QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

1 km NNE of Potala Pastillo, Puerto Rico

· 6.0 km deep · released about 1,000 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Juana Díaz Municipio 1 kmPonce Municipio 12 kmSanta Isabel Municipio 12 kmVillalba Municipio 14 kmCoamo Municipio 18 kmSalinas Municipio 25 kmOrocovis Municipio 25 kmJayuya Municipio 25 kmPeñuelas Municipio 25 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
6.0 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
Juana Díaz Municipio, 1 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1511 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,000 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 6.7 330,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 15,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,000 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 18.0040, -66.4915. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Juana Díaz Municipio, PR 1 km (0 mi) N of here earthquakes near Juana Díaz Municipio
Ponce Municipio, PR 12 km (8 mi) E of here earthquakes near Ponce Municipio
Santa Isabel Municipio, PR 12 km (8 mi) WNW of here earthquakes near Santa Isabel Municipio
Villalba Municipio, PR 14 km (9 mi) S of here earthquakes near Villalba Municipio
Coamo Municipio, PR 18 km (11 mi) SW of here earthquakes near Coamo Municipio
Salinas Municipio, PR 25 km (15 mi) W of here earthquakes near Salinas Municipio

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

Aftershocks so far

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

  1. 2.2 4 km SW of Indios, Puerto Rico
  2. 2.4 7 km SE of Maria Antonia, Puerto Rico
  3. 2.2 2 km SSE of Magas Arriba, Puerto Rico
  4. 2.3 0 km WNW of Guánica, Puerto Rico
  5. 2.1 0 km NE of Indios, Puerto Rico
  6. 2.9 5 km SSW of Guánica, Puerto Rico
  7. 2.6 6 km SE of Maria Antonia, Puerto Rico
  8. 2.4 2 km N of Palomas, Puerto Rico
  9. 2.8 3 km WSW of Guánica, Puerto Rico
  10. 2.4 13 km SSE of Guánica, Puerto Rico
  11. 2.3 3 km WSW of Indios, Puerto Rico
  12. 1.9 2 km S of Indios, Puerto Rico
  13. 2.5 8 km SSE of Guánica, Puerto Rico
  14. 2.6 5 km SSE of Maria Antonia, Puerto Rico
  15. 1.7 3 km SW of Indios, 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 6.4 on 2020-01-07 — it released about 120,000 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.