QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

6 km WNW of Palomas, Puerto Rico

· 22 km deep · released about 1,700 lb of TNT

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10 km30 km60 km120 km N Corozal Municipio 5 kmNaranjito Municipio 7 kmBarranquitas Municipio 7 kmComerío Municipio 11 kmMorovis Municipio 13 kmToa Alta Municipio 13 kmOrocovis Municipio 14 kmAibonito Municipio 16 kmBayamón 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 3.2 (md)
Depth
22 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Corozal Municipio, 5 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1514 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 1,700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 200,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,800× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,200× the energy of this one
  4. This earthquake M 3.2 about 1,700 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.8× more

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 18.2638, -66.3133. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Corozal Municipio, PR 5 km (3 mi) SSE of here earthquakes near Corozal Municipio
Naranjito Municipio, PR 7 km (4 mi) WSW of here earthquakes near Naranjito Municipio
Barranquitas Municipio, PR 7 km (4 mi) N of here earthquakes near Barranquitas Municipio
Comerío Municipio, PR 11 km (7 mi) WNW of here earthquakes near Comerío Municipio
Morovis Municipio, PR 13 km (8 mi) ESE of here earthquakes near Morovis Municipio
Toa Alta Municipio, PR 13 km (8 mi) SSW of here earthquakes near Toa Alta Municipio

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

Aftershocks so far

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

  1. 1.8 4 km W of Ponce, Puerto Rico
  2. 2.3 6 km NW of Palomas, Puerto Rico
  3. 2.2 2 km E of G. L. Garcia, Puerto Rico
  4. 2.1 4 km E of Tallaboa Alta, Puerto Rico
  5. 2.6 2 km WNW of Río Cañas Abajo, Puerto Rico
  6. 3.6 0 km W of Canovanas, Puerto Rico
  7. 3.5 10 km S of Central Aguirre, Puerto Rico
  8. 1.6 2 km SSE of Salinas, Puerto Rico
  9. 3.5 1 km E of Arecibo, Puerto Rico
  10. 3.1 12 km S of Central Aguirre, Puerto Rico
  11. 2.8 10 km S 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.

On USGS

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