QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

16 km SSW of Stella, Puerto Rico

· 15 km deep · released about 82 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 19 kmHormigueros Municipio 21 kmAñasco Municipio 22 kmCabo Rojo Municipio 24 kmAguada Municipio 25 kmSan Germán Municipio 30 kmMoca Municipio 32 kmLas Marías Municipio 35 kmLajas Municipio 36 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
15 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 19 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2563 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 82 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 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 18.1808, -67.3060. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 19 km (12 mi) SSW of here earthquakes near Rincón Municipio
Hormigueros Municipio, PR 21 km (13 mi) WNW of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 22 km (14 mi) WSW of here earthquakes near Añasco Municipio
Cabo Rojo Municipio, PR 24 km (15 mi) NNW of here earthquakes near Cabo Rojo Municipio
Aguada Municipio, PR 25 km (16 mi) SSW of here earthquakes near Aguada Municipio
San Germán Municipio, PR 30 km (18 mi) WNW of here earthquakes near San Germán Municipio

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

Aftershocks so far

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

  1. 1.7 3 km WNW of Pole Ojea, Puerto Rico
  2. 1.7 1 km S of Liborio Negron Torres, Puerto Rico
  3. 1.9 4 km WNW of Fuig, Puerto Rico
  4. 2.6 31 km W of Puerto Real, Puerto Rico
  5. 1.9 11 km SSE of La Parguera, Puerto Rico
  6. 2.4 7 km ESE of Maricao, Puerto Rico
  7. 1.8 12 km N of Yauco, Puerto Rico
  8. 1.6 11 km SE of La Parguera, Puerto Rico
  9. 1.8 7 km WNW of Puerto Real, Puerto Rico
  10. 2.3 7 km WSW of Guánica, Puerto Rico
  11. 2.4 37 km W of Puerto Real, Puerto Rico
  12. 1.6 3 km WSW of Fuig, Puerto Rico
  13. 1.7 13 km WSW of Pole Ojea, Puerto Rico
  14. 2.8 Mona Passage
  15. 2.0 2 km NNE of Sabana Grande, 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 4.3 on 2019-09-05 — it released about 1,000 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.