rico
  13. 2.9 Puerto Rico region
  14. 2.6 2 km SSW of Las Marías, Puerto Rico
  15. 2.5 6 km E of Espino, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.2 on 2022-11-29 — it released about 34 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.