QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

1 km ENE of Bayamon, Puerto Rico

· 12 km deep · released about 860 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cidra Municipio 6 kmCaguas Municipio 6 kmAguas Buenas Municipio 9 kmCayey Municipio 10 kmComerío Municipio 13 kmSan Lorenzo Municipio 14 kmGurabo Municipio 16 kmGuaynabo Municipio 18 kmAibonito Municipio 18 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
12 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Cidra Municipio, 6 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1180 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 860 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 6.7 390,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 860 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 18.1835, -66.1035. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cidra Municipio, PR 6 km (4 mi) E of here earthquakes near Cidra Municipio
Caguas Municipio, PR 6 km (4 mi) WSW of here earthquakes near Caguas Municipio
Aguas Buenas Municipio, PR 9 km (5 mi) SSE of here earthquakes near Aguas Buenas Municipio
Cayey Municipio, PR 10 km (6 mi) NNE of here earthquakes near Cayey Municipio
Comerío Municipio, PR 13 km (8 mi) ESE of here earthquakes near Comerío Municipio
San Lorenzo Municipio, PR 14 km (9 mi) WNW of here earthquakes near San Lorenzo Municipio

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

Aftershocks so far

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

  1. 2.3 5 km SSE of Salinas, Puerto Rico
  2. 2.4 3 km SSE of Salinas, Puerto Rico
  3. 2.3 Puerto Rico region
  4. 3.3 4 km ENE of Guaynabo, Puerto Rico
  5. 2.6 Puerto Rico region
  6. 2.6 8 km S of Orocovis, Puerto Rico
  7. 3.1 10 km S of Lamboglia, Puerto Rico
  8. 2.3 3 km S of Las Ochenta, Puerto Rico
  9. 2.4 4 km WSW of Central Aguirre, Puerto Rico
  10. 2.5 Puerto Rico region
  11. 2.7 4 km S of Salinas, Puerto Rico
  12. 2.3 4 km SSE of Salinas, Puerto Rico
  13. 1.9 Puerto Rico region
  14. 3.3 Puerto Rico region
  15. 2.4 15 km SSE of Central Aguirre, 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 280 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.