QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

3 km ENE of Magas Arriba, Puerto Rico

· 10 km deep · released about 19 lb of TNT

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10 km30 km60 km120 km N Peñuelas Municipio 1 kmGuayanilla Municipio 7 kmYauco Municipio 14 kmPonce Municipio 14 kmAdjuntas Municipio 17 kmGuánica Municipio 21 kmSabana Grande Municipio 23 kmJayuya Municipio 26 kmJuana Díaz Municipio 26 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
10 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 1 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2688 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 19 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 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 18.0261, -66.7391. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 1 km (1 mi) W of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 7 km (4 mi) ENE of here earthquakes near Guayanilla Municipio
Yauco Municipio, PR 14 km (9 mi) ESE of here earthquakes near Yauco Municipio
Ponce Municipio, PR 14 km (9 mi) W of here earthquakes near Ponce Municipio
Adjuntas Municipio, PR 17 km (11 mi) S of here earthquakes near Adjuntas Municipio
Guánica Municipio, PR 21 km (13 mi) ENE of here earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 1.8 6 km W of Fuig, Puerto Rico
  2. 2.0 2 km WSW of Tallaboa, Puerto Rico
  3. 1.5 5 km NE of Sabana Grande, Puerto Rico
  4. 2.4 3 km WNW of La Parguera, Puerto Rico
  5. 2.4 12 km S of Salinas, Puerto Rico
  6. 1.9 5 km N of Peñuelas, Puerto Rico
  7. 2.1 8 km S of Indios, Puerto Rico
  8. 1.8 1 km SSE of Hormigueros, Puerto Rico
  9. 1.6 Puerto Rico region
  10. 2.1 8 km NNE of Lluveras, Puerto Rico
  11. 1.9 28 km SSE of La Parguera, Puerto Rico
  12. 2.0 5 km SW of Adjuntas, Puerto Rico
  13. 1.9 6 km SSE of Tallaboa, Puerto Rico
  14. 2.4 5 km NE of Sabana Grande, Puerto Rico
  15. 1.8 7 km NE of Sabana Grande, 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.