QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

1 km SE of Moca, Puerto Rico

· 19 km deep · released about 150 lb of TNT

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10 km30 km60 km120 km N Moca Municipio 2 kmAguada Municipio 9 kmAñasco Municipio 11 kmAguadilla Municipio 12 kmIsabela Municipio 14 kmSan Sebastián Municipio 15 kmRincón Municipio 17 kmQuebradillas Municipio 20 kmLas Marías 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 2.5 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Moca Municipio, 2 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3419 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 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 99,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 70,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.2× the energy of this one
  4. This earthquake M 2.5 about 150 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 18.3840, -67.0983. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Moca Municipio, PR 2 km (1 mi) WNW of here earthquakes near Moca Municipio
Aguada Municipio, PR 9 km (6 mi) E of here earthquakes near Aguada Municipio
Añasco Municipio, PR 11 km (7 mi) NNE of here earthquakes near Añasco Municipio
Aguadilla Municipio, PR 12 km (7 mi) SSE of here earthquakes near Aguadilla Municipio
Isabela Municipio, PR 14 km (9 mi) SW of here earthquakes near Isabela Municipio
San Sebastián Municipio, PR 15 km (9 mi) WNW of here earthquakes near San Sebastián Municipio

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

Aftershocks so far

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

  1. 2.2 4 km ENE of Mayagüez, Puerto Rico
  2. 2.2 13 km W of Rincón, Puerto Rico
  3. 1.5 3 km S of Palmarejo, Puerto Rico
  4. 2.1 Mona Passage
  5. 2.2 14 km WNW of Puerto Real, Puerto Rico
  6. 2.7 10 km NNW of San Antonio, Puerto Rico
  7. 2.4 1 km ENE of Mayagüez, Puerto Rico
  8. 2.1 17 km SW of Stella, Puerto Rico
  9. 2.6 7 km WNW of Rincón, Puerto Rico
  10. 2.3 22 km SW of Stella, Puerto Rico
  11. 1.8 3 km SSW of Cabo Rojo, Puerto Rico
  12. 1.9 24 km SW of Stella, Puerto Rico
  13. 1.9 13 km WNW of Puerto Real, Puerto Rico
  14. 2.6 0 km NNE of Lajas, Puerto Rico
  15. 2.0 10 km NW of Puerto Real, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.