QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3md

Earthquake near La Luisa, PR

No earthquake was likely felt in La Luisa in the 24 hours to 10:48 pm AST (02:48 UTC). The last one was M 2.9, 16 km (10 mi) NW, at 2:05 am AST on 13 October 2026, estimated intensity II (weak) in town. Every earthquake near La Luisa

This page: a magnitude 3.3 earthquake was recorded 3 km (2 mi) north-northwest of La Luisa, PR, at 8:15 am AST on 24 November 2024 (12:15 UTC), 112 km deep.

USGS: 2 km NNW of La Luisa, Puerto Rico

49 km (30 mi) W of San Juan, PR · 23 km (14 mi) E of Arecibo, PR

8:15 am AST, Nov 24, 2024 · · 112 km deep · released about 1.5 tons of TNT

Every earthquake near La Luisa Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 4 kmManatí Municipio 4 kmFlorida Municipio 12 kmVega Baja Municipio 13 kmArecibo Municipio 17 kmCiales Municipio 19 kmVega Alta Municipio 20 kmMorovis Municipio 20 kmDorado Municipio 27 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
8:15 am AST on 24 November 2024 ()
Where
3 km (2 mi) north-northwest of La Luisa, PR · earthquakes near La Luisa
Magnitude
M 3.3 (md)
Depth
112 km below the surface
Felt
no reports yet
Nearest
Barceloneta Municipio, 4 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 650 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In La Luisa, 3 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Barceloneta, Tierras Nuevas Poniente, Imbery, Garrochales, Manatí, Bufalo.

How big was it?

This earthquake released about 1.5 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 110,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,100× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,600× the energy of this one
  4. This earthquake M 3.3 about 1.5 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 3.1× more

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.

For this area

The largest earthquake within 50 km since 2016 was M 4.4 on 2018-12-09 — about 40 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.8 12 km N of Garrochales, Puerto Rico · 11 km NNW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 47 km ESE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 19 km E of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 18.4697, -66.5208. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Barceloneta Municipio, PR 4 km (2 mi) W earthquakes near Barceloneta Municipio
Manatí Municipio, PR 4 km (2 mi) SE earthquakes near Manatí Municipio
Florida Municipio, PR 12 km (7 mi) SSW earthquakes near Florida Municipio
Vega Baja Municipio, PR 13 km (8 mi) E earthquakes near Vega Baja Municipio
Arecibo Municipio, PR 17 km (10 mi) WSW earthquakes near Arecibo Municipio
Ciales Municipio, PR 19 km (12 mi) S earthquakes near Ciales 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. 1.6 3 km S of Utuado, Puerto Rico
  2. 2.6 3 km ESE of Corcovado, Puerto Rico
  3. 2.8 31 km N of Brenas, Puerto Rico
  4. 2.1 2 km WNW of Río Cañas Abajo, Puerto Rico
  5. 3.0 36 km N of Hatillo, Puerto Rico
  6. 2.3 2 km NNW of Río Cañas Abajo, Puerto Rico
  7. 2.1 2 km NNW of Río Cañas Abajo, Puerto Rico
  8. 3.2 2 km WSW of Río Cañas Abajo, Puerto Rico
  9. 2.4 3 km NW of Orocovis, Puerto Rico
  10. 3.2 16 km NNE of Carrizales, Puerto Rico
  11. 2.8 3 km W of Orocovis, Puerto Rico
  12. 2.0 3 km NW of Orocovis, Puerto Rico
  13. 3.0 27 km NNE of Brenas, Puerto Rico
  14. 2.2 4 km NW of Orocovis, Puerto Rico
  15. 2.9 12 km NE of Isabela, 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.