QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

5 km ESE of Pájaros, Puerto Rico

· 104 km deep · released about 1 tons of TNT

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10 km30 km60 km120 km N Bayamón Municipio 1 kmGuaynabo Municipio 6 kmToa Alta Municipio 8 kmNaranjito Municipio 11 kmAguas Buenas Municipio 11 kmCataño Municipio 11 kmToa Baja Municipio 13 kmSan Juan Municipio 14 kmComerío Municipio 14 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
104 km below the surface
Felt
no reports yet
Nearest
Bayamón Municipio, 1 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1391 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 tons 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 6.7 170,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,400× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,200× the energy of this one
  4. This earthquake M 3.2 about 1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.1× 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 18.3442, -66.1708. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bayamón Municipio, PR 1 km (0 mi) SSW of here earthquakes near Bayamón Municipio
Guaynabo Municipio, PR 6 km (4 mi) W of here earthquakes near Guaynabo Municipio
Toa Alta Municipio, PR 8 km (5 mi) ESE of here earthquakes near Toa Alta Municipio
Naranjito Municipio, PR 11 km (7 mi) NE of here earthquakes near Naranjito Municipio
Aguas Buenas Municipio, PR 11 km (7 mi) NNW of here earthquakes near Aguas Buenas Municipio
Cataño Municipio, PR 11 km (7 mi) SSW of here earthquakes near Cataño Municipio

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

Aftershocks so far

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

  1. 2.5 3 km WSW of Central Aguirre, Puerto Rico
  2. 2.8 1 km W of San Isidro, Puerto Rico
  3. 2.4 Puerto Rico region
  4. 2.0 1 km SSW of Vázquez, Puerto Rico
  5. 3.2 3 km NNW of San Juan, Puerto Rico
  6. 2.1 Puerto Rico region
  7. 2.2 3 km SE of Salinas, Puerto Rico
  8. 3.1 5 km N of Garrochales, Puerto Rico
  9. 2.6 4 km SSE of Arroyo, Puerto Rico
  10. 2.7 Puerto Rico region
  11. 3.4 Puerto Rico region
  12. 3.1 3 km E of Celada, Puerto Rico
  13. 2.5 6 km N of Yaurel, Puerto Rico
  14. 3.7 Puerto Rico region
  15. 3.4 5 km SSW of Ramos, 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 4.6 on 2019-03-12 — it released about 120 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.