QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

3 km N of Palomas, Puerto Rico

· 15 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Naranjito Municipio 3 kmComerío Municipio 6 kmBarranquitas Municipio 8 kmCorozal Municipio 9 kmToa Alta Municipio 12 kmBayamón Municipio 14 kmAguas Buenas Municipio 14 kmCidra Municipio 14 kmAibonito Municipio 14 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
15 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Naranjito Municipio, 3 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 463 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 950 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 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 18.2603, -66.2600. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Naranjito Municipio, PR 3 km (2 mi) SSW of here earthquakes near Naranjito Municipio
Comerío Municipio, PR 6 km (4 mi) NW of here earthquakes near Comerío Municipio
Barranquitas Municipio, PR 8 km (5 mi) NE of here earthquakes near Barranquitas Municipio
Corozal Municipio, PR 9 km (5 mi) SE of here earthquakes near Corozal Municipio
Toa Alta Municipio, PR 12 km (7 mi) S of here earthquakes near Toa Alta Municipio
Bayamón Municipio, PR 14 km (9 mi) SW of here earthquakes near Bayamón Municipio

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

Aftershocks so far

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

  1. 2.1 3 km S of Potala Pastillo, Puerto Rico
  2. 3.2 4 km NNE of Ponce, Puerto Rico
  3. 3.2 13 km NNW of Brenas, Puerto Rico
  4. 2.0 4 km SW of Jagual, Puerto Rico
  5. 2.4 2 km ENE of Ponce, Puerto Rico
  6. 2.5 2 km ENE of Ponce, Puerto Rico
  7. 2.1 4 km N of Orocovis, Puerto Rico
  8. 1.9 6 km ENE of Orocovis, Puerto Rico
  9. 2.4 1 km W of Río Cañas Abajo, Puerto Rico
  10. 2.1 2 km N of Santa Clara, Puerto Rico
  11. 1.9 0 km ESE of Vázquez, Puerto Rico
  12. 2.2 6 km SSW of Playita Cortada, Puerto Rico
  13. 2.2 0 km NNW of Potala Pastillo, Puerto Rico
  14. 2.4 0 km E of Potala Pastillo, Puerto Rico
  15. 2.2 4 km SSW of Las Ochenta, 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 2019-03-12 — it released about 250 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.