QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

7 km NNE of Yauco, Puerto Rico

· 18 km deep · released about 49 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yauco Municipio 3 kmGuayanilla Municipio 11 kmSabana Grande Municipio 12 kmAdjuntas Municipio 12 kmMaricao Municipio 14 kmPeñuelas Municipio 14 kmGuánica Municipio 19 kmLares Municipio 20 kmLas Marías 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 2.1 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 3 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1005 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 49 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 18.0973, -66.8355. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yauco Municipio, PR 3 km (2 mi) ENE of here earthquakes near Yauco Municipio
Guayanilla Municipio, PR 11 km (7 mi) NNW of here earthquakes near Guayanilla Municipio
Sabana Grande Municipio, PR 12 km (7 mi) E of here earthquakes near Sabana Grande Municipio
Adjuntas Municipio, PR 12 km (8 mi) SW of here earthquakes near Adjuntas Municipio
Maricao Municipio, PR 14 km (8 mi) SE of here earthquakes near Maricao Municipio
Peñuelas Municipio, PR 14 km (9 mi) NW of here earthquakes near Peñuelas Municipio

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

Aftershocks so far

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

  1. 2.3 1 km SSE of Maria Antonia, Puerto Rico
  2. 2.2 17 km S of Indios, Puerto Rico
  3. 2.8 6 km ENE of La Parguera, Puerto Rico
  4. 2.4 5 km S of Indios, Puerto Rico
  5. 2.1 9 km SSE of Indios, Puerto Rico
  6. 1.9 0 km SSE of Indios, Puerto Rico
  7. 2.5 12 km SSE of Guánica, Puerto Rico
  8. 2.2 2 km WSW of Indios, Puerto Rico
  9. 2.3 6 km NNE of Yauco, Puerto Rico
  10. 2.4 2 km SSW of Indios, Puerto Rico
  11. 2.6 3 km SSW of Peñuelas, Puerto Rico
  12. 2.0 5 km SSE of Maria Antonia, Puerto Rico
  13. 2.2 5 km SE of Indios, Puerto Rico
  14. 1.7 2 km NNW of La Parguera, Puerto Rico
  15. 2.3 5 km SE of Maria Antonia, 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 2,500,000 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.