QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Puerto Rico region

· 14 km deep · released about 100 lb of TNT

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10 km30 km60 km120 km N Caguas Municipio 3 kmGurabo Municipio 7 kmSan Lorenzo Municipio 11 kmAguas Buenas Municipio 11 kmTrujillo Alto Municipio 12 kmJuncos Municipio 13 kmCidra Municipio 15 kmGuaynabo Municipio 16 kmLas Piedras Municipio 17 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
14 km below the surface
Felt
no reports yet
Nearest
Caguas Municipio, 3 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2762 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 100 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 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.4× the energy of this one
  4. This earthquake M 2.4 about 100 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 18.2288, -66.0308. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caguas Municipio, PR 3 km (2 mi) NE of here earthquakes near Caguas Municipio
Gurabo Municipio, PR 7 km (4 mi) SW of here earthquakes near Gurabo Municipio
San Lorenzo Municipio, PR 11 km (7 mi) NNW of here earthquakes near San Lorenzo Municipio
Aguas Buenas Municipio, PR 11 km (7 mi) ESE of here earthquakes near Aguas Buenas Municipio
Trujillo Alto Municipio, PR 12 km (8 mi) SSW of here earthquakes near Trujillo Alto Municipio
Juncos Municipio, PR 13 km (8 mi) W of here earthquakes near Juncos 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. 1.9 0 km SSE of Jobos, Puerto Rico
  2. 1.5 1 km E of Jobos, Puerto Rico
  3. 2.2 7 km WNW of Palomas, Puerto Rico
  4. 1.8 3 km ENE of Jobos, Puerto Rico
  5. 1.9 0 km NNE of Jobos, Puerto Rico
  6. 1.8 1 km ESE of Jobos, Puerto Rico
  7. 1.6 3 km ESE of La Plena, Puerto Rico
  8. 1.5 3 km ENE of La Plena, Puerto Rico
  9. 1.9 0 km NNE of Jobos, Puerto Rico
  10. 2.8 0 km SSE of Jobos, Puerto Rico
  11. 2.7 0 km S of Jobos, Puerto Rico
  12. 1.8 1 km WSW of Jauca, Puerto Rico
  13. 1.7 0 km NNW of Jobos, Puerto Rico
  14. 1.6 2 km E of Jobos, Puerto Rico
  15. 1.7 3 km SE of Jauca, 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 4.6 on 2016-12-05 — it released about 2,400 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.