QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

1 km E of Corozal, Puerto Rico

· 60 km deep · released about 85 lb of TNT

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10 km30 km60 km120 km N Corozal Municipio 5 kmToa Alta Municipio 6 kmNaranjito Municipio 7 kmVega Alta Municipio 11 kmMorovis Municipio 13 kmBayamón Municipio 14 kmComerío Municipio 15 kmDorado Municipio 15 kmBarranquitas Municipio 16 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 2.3 (md)
Depth
60 km below the surface
Felt
no reports yet
Nearest
Corozal Municipio, 5 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2542 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 18.3403, -66.2993. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Corozal Municipio, PR 5 km (3 mi) NE of here earthquakes near Corozal Municipio
Toa Alta Municipio, PR 6 km (4 mi) WSW of here earthquakes near Toa Alta Municipio
Naranjito Municipio, PR 7 km (5 mi) NW of here earthquakes near Naranjito Municipio
Vega Alta Municipio, PR 11 km (7 mi) SSE of here earthquakes near Vega Alta Municipio
Morovis Municipio, PR 13 km (8 mi) E of here earthquakes near Morovis Municipio
Bayamón Municipio, PR 14 km (9 mi) W of here earthquakes near Bayamón Municipio

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

Aftershocks so far

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

  1. 1.9 2 km ESE of Jauca, Puerto Rico
  2. 1.7 6 km SSE of Jauca, Puerto Rico
  3. 2.3 4 km SE of Jauca, Puerto Rico
  4. 1.6 6 km SSW of Jagual, Puerto Rico
  5. 2.1 4 km SSE of Salinas, Puerto Rico
  6. 2.2 2 km SSE of Salinas, Puerto Rico
  7. 2.5 2 km SSW of Sabana Hoyos, Puerto Rico
  8. 1.9 2 km SSW of Las Ochenta, Puerto Rico
  9. 2.5 2 km NNE of El Ojo, Puerto Rico
  10. 2.2 3 km ESE of Jauca, Puerto Rico
  11. 1.9 5 km SE of Jauca, Puerto Rico
  12. 1.8 2 km SSW of Las Ochenta, Puerto Rico
  13. 2.0 4 km SE of Salinas, Puerto Rico
  14. 1.6 3 km SSW of Las Ochenta, Puerto Rico
  15. 1.6 2 km ENE 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 2,800 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.