QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

4 km SSE of Moca, Puerto Rico

· 11 km deep · released about 130 lb of TNT

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10 km30 km60 km120 km N Moca Municipio 3 kmAñasco Municipio 9 kmAguada Municipio 9 kmSan Sebastián Municipio 14 kmAguadilla Municipio 14 kmRincón Municipio 16 kmIsabela Municipio 17 kmLas Marías Municipio 19 kmQuebradillas 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
11 km below the surface
Felt
no reports yet
Nearest
Moca Municipio, 3 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1999 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 130 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 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 83,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.4× the energy of this one
  4. This earthquake M 2.4 about 130 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 18.3580, -67.0986. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Moca Municipio, PR 3 km (2 mi) SW of here earthquakes near Moca Municipio
Añasco Municipio, PR 9 km (5 mi) NNE of here earthquakes near Añasco Municipio
Aguada Municipio, PR 9 km (6 mi) ESE of here earthquakes near Aguada Municipio
San Sebastián Municipio, PR 14 km (9 mi) WNW of here earthquakes near San Sebastián Municipio
Aguadilla Municipio, PR 14 km (9 mi) SSE of here earthquakes near Aguadilla Municipio
Rincón Municipio, PR 16 km (10 mi) E of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 1.6 5 km ESE of La Parguera, Puerto Rico
  2. 1.8 2 km W of Guánica, Puerto Rico
  3. 2.4 1 km SE of Guánica, Puerto Rico
  4. 1.7 0 km ESE of Maria Antonia, Puerto Rico
  5. 1.6 4 km WSW of Guánica, Puerto Rico
  6. 1.6 4 km WSW of Guánica, Puerto Rico
  7. 1.6 1 km S of Guánica, Puerto Rico
  8. 1.6 Puerto Rico region
  9. 1.5 7 km WSW of Fuig, Puerto Rico
  10. 1.8 5 km WSW of Fuig, Puerto Rico
  11. 1.6 7 km E of Pole Ojea, Puerto Rico
  12. 1.8 4 km WSW of Guánica, Puerto Rico
  13. 2.0 4 km SW of La Parguera, Puerto Rico
  14. 2.0 Puerto Rico region
  15. 1.7 4 km WSW 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 5.2 on 2020-01-15 — it released about 15,000 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.