QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

1 km ESE of Palmarejo, Puerto Rico

· 13 km deep · released about 98 lb of TNT

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10 km30 km60 km120 km N Lajas Municipio 7 kmSan Germán Municipio 8 kmHormigueros Municipio 12 kmCabo Rojo Municipio 13 kmSabana Grande Municipio 13 kmGuánica Municipio 18 kmMaricao Municipio 20 kmYauco Municipio 22 kmLas Marías Municipio 23 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
13 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 7 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3087 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 98 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 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 18.0356, -67.0626. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 7 km (4 mi) NNW of here earthquakes near Lajas Municipio
San Germán Municipio, PR 8 km (5 mi) SSW of here earthquakes near San Germán Municipio
Hormigueros Municipio, PR 12 km (8 mi) SSE of here earthquakes near Hormigueros Municipio
Cabo Rojo Municipio, PR 13 km (8 mi) ENE of here earthquakes near Cabo Rojo Municipio
Sabana Grande Municipio, PR 13 km (8 mi) WSW of here earthquakes near Sabana Grande Municipio
Guánica Municipio, PR 18 km (11 mi) WNW of here earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 1.7 21 km W of Puerto Real, Puerto Rico
  2. 2.5 12 km SW of Pole Ojea, Puerto Rico
  3. 2.6 11 km WSW of Pole Ojea, Puerto Rico
  4. 2.0 6 km SSW of Guánica, Puerto Rico
  5. 1.9 7 km S of La Parguera, Puerto Rico
  6. 2.3 34 km SW of Pole Ojea, Puerto Rico
  7. 2.9 5 km ENE of Mayagüez, Puerto Rico
  8. 1.7 4 km W of La Parguera, Puerto Rico
  9. 1.7 8 km ESE of Maricao, Puerto Rico
  10. 2.9 4 km NW of Caban, Puerto Rico
  11. 1.8 13 km SSE of Tallaboa, Puerto Rico
  12. 1.8 12 km WNW of Puerto Real, Puerto Rico
  13. 2.2 17 km SSE of La Parguera, Puerto Rico
  14. 2.8 25 km SW of Stella, Puerto Rico
  15. 2.1 22 km SSE of Maria Antonia, 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.