QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

3 km WSW of La Plena, Puerto Rico

· 14 km deep · released about 800 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Salinas Municipio 8 kmCayey Municipio 12 kmAibonito Municipio 12 kmGuayama Municipio 12 kmCoamo Municipio 16 kmCidra Municipio 17 kmSanta Isabel Municipio 19 kmBarranquitas Municipio 21 kmArroyo Municipio 21 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 3.0 (md)
Depth
14 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Salinas Municipio, 8 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1283 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 800 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 420,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 19,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 13,000× the energy of this one
  4. This earthquake M 3.0 about 800 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 18.0315, -66.2298. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Salinas Municipio, PR 8 km (5 mi) NNE of here earthquakes near Salinas Municipio
Cayey Municipio, PR 12 km (7 mi) SW of here earthquakes near Cayey Municipio
Aibonito Municipio, PR 12 km (7 mi) SSE of here earthquakes near Aibonito Municipio
Guayama Municipio, PR 12 km (7 mi) WNW of here earthquakes near Guayama Municipio
Coamo Municipio, PR 16 km (10 mi) ESE of here earthquakes near Coamo Municipio
Cidra Municipio, PR 17 km (11 mi) SSW of here earthquakes near Cidra Municipio

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

Aftershocks so far

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

  1. 2.9 0 km S of Vázquez, Puerto Rico
  2. 2.8 Puerto Rico region
  3. 2.6 5 km SE of G. L. Garcia, Puerto Rico
  4. 2.3 5 km WNW of Orocovis, Puerto Rico
  5. 2.0 3 km SE of Ponce, Puerto Rico
  6. 3.3 Puerto Rico region
  7. 2.2 3 km E of Bayamon, Puerto Rico
  8. 3.1 8 km SSW of Orocovis, Puerto Rico
  9. 2.7 Puerto Rico region
  10. 2.7 7 km SE of Tallaboa, Puerto Rico
  11. 2.5 5 km SE of Tallaboa, Puerto Rico
  12. 2.0 3 km ENE of Tallaboa, Puerto Rico
  13. 2.5 3 km WSW of Santa Isabel, Puerto Rico
  14. 2.8 Puerto Rico region
  15. 2.9 Puerto Rico region

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 5.0 on 2020-01-07 — it released about 1,200 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.