QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

37 km WSW of Stella, Puerto Rico

· 23 km deep · released about 88 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 35 kmRincón Municipio 38 kmAguada Municipio 46 kmAñasco Municipio 49 kmCabo Rojo Municipio 52 kmHormigueros Municipio 52 kmAguadilla Municipio 55 kmMoca Municipio 57 kmSan Germán Municipio 61 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
23 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 35 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3101 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 88 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 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× 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 88 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 18.2411, -67.5958. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 35 km (22 mi) ENE of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 38 km (24 mi) WSW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 46 km (28 mi) WSW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 49 km (31 mi) W of here earthquakes near Añasco Municipio
Cabo Rojo Municipio, PR 52 km (32 mi) WNW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 52 km (32 mi) WNW of here earthquakes near Hormigueros 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. 1.8 12 km WNW of Puerto Real, Puerto Rico
  2. 2.9 50 km WNW of Rincón, Puerto Rico
  3. 2.8 25 km SW of Stella, Puerto Rico
  4. 2.7 15 km WNW of Rincón, Puerto Rico
  5. 2.3 2 km N of Puerto Real, Puerto Rico
  6. 3.0 51 km SE of Punta Cana, Dominican Republic
  7. 3.0 54 km E of Punta Cana, Dominican Republic
  8. 2.4 20 km W of Puerto Real, Puerto Rico
  9. 3.1 52 km WSW of Stella, Puerto Rico
  10. 2.7 42 km WSW of Pole Ojea, Puerto Rico
  11. 2.7 48 km WSW of Stella, Puerto Rico
  12. 2.5 18 km W of Rincón, Puerto Rico
  13. 1.9 19 km ESE of Puerto Real, Puerto Rico
  14. 2.8 8 km SSW of Stella, Puerto Rico
  15. 2.8 44 km WSW of Stella, 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.