QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

5 km SW of San Antonio, Puerto Rico

· 20 km deep · released about 36 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Isabela Municipio 7 kmQuebradillas Municipio 8 kmSan Sebastián Municipio 10 kmMoca Municipio 10 kmCamuy Municipio 14 kmAguadilla Municipio 17 kmLares Municipio 20 kmHatillo Municipio 21 kmAñasco 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 2.0 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Isabela Municipio, 7 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2769 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 36 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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 18.4201, -66.9913. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Isabela Municipio, PR 7 km (5 mi) SSE of here earthquakes near Isabela Municipio
Quebradillas Municipio, PR 8 km (5 mi) SW of here earthquakes near Quebradillas Municipio
San Sebastián Municipio, PR 10 km (6 mi) NNW of here earthquakes near San Sebastián Municipio
Moca Municipio, PR 10 km (6 mi) ENE of here earthquakes near Moca Municipio
Camuy Municipio, PR 14 km (9 mi) WSW of here earthquakes near Camuy Municipio
Aguadilla Municipio, PR 17 km (11 mi) ESE of here earthquakes near Aguadilla Municipio

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

Aftershocks so far

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

  1. 2.0 Puerto Rico region
  2. 2.4 3 km NW of Aguadilla, Puerto Rico
  3. 2.1 28 km WNW of Aguadilla, Puerto Rico
  4. 1.7 9 km SSW of La Playa, Puerto Rico
  5. 1.9 0 km SSW of Adjuntas, Puerto Rico
  6. 2.1 1 km S of Adjuntas, Puerto Rico
  7. 2.1 1 km S of Adjuntas, Puerto Rico
  8. 1.6 1 km NNW of Monte Grande, Puerto Rico
  9. 2.5 11 km N of Arecibo, Puerto Rico
  10. 2.2 5 km N of San Germán, Puerto Rico
  11. 2.1 1 km SE of Espino, Puerto Rico
  12. 2.8 30 km NNE of Carrizales, Puerto Rico
  13. 2.1 9 km ESE of Maricao, Puerto Rico
  14. 2.1 5 km NNE of Lluveras, Puerto Rico
  15. 2.5 0 km NNE of Monte Grande, 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 4.3 on 2017-10-14 — it released about 2,400 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.