QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

30 km WSW of Stella, Puerto Rico

· 6.0 km deep · released about 420 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 31 kmAguada Municipio 39 kmCabo Rojo Municipio 40 kmAñasco Municipio 40 kmHormigueros Municipio 40 kmMayagüez Municipio 43 kmMoca Municipio 49 kmAguadilla Municipio 49 kmSan Germán Municipio 49 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 2.8 (md)
Depth
6.0 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 31 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2890 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 420 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 36,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 26,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.3× the energy of this one
  4. This earthquake M 2.8 about 420 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 18.1900, -67.4948. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 31 km (19 mi) WSW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 39 km (24 mi) WSW of here earthquakes near Aguada Municipio
Cabo Rojo Municipio, PR 40 km (25 mi) WNW of here earthquakes near Cabo Rojo Municipio
Añasco Municipio, PR 40 km (25 mi) WSW of here earthquakes near Añasco Municipio
Hormigueros Municipio, PR 40 km (25 mi) W of here earthquakes near Hormigueros Municipio
Mayagüez Municipio, PR 43 km (27 mi) ENE of here earthquakes near Mayagüez 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. 2.8 7 km SSW of La Playa, Puerto Rico
  2. 2.4 5 km SSW of Palmarejo, Puerto Rico
  3. 2.3 2 km NE of Hormigueros, Puerto Rico
  4. 1.5 2 km NNW of Puerto Real, Puerto Rico
  5. 1.8 1 km NNW of Mayagüez, Puerto Rico
  6. 2.7 11 km W of Mayagüez, Puerto Rico
  7. 2.0 8 km SW of Las Marías, Puerto Rico
  8. 1.9 19 km W of Puerto Real, Puerto Rico
  9. 1.7 16 km W of Puerto Real, Puerto Rico
  10. 2.5 16 km W of Puerto Real, Puerto Rico
  11. 1.9 7 km E of Pole Ojea, Puerto Rico
  12. 1.6 1 km NNE of Palmarejo, Puerto Rico
  13. 2.5 39 km NW of Rincón, Puerto Rico
  14. 2.0 13 km NW of Puerto Real, Puerto Rico
  15. 3.1 67 km SE of Punta Cana, Dominican Republic

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 290 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.