QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

8 km ESE of Adjuntas, Puerto Rico

· 18 km deep · released about 140 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jayuya Municipio 10 kmAdjuntas Municipio 13 kmPeñuelas Municipio 15 kmPonce Municipio 15 kmUtuado Municipio 16 kmVillalba Municipio 18 kmGuayanilla Municipio 22 kmJuana Díaz Municipio 22 kmCiales Municipio 22 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 2.4 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Jayuya Municipio, 10 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 613 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 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 78,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.9× the energy of this one
  4. This earthquake M 2.4 about 140 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 18.1357, -66.6443. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jayuya Municipio, PR 10 km (6 mi) SW of here earthquakes near Jayuya Municipio
Adjuntas Municipio, PR 13 km (8 mi) ESE of here earthquakes near Adjuntas Municipio
Peñuelas Municipio, PR 15 km (9 mi) NE of here earthquakes near Peñuelas Municipio
Ponce Municipio, PR 15 km (10 mi) NNW of here earthquakes near Ponce Municipio
Utuado Municipio, PR 16 km (10 mi) SSE of here earthquakes near Utuado Municipio
Villalba Municipio, PR 18 km (11 mi) W of here earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 2.0 3 km SSE of Maria Antonia, Puerto Rico
  2. 2.5 5 km WSW of Guánica, Puerto Rico
  3. 2.3 8 km SSE of Guánica, Puerto Rico
  4. 2.3 2 km SE of Maricao, Puerto Rico
  5. 2.7 2 km NNW of Coco, Puerto Rico
  6. 2.0 7 km SW of Guánica, Puerto Rico
  7. 2.0 3 km NE of Lluveras, Puerto Rico
  8. 2.2 16 km SSE of Guánica, Puerto Rico
  9. 2.5 2 km NE of Maria Antonia, Puerto Rico
  10. 1.8 2 km WNW of Indios, Puerto Rico
  11. 2.5 3 km WSW of Fuig, Puerto Rico
  12. 2.3 4 km SW of Guánica, Puerto Rico
  13. 2.2 1 km ENE of Magas Arriba, Puerto Rico
  14. 2.1 6 km WSW of Fuig, Puerto Rico
  15. 2.8 8 km SSE 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 870,000 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.