QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

3 km E of G. L. Garcia, Puerto Rico

· 20 km deep · released about 130 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cayey Municipio 9 kmCaguas Municipio 10 kmSan Lorenzo Municipio 11 kmCidra Municipio 11 kmAguas Buenas Municipio 16 kmPatillas Municipio 16 kmArroyo Municipio 17 kmGuayama Municipio 18 kmComerío Municipio 19 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
20 km below the surface
Felt
no reports yet
Nearest
Cayey Municipio, 9 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 93 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 130 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 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 80,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.2× the energy of this one
  4. This earthquake M 2.4 about 130 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 18.1232, -66.0730. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cayey Municipio, PR 9 km (5 mi) ENE of here earthquakes near Cayey Municipio
Caguas Municipio, PR 10 km (6 mi) SSW of here earthquakes near Caguas Municipio
San Lorenzo Municipio, PR 11 km (7 mi) WSW of here earthquakes near San Lorenzo Municipio
Cidra Municipio, PR 11 km (7 mi) ESE of here earthquakes near Cidra Municipio
Aguas Buenas Municipio, PR 16 km (10 mi) SSE of here earthquakes near Aguas Buenas Municipio
Patillas Municipio, PR 16 km (10 mi) NNW of here earthquakes near Patillas Municipio

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

Aftershocks so far

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

  1. 2.5 6 km SSE of Salinas, Puerto Rico
  2. 3.1 12 km SE of Emajagua, Puerto Rico
  3. 2.0 0 km W of Mariano Colón, Puerto Rico
  4. 2.4 0 km ESE of Potala Pastillo, Puerto Rico
  5. 2.3 1 km E of Coto Laurel, Puerto Rico
  6. 2.2 5 km WSW of Naranjito, Puerto Rico
  7. 3.1 2 km SW of Hato Candal, Puerto Rico
  8. 2.7 24 km SE of Emajagua, Puerto Rico
  9. 2.3 5 km NNW of Coco, Puerto Rico
  10. 2.1 10 km E of El Negro, Puerto Rico
  11. 2.9 0 km E of Parcelas Peñuelas, Puerto Rico
  12. 3.2 11 km SSE of Punta Santiago, Puerto Rico
  13. 2.1 5 km SSE of Bajandas, Puerto Rico
  14. 2.7 5 km SW of Guaynabo, Puerto Rico
  15. 2.2 0 km SE of Parcelas Peñuelas, 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 2016-12-05 — it released about 1,800 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.