QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

2 km S of Capitanejo, Puerto Rico

· 10 km deep · released about 11 lb of TNT

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10 km30 km60 km120 km N Juana Díaz Municipio 5 kmPonce Municipio 7 kmSanta Isabel Municipio 16 kmVillalba Municipio 17 kmPeñuelas Municipio 21 kmCoamo Municipio 23 kmJayuya Municipio 25 kmOrocovis Municipio 27 kmGuayanilla Municipio 28 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 1.7 (md)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Juana Díaz Municipio, 5 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2738 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 930,000× the energy of this one
  3. Around the size people start to feel M 3.0 83× the energy of this one
  4. This earthquake M 1.7 about 11 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 17.9918, -66.5373. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Juana Díaz Municipio, PR 5 km (3 mi) W of here earthquakes near Juana Díaz Municipio
Ponce Municipio, PR 7 km (5 mi) E of here earthquakes near Ponce Municipio
Santa Isabel Municipio, PR 16 km (10 mi) WNW of here earthquakes near Santa Isabel Municipio
Villalba Municipio, PR 17 km (11 mi) SSW of here earthquakes near Villalba Municipio
Peñuelas Municipio, PR 21 km (13 mi) E of here earthquakes near Peñuelas Municipio
Coamo Municipio, PR 23 km (14 mi) WSW of here earthquakes near Coamo Municipio

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

Aftershocks so far

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

  1. 1.5 5 km NW of Coamo, Puerto Rico
  2. 1.8 0 km SSE of Jobos, Puerto Rico
  3. 1.9 2 km S of Barahona, Puerto Rico
  4. 2.0 18 km S of Indios, Puerto Rico
  5. 1.9 4 km W of Cayuco, Puerto Rico
  6. 1.7 18 km SSW of Tallaboa, Puerto Rico
  7. 1.9 11 km E of Maricao, Puerto Rico
  8. 1.6 3 km SSE of Adjuntas, Puerto Rico
  9. 1.6 3 km WNW of Santo Domingo, Puerto Rico
  10. 1.8 5 km SSE of Adjuntas, Puerto Rico
  11. 1.8 5 km S of Adjuntas, Puerto Rico
  12. 1.9 1 km E of Jauca, Puerto Rico
  13. 1.9 6 km ESE of Maricao, Puerto Rico
  14. 1.7 15 km S of Central Aguirre, Puerto Rico
  15. 1.7 6 km ESE of Jayuya, 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 4.6 on 2019-03-12 — it released about 21,000 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.