QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4Md

3 km S of Playita Cortada, Puerto Rico

· 8.0 km deep · released about 120 lb of TNT

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10 km30 km60 km120 km N Santa Isabel Municipio 6 kmJuana Díaz Municipio 7 kmPonce Municipio 18 kmCoamo Municipio 19 kmSalinas Municipio 19 kmVillalba Municipio 20 kmAibonito Municipio 27 kmOrocovis Municipio 29 kmBarranquitas Municipio 31 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 2.4 (Md)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Santa Isabel Municipio, 6 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3448 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 17.9561, -66.4428. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Isabel Municipio, PR 6 km (4 mi) W of here earthquakes near Santa Isabel Municipio
Juana Díaz Municipio, PR 7 km (4 mi) SE of here earthquakes near Juana Díaz Municipio
Ponce Municipio, PR 18 km (11 mi) ESE of here earthquakes near Ponce Municipio
Coamo Municipio, PR 19 km (12 mi) SSW of here earthquakes near Coamo Municipio
Salinas Municipio, PR 19 km (12 mi) W of here earthquakes near Salinas Municipio
Villalba Municipio, PR 20 km (12 mi) S of here earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 2.1 19 km S of Tallaboa, Puerto Rico
  2. 2.1 9 km ESE of Adjuntas, Puerto Rico
  3. 2.2 4 km S of Magas Arriba, Puerto Rico
  4. 1.6 6 km WNW of Palomas, Puerto Rico
  5. 1.9 2 km NW of Aibonito, Puerto Rico
  6. 2.5 3 km E of La Plena, Puerto Rico
  7. 2.8 13 km S of Salinas, Puerto Rico
  8. 2.7 Puerto Rico region
  9. 2.4 26 km S of Ponce, Puerto Rico
  10. 2.3 0 km N of Pastos, Puerto Rico
  11. 1.8 Puerto Rico region
  12. 2.5 3 km ESE of Jauca, Puerto Rico
  13. 2.2 0 km SSE of Tallaboa, Puerto Rico
  14. 1.7 23 km S of Tallaboa, Puerto Rico
  15. 2.3 21 km SSE of Arroyo, 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

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