QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

0 km NW of Stella, Puerto Rico

· 15 km deep · released about 610 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 1 kmAguada Municipio 9 kmAñasco Municipio 13 kmMoca Municipio 19 kmAguadilla Municipio 20 kmHormigueros Municipio 26 kmSan Sebastián Municipio 30 kmIsabela Municipio 30 kmLas Marías Municipio 31 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 2.9 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 1 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1315 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 610 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 25,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 18,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.6× the energy of this one
  4. This earthquake M 2.9 about 610 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 18.3275, -67.2510. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 1 km (1 mi) S of here earthquakes near Rincón Municipio
Aguada Municipio, PR 9 km (5 mi) SW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 13 km (8 mi) WNW of here earthquakes near Añasco Municipio
Moca Municipio, PR 19 km (12 mi) WSW of here earthquakes near Moca Municipio
Aguadilla Municipio, PR 20 km (13 mi) SSW of here earthquakes near Aguadilla Municipio
Hormigueros Municipio, PR 26 km (16 mi) NNW of here earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 2.3 3 km W of Liborio Negron Torres, Puerto Rico
  2. 2.5 Puerto Rico region
  3. 2.9 1 km NNE of La Playa, Puerto Rico
  4. 2.5 0 km SSE of Lluveras, Puerto Rico
  5. 2.6 Puerto Rico region
  6. 2.6 7 km E of La Parguera, Puerto Rico
  7. 2.5 3 km SE of La Parguera, Puerto Rico
  8. 2.3 3 km ENE of La Parguera, Puerto Rico
  9. 2.6 4 km ESE of Lajas, Puerto Rico
  10. 2.2 2 km NE of La Parguera, Puerto Rico
  11. 3.0 17 km SW of Stella, Puerto Rico
  12. 2.2 5 km ENE of La Parguera, Puerto Rico
  13. 2.2 4 km E of Hormigueros, 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 4.9 on 2020-07-03 — it released about 1,100 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.