QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

1 km W of Ponce, Puerto Rico

· 14 km deep · released about 44 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ponce Municipio 3 kmPeñuelas Municipio 10 kmJuana Díaz Municipio 15 kmGuayanilla Municipio 17 kmVillalba Municipio 22 kmJayuya Municipio 23 kmAdjuntas Municipio 23 kmYauco Municipio 25 kmSanta Isabel Municipio 27 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
14 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 3 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1953 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 44 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 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 18.0093, -66.6341. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 3 km (2 mi) WNW of here earthquakes near Ponce Municipio
Peñuelas Municipio, PR 10 km (6 mi) E of here earthquakes near Peñuelas Municipio
Juana Díaz Municipio, PR 15 km (9 mi) W of here earthquakes near Juana Díaz Municipio
Guayanilla Municipio, PR 17 km (11 mi) E of here earthquakes near Guayanilla Municipio
Villalba Municipio, PR 22 km (14 mi) SW of here earthquakes near Villalba Municipio
Jayuya Municipio, PR 23 km (14 mi) SSW of here earthquakes near Jayuya 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. 2.9 3 km WSW of Fuig, Puerto Rico
  2. 2.9 4 km W of Fuig, Puerto Rico
  3. 3.5 3 km WSW of Fuig, Puerto Rico
  4. 2.5 8 km SSW of Guánica, Puerto Rico
  5. 3.1 5 km WSW of La Parguera, Puerto Rico
  6. 2.4 5 km E of La Parguera, Puerto Rico
  7. 3.3 4 km E of La Parguera, Puerto Rico
  8. 2.4 4 km ENE of Tallaboa, Puerto Rico
  9. 2.4 1 km SSE of Guánica, Puerto Rico
  10. 3.0 5 km ESE of La Parguera, Puerto Rico
  11. 2.9 4 km WSW of Fuig, Puerto Rico
  12. 2.9 6 km SSE of Maria Antonia, Puerto Rico
  13. 2.0 7 km SE of Maria Antonia, Puerto Rico
  14. 3.4 3 km NNW of La Parguera, Puerto Rico
  15. 3.4 6 km SW of Guánica, 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 2,700,000 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.