QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4Md

3 km NNW of Jagual, Puerto Rico

· 9.0 km deep · released about 120 lb of TNT

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10 km30 km60 km120 km N San Lorenzo Municipio 6 kmCaguas Municipio 6 kmGurabo Municipio 9 kmJuncos Municipio 11 kmLas Piedras Municipio 14 kmAguas Buenas Municipio 15 kmTrujillo Alto Municipio 16 kmCidra Municipio 17 kmCayey Municipio 19 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
9.0 km below the surface
Felt
no reports yet
Nearest
San Lorenzo Municipio, 6 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3630 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 120 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 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 18.1905, -66.0019. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Lorenzo Municipio, PR 6 km (3 mi) NNW of here earthquakes near San Lorenzo Municipio
Caguas Municipio, PR 6 km (4 mi) ESE of here earthquakes near Caguas Municipio
Gurabo Municipio, PR 9 km (6 mi) SSW of here earthquakes near Gurabo Municipio
Juncos Municipio, PR 11 km (7 mi) WSW of here earthquakes near Juncos Municipio
Las Piedras Municipio, PR 14 km (9 mi) W of here earthquakes near Las Piedras Municipio
Aguas Buenas Municipio, PR 15 km (9 mi) ESE of here earthquakes near Aguas Buenas Municipio

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

Aftershocks so far

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

  1. 3.0 1 km S of Campanilla, Puerto Rico
  2. 3.0 24 km SW of Esperanza, Puerto Rico
  3. 2.1 1 km WSW of Río Blanco, Puerto Rico
  4. 1.9 1 km NE of Río Blanco, Puerto Rico
  5. 2.3 1 km N of Antón Ruiz, Puerto Rico
  6. 1.9 5 km N of Suárez, Puerto Rico
  7. 1.8 2 km ENE of Vieques, Puerto Rico
  8. 3.0 25 km SW of Esperanza, Puerto Rico
  9. 2.8 24 km SW of Esperanza, Puerto Rico
  10. 1.9 21 km SW of Esperanza, Puerto Rico
  11. 2.9 24 km SW of Esperanza, Puerto Rico
  12. 2.9 23 km SW of Esperanza, Puerto Rico
  13. 2.1 26 km SE of El Negro, Puerto Rico
  14. 1.8 2 km N of Vieques, Puerto Rico
  15. 2.9 23 km SW of Esperanza, 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

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