QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

2 km WNW of Yauco, Puerto Rico

· 7.0 km deep · released about 24 lb of TNT

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10 km30 km60 km120 km N Yauco Municipio 5 kmGuayanilla Municipio 9 kmSabana Grande Municipio 9 kmGuánica Municipio 12 kmPeñuelas Municipio 15 kmMaricao Municipio 16 kmSan Germán Municipio 19 kmLajas Municipio 19 kmAdjuntas Municipio 20 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
7.0 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 5 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1718 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 24 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 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 18.0408, -66.8710. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yauco Municipio, PR 5 km (3 mi) SSW of here earthquakes near Yauco Municipio
Guayanilla Municipio, PR 9 km (5 mi) WNW of here earthquakes near Guayanilla Municipio
Sabana Grande Municipio, PR 9 km (6 mi) ESE of here earthquakes near Sabana Grande Municipio
Guánica Municipio, PR 12 km (7 mi) NNE of here earthquakes near Guánica Municipio
Peñuelas Municipio, PR 15 km (9 mi) W of here earthquakes near Peñuelas Municipio
Maricao Municipio, PR 16 km (10 mi) SSE of here earthquakes near Maricao Municipio

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

Aftershocks so far

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

  1. 1.7 0 km SE of Fuig, Puerto Rico
  2. 2.4 2 km S of Guánica, Puerto Rico
  3. 1.8 7 km SE of Maria Antonia, Puerto Rico
  4. 3.0 3 km N of Tallaboa Alta, Puerto Rico
  5. 2.6 4 km SW of Pole Ojea, Puerto Rico
  6. 2.9 3 km N of Tallaboa Alta, Puerto Rico
  7. 2.3 6 km SW of Guánica, Puerto Rico
  8. 2.0 3 km SSW of Indios, Puerto Rico
  9. 2.5 2 km SSW of Potala Pastillo, Puerto Rico
  10. 2.1 1 km ESE of Yauco, Puerto Rico
  11. 2.7 Puerto Rico region
  12. 2.0 7 km SSE of Guánica, Puerto Rico
  13. 2.2 4 km SSW of Indios, Puerto Rico
  14. 2.5 4 km SW of Tallaboa, Puerto Rico
  15. 2.9 5 km W of Fuig, 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 6.4 on 2020-01-07 — it released about 5,100,000 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.