QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9Md

7 km WSW of Stella, Puerto Rico

· 29 km deep · released about 21 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 8 kmAguada Municipio 16 kmAñasco Municipio 19 kmMoca Municipio 26 kmAguadilla Municipio 27 kmHormigueros Municipio 28 kmSan Germán Municipio 36 kmLas Marías Municipio 36 kmCabo Rojo 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 1.9 (Md)
Depth
29 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 8 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3704 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 18.2989, -67.3135. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 8 km (5 mi) SW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 16 km (10 mi) WSW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 19 km (12 mi) W of here earthquakes near Añasco Municipio
Moca Municipio, PR 26 km (16 mi) WSW of here earthquakes near Moca Municipio
Aguadilla Municipio, PR 27 km (17 mi) SW of here earthquakes near Aguadilla Municipio
Hormigueros Municipio, PR 28 km (17 mi) NW of here earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 2.3 2 km SSW of La Playa, Puerto Rico
  2. 2.4 12 km S of Lares, Puerto Rico
  3. 2.1 4 km SW of La Playa, Puerto Rico
  4. 2.0 8 km ESE of Maricao, Puerto Rico
  5. 2.5 2 km ESE of La Playa, Puerto Rico
  6. 2.6 21 km SW of Stella, Puerto Rico
  7. 3.1 33 km NW of Rincón, Puerto Rico
  8. 2.5 4 km WNW of Aguada, Puerto Rico
  9. 2.8 8 km N of Quebradillas, Puerto Rico
  10. 2.7 4 km NNW of La Playa, Puerto Rico
  11. 2.0 10 km W of Puerto Real, Puerto Rico
  12. 1.8 17 km W of Rincón, Puerto Rico
  13. 2.7 3 km SW of Aguada, Puerto Rico
  14. 2.6 10 km WSW of Mayagüez, Puerto Rico
  15. 1.5 3 km ENE of Pole Ojea, 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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