QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

1 km WNW of Pájaros, Puerto Rico

· 107 km deep · released about 110 lb of TNT

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10 km30 km60 km120 km N Toa Alta Municipio 2 kmBayamón Municipio 7 kmNaranjito Municipio 10 kmToa Baja Municipio 10 kmCataño Municipio 11 kmDorado Municipio 12 kmGuaynabo Municipio 12 kmCorozal Municipio 13 kmVega Alta 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 2.4 (md)
Depth
107 km below the surface
Felt
no reports yet
Nearest
Toa Alta Municipio, 2 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2593 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 99,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.8× the energy of this one
  4. This earthquake M 2.4 about 110 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.

Where

Epicentre 18.3730, -66.2253. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Toa Alta Municipio, PR 2 km (1 mi) ENE of here earthquakes near Toa Alta Municipio
Bayamón Municipio, PR 7 km (4 mi) WNW of here earthquakes near Bayamón Municipio
Naranjito Municipio, PR 10 km (6 mi) NNE of here earthquakes near Naranjito Municipio
Toa Baja Municipio, PR 10 km (6 mi) SSW of here earthquakes near Toa Baja Municipio
Cataño Municipio, PR 11 km (7 mi) SW of here earthquakes near Cataño Municipio
Dorado Municipio, PR 12 km (7 mi) SSE of here earthquakes near Dorado 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. 2.0 1 km SSE of Las Ollas, Puerto Rico
  2. 1.7 10 km WNW of Orocovis, Puerto Rico
  3. 1.9 4 km E of Guayabal, Puerto Rico
  4. 1.9 3 km SE of Utuado, Puerto Rico
  5. 1.7 1 km WSW of Río Cañas Abajo, Puerto Rico
  6. 1.6 10 km NW of Coto Laurel, Puerto Rico
  7. 2.0 1 km SW of Las Ochenta, Puerto Rico
  8. 2.5 3 km ESE of Jauca, Puerto Rico
  9. 1.7 2 km E of Jauca, Puerto Rico
  10. 2.2 12 km NNW of Tierras Nuevas Poniente, Puerto Rico
  11. 1.8 1 km ESE of Mariano Colón, Puerto Rico
  12. 2.3 1 km E of Corozal, Puerto Rico
  13. 1.6 2 km SE of El Ojo, Puerto Rico
  14. 1.7 1 km W of Jauca, Puerto Rico
  15. 2.1 0 km N of Salinas, 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 2,200 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.