QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

5 km N of Santo Domingo, Puerto Rico

· 23 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Adjuntas Municipio 7 kmPeñuelas Municipio 10 kmYauco Municipio 12 kmGuayanilla Municipio 13 kmUtuado Municipio 18 kmPonce Municipio 20 kmMaricao Municipio 20 kmJayuya Municipio 20 kmSabana Grande 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
23 km below the surface
Felt
8 reports · strongest reported intensity IV
Nearest
Adjuntas Municipio, 7 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1702 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have 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 18.1163, -66.7523. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Adjuntas Municipio, PR 7 km (5 mi) S of here earthquakes near Adjuntas Municipio
Peñuelas Municipio, PR 10 km (6 mi) NNW of here earthquakes near Peñuelas Municipio
Yauco Municipio, PR 12 km (7 mi) ENE of here earthquakes near Yauco Municipio
Guayanilla Municipio, PR 13 km (8 mi) NNE of here earthquakes near Guayanilla Municipio
Utuado Municipio, PR 18 km (11 mi) SSW of here earthquakes near Utuado Municipio
Ponce Municipio, PR 20 km (12 mi) NW of here earthquakes near Ponce Municipio

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

Aftershocks so far

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

  1. 3.3 4 km E of La Parguera, Puerto Rico
  2. 3.5 4 km E of La Parguera, Puerto Rico
  3. 3.3 4 km E of La Parguera, Puerto Rico
  4. 2.1 4 km E of La Parguera, Puerto Rico
  5. 2.8 15 km SSE of Guánica, Puerto Rico
  6. 2.7 15 km SSE of Guánica, Puerto Rico
  7. 2.5 10 km SW of Guánica, Puerto Rico
  8. 3.0 3 km ESE of Maria Antonia, Puerto Rico
  9. 3.3 12 km S of Guánica, Puerto Rico
  10. 2.8 16 km SSE of Guánica, Puerto Rico
  11. 2.6 4 km SE of Indios, Puerto Rico
  12. 2.1 4 km SE of Indios, Puerto Rico
  13. 2.8 4 km SE of Indios, Puerto Rico
  14. 2.8 1 km WNW of Tallaboa, Puerto Rico
  15. 2.9 4 km SE 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 130,000 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.