QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1Md

24 km SW of Stella, Puerto Rico

· 10 km deep · released about 43 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 25 kmCabo Rojo Municipio 33 kmHormigueros Municipio 33 kmAñasco Municipio 33 kmAguada Municipio 33 kmSan Germán Municipio 42 kmMoca Municipio 42 kmAguadilla Municipio 44 kmLajas Municipio 46 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 2.1 (Md)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 25 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3784 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 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 18.1812, -67.4225. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 25 km (16 mi) SW of here earthquakes near Rincón Municipio
Cabo Rojo Municipio, PR 33 km (20 mi) NW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 33 km (20 mi) W of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 33 km (20 mi) WSW of here earthquakes near Añasco Municipio
Aguada Municipio, PR 33 km (21 mi) SW of here earthquakes near Aguada Municipio
San Germán Municipio, PR 42 km (26 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

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

  1. 2.2 40 km WNW of Rincón, Puerto Rico
  2. 1.7 14 km NW of Puerto Real, Puerto Rico
  3. 2.4 66 km W of Stella, Puerto Rico
  4. 2.8 Mona Passage
  5. 2.4 7 km ENE of Hormigueros, Puerto Rico
  6. 2.1 5 km E of Hormigueros, Puerto Rico
  7. 2.3 5 km E of Hormigueros, Puerto Rico
  8. 2.4 6 km N of San Germán, Puerto Rico
  9. 1.8 5 km E of Espino, Puerto Rico
  10. 2.9 55 km WSW of Stella, Puerto Rico
  11. 1.6 13 km S of Pole Ojea, Puerto Rico
  12. 1.7 16 km NW of Rincón, Puerto Rico
  13. 2.2 6 km WSW of Maricao, Puerto Rico
  14. 3.3 22 km NW of Aguadilla, Puerto Rico
  15. 1.8 6 km WNW of Las Marías, 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

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