QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

1 km NNW of Moca, Puerto Rico

· 102 km deep · released about 220 lb of TNT

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10 km30 km60 km120 km N Moca Municipio 5 kmAguada Municipio 8 kmAguadilla Municipio 8 kmAñasco Municipio 14 kmIsabela Municipio 14 kmRincón Municipio 16 kmSan Sebastián Municipio 18 kmQuebradillas Municipio 21 kmLas Marías Municipio 25 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 2.6 (md)
Depth
102 km below the surface
Felt
no reports yet
Nearest
Moca Municipio, 5 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2567 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 220 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 70,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 50,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.4× the energy of this one
  4. This earthquake M 2.6 about 220 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 18.4088, -67.1178. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Moca Municipio, PR 5 km (3 mi) NW of here earthquakes near Moca Municipio
Aguada Municipio, PR 8 km (5 mi) ENE of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 8 km (5 mi) SSE of here earthquakes near Aguadilla Municipio
Añasco Municipio, PR 14 km (8 mi) N of here earthquakes near Añasco Municipio
Isabela Municipio, PR 14 km (9 mi) SW of here earthquakes near Isabela Municipio
Rincón Municipio, PR 16 km (10 mi) ENE of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 2.1 19 km NW of San Antonio, Puerto Rico
  2. 2.6 42 km NW of San Antonio, Puerto Rico
  3. 2.9 10 km NNW of Camuy, Puerto Rico
  4. 2.2 24 km N of San Antonio, Puerto Rico
  5. 1.8 1 km E of Lluveras, Puerto Rico
  6. 1.6 4 km ESE of Boquerón, Puerto Rico
  7. 2.0 1 km SE of Maricao, Puerto Rico
  8. 2.2 3 km ESE of Maricao, Puerto Rico
  9. 2.1 20 km SW of Stella, Puerto Rico
  10. 1.9 2 km SSE of Mayagüez, Puerto Rico
  11. 2.6 35 km WNW of San Antonio, Puerto Rico
  12. 2.1 7 km SE of Espino, Puerto Rico
  13. 2.6 27 km W of Rincón, Puerto Rico
  14. 1.6 6 km WSW of Liborio Negron Torres, Puerto Rico
  15. 1.9 4 km WNW of La Parguera, 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 4.3 on 2019-09-05 — it released about 390 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.