QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

117 km NNW of San Antonio, Puerto Rico

· 33 km deep · released about 990 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aguadilla Municipio 118 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
33 km below the surface
Felt
no reports yet
Nearest
Aguadilla Municipio, 118 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2959 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 990 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 6.7 340,000× 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 11,000× the energy of this one
  4. This earthquake M 3.0 about 990 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 19.4858, -67.5043. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aguadilla Municipio, PR 118 km (73 mi) NNW of here earthquakes near Aguadilla Municipio
Isabela Municipio, PR 123 km (76 mi) NNW of here earthquakes near Isabela Municipio
Quebradillas Municipio, PR 129 km (80 mi) NNW of here earthquakes near Quebradillas Municipio
Camuy Municipio, PR 134 km (83 mi) NNW of here earthquakes near Camuy Municipio
Hatillo Municipio, PR 138 km (86 mi) NNW of here earthquakes near Hatillo Municipio
Arecibo Municipio, PR 146 km (91 mi) NW of here earthquakes near Arecibo Municipio

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

Aftershocks so far

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

  1. 2.9 80 km NW of San Antonio, Puerto Rico
  2. 3.3 123 km NNE of Punta Cana, Dominican Republic
  3. 2.8 89 km NE of Punta Cana, Dominican Republic
  4. 3.4 111 km NE of Punta Cana, Dominican Republic
  5. 3.3 121 km NNE of Punta Cana, Dominican Republic
  6. 2.8 115 km NNE of Punta Cana, Dominican Republic
  7. 3.3 117 km NE of Punta Cana, Dominican Republic
  8. 2.8 125 km NNE of Punta Cana, Dominican Republic
  9. 2.9 123 km NNE of Punta Cana, Dominican Republic
  10. 3.1 114 km NNE of Punta Cana, Dominican Republic
  11. 3.0 91 km NE of Punta Cana, Dominican Republic
  12. 3.0 92 km N of Isabela, Puerto Rico
  13. 3.2 93 km NE of Punta Cana, Dominican Republic
  14. 3.1 118 km NNE of Punta Cana, Dominican Republic
  15. 3.0 86 km NW of San Antonio, 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 4.2 on 2017-08-27 — it released about 57 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.