QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

2 km SW of Santo Domingo, Puerto Rico

· 9.0 km deep · released about 6.2 lb of TNT

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10 km30 km60 km120 km N Peñuelas Municipio 5 kmGuayanilla Municipio 6 kmYauco Municipio 10 kmAdjuntas Municipio 15 kmPonce Municipio 18 kmSabana Grande Municipio 20 kmGuánica Municipio 20 kmMaricao Municipio 23 kmUtuado Municipio 25 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 1.5 (md)
Depth
9.0 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 5 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2373 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 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 18.0506, -66.7663. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 5 km (3 mi) WNW of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 6 km (4 mi) NE of here earthquakes near Guayanilla Municipio
Yauco Municipio, PR 10 km (6 mi) ESE of here earthquakes near Yauco Municipio
Adjuntas Municipio, PR 15 km (9 mi) S of here earthquakes near Adjuntas Municipio
Ponce Municipio, PR 18 km (11 mi) WNW of here earthquakes near Ponce Municipio
Sabana Grande Municipio, PR 20 km (12 mi) E of here earthquakes near Sabana Grande 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. 2.3 11 km SSE of Guánica, Puerto Rico
  2. 2.6 8 km S of Indios, Puerto Rico
  3. 1.7 1 km NW of Guayanilla, Puerto Rico
  4. 1.9 3 km S of Magas Arriba, Puerto Rico
  5. 2.0 1 km NNE of Guayanilla, Puerto Rico
  6. 2.1 0 km ENE of Guayanilla, Puerto Rico
  7. 1.9 3 km NNW of Guayanilla, Puerto Rico
  8. 1.8 2 km NNW of Guayanilla, Puerto Rico
  9. 1.6 2 km NE of Magas Arriba, Puerto Rico
  10. 1.7 0 km NW of Magas Arriba, Puerto Rico
  11. 2.4 6 km SSE of Indios, Puerto Rico
  12. 1.9 6 km S of Indios, Puerto Rico
  13. 1.9 9 km SSW of Tallaboa, Puerto Rico
  14. 2.6 0 km N of Magas Arriba, Puerto Rico
  15. 2.3 1 km E of Magas Arriba, 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 19,000,000 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.