QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

8 km N of Yauco, Puerto Rico

· 8.0 km deep · released about 21 lb of TNT

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10 km30 km60 km120 km N Yauco Municipio 3 kmSabana Grande Municipio 10 kmMaricao Municipio 11 kmAdjuntas Municipio 13 kmGuayanilla Municipio 14 kmPeñuelas Municipio 17 kmLas Marías Municipio 18 kmLares Municipio 18 kmSan Germán Municipio 19 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
8.0 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 3 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2634 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 5.8 730,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 520,000× the energy of this one
  3. Around the size people start to feel M 3.0 46× 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 18.1120, -66.8598. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yauco Municipio, PR 3 km (2 mi) N of here earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 10 km (6 mi) ENE of here earthquakes near Sabana Grande Municipio
Maricao Municipio, PR 11 km (7 mi) SE of here earthquakes near Maricao Municipio
Adjuntas Municipio, PR 13 km (8 mi) SW of here earthquakes near Adjuntas Municipio
Guayanilla Municipio, PR 14 km (8 mi) NNW of here earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 17 km (10 mi) NW of here earthquakes near Peñuelas Municipio

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

Aftershocks so far

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

  1. 2.3 12 km SSW of Tallaboa, Puerto Rico
  2. 2.0 2 km SSW of Adjuntas, Puerto Rico
  3. 1.8 8 km S of Potala Pastillo, Puerto Rico
  4. 1.9 3 km NE of San Germán, Puerto Rico
  5. 2.1 10 km W of Mayagüez, Puerto Rico
  6. 1.6 1 km SSW of Pole Ojea, Puerto Rico
  7. 2.1 4 km SW of Añasco, Puerto Rico
  8. 2.0 1 km WSW of Pole Ojea, Puerto Rico
  9. 2.0 7 km W of Mayagüez, Puerto Rico
  10. 1.5 10 km SSE of Ponce, Puerto Rico
  11. 1.6 11 km S of Pole Ojea, Puerto Rico
  12. 2.0 9 km SSW of Pole Ojea, Puerto Rico
  13. 2.0 9 km S of Pole Ojea, Puerto Rico
  14. 1.5 13 km SSE of Ponce, Puerto Rico
  15. 1.6 12 km SSE of Ponce, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.