QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

33 km WSW of Stella, Puerto Rico

· 40 km deep · released about 85 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 35 kmMayagüez Municipio 40 kmCabo Rojo Municipio 40 kmHormigueros Municipio 43 kmAguada Municipio 43 kmAñasco Municipio 43 kmSan Germán Municipio 51 kmMoca Municipio 52 kmAguadilla Municipio 53 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
40 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 35 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2558 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 18.1591, -67.5176. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 35 km (21 mi) SW of here earthquakes near Rincón Municipio
Mayagüez Municipio, PR 40 km (25 mi) ENE of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 40 km (25 mi) WNW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 43 km (26 mi) W of here earthquakes near Hormigueros Municipio
Aguada Municipio, PR 43 km (26 mi) SW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 43 km (27 mi) WSW of here earthquakes near Añasco Municipio

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

Aftershocks so far

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

  1. 2.0 18 km W of Stella, Puerto Rico
  2. 2.6 28 km SW of Stella, Puerto Rico
  3. 2.9 67 km SE of Punta Cana, Dominican Republic
  4. 2.1 3 km ENE of Rincón, Puerto Rico
  5. 2.4 6 km W of Stella, Puerto Rico
  6. 2.5 61 km WSW of Stella, Puerto Rico
  7. 2.3 25 km SW of Stella, Puerto Rico
  8. 2.4 Mona Passage
  9. 2.4 12 km W of Stella, Puerto Rico
  10. 2.7 60 km ESE of Punta Cana, Dominican Republic
  11. 2.4 32 km WSW of Stella, Puerto Rico
  12. 2.7 44 km W of Pole Ojea, Puerto Rico
  13. 1.6 1 km W of San Germán, Puerto Rico
  14. 2.8 Mona Passage
  15. 1.6 0 km NW of Cabo Rojo, 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 4.4 on 2017-10-01 — it released about 1,400 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.