QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

2 km NNE of San Lorenzo, Puerto Rico

· 13 km deep · released about 5.7 lb of TNT

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10 km30 km60 km120 km N Juncos Municipio 5 kmGurabo Municipio 7 kmSan Lorenzo Municipio 7 kmLas Piedras Municipio 9 kmCaguas Municipio 10 kmTrujillo Alto Municipio 15 kmCanóvanas Municipio 15 kmAguas Buenas Municipio 19 kmYabucoa 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 1.5 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Juncos Municipio, 5 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2693 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 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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 18.2108, -65.9535. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Juncos Municipio, PR 5 km (3 mi) WSW of here earthquakes near Juncos Municipio
Gurabo Municipio, PR 7 km (5 mi) SSE of here earthquakes near Gurabo Municipio
San Lorenzo Municipio, PR 7 km (5 mi) NNE of here earthquakes near San Lorenzo Municipio
Las Piedras Municipio, PR 9 km (6 mi) WNW of here earthquakes near Las Piedras Municipio
Caguas Municipio, PR 10 km (6 mi) E of here earthquakes near Caguas Municipio
Trujillo Alto Municipio, PR 15 km (9 mi) SSE of here earthquakes near Trujillo Alto Municipio

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

Aftershocks so far

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

  1. 1.5 1 km WSW of Vázquez, Puerto Rico
  2. 1.5 1 km ENE of Jobos, Puerto Rico
  3. 1.5 5 km SSW of Emajagua, Puerto Rico
  4. 2.0 3 km SSE of Salinas, Puerto Rico
  5. 2.7 3 km E of Ceiba, Puerto Rico
  6. 2.1 9 km NNW of Levittown, Puerto Rico
  7. 1.9 20 km NNE of Luquillo, Puerto Rico
  8. 1.5 1 km NNE of Jobos, Puerto Rico
  9. 1.7 24 km SE of Emajagua, Puerto Rico
  10. 2.1 7 km S of Salinas, Puerto Rico
  11. 2.5 22 km SE of Emajagua, Puerto Rico
  12. 2.0 24 km SSE of Emajagua, Puerto Rico
  13. 2.1 2 km ENE of Celada, Puerto Rico
  14. 1.8 11 km NNW of San Juan, Puerto Rico
  15. 1.8 27 km SE of Emajagua, 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 42,000 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.