QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near San Lorenzo, PR

No earthquake was likely felt in San Lorenzo in the 24 hours to 8:42 pm AST (00:42 UTC). The last one was M 4.1, 71 km (44 mi) ESE, at 5:44 am AST on 28 October 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near San Lorenzo

This page: a magnitude 2.6 earthquake was recorded in San Lorenzo, PR, at 1:53 am AST on 24 November 2023 (05:53 UTC), 77 km deep.

USGS: 1 km SSW of San Lorenzo, Puerto Rico

10 km (6 mi) SE of Caguas, PR

1:53 am AST, Nov 24, 2023 · · 77 km deep · released about 280 lb of TNT

Every earthquake near San Lorenzo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Lorenzo Municipio 3 kmJuncos Municipio 8 kmCaguas Municipio 10 kmLas Piedras Municipio 10 kmGurabo Municipio 11 kmYabucoa Municipio 17 kmTrujillo Alto Municipio 18 kmCanóvanas Municipio 19 kmHumacao 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
1:53 am AST on 24 November 2023 ()
Where
in San Lorenzo, PR · earthquakes near San Lorenzo
Magnitude
M 2.6 (md)
Depth
77 km below the surface
Felt
no reports yet
Nearest
San Lorenzo Municipio, 3 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1028 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. 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: Jagual, Juncos, Gurabo, Las Piedras, Celada, Caguas.

How big was it?

This earthquake released about 280 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 53,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 38,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.3× the energy of this one
  4. This earthquake M 2.6 about 280 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.6 on 2016-12-05 — about 840 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 20 km WNW 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 18.1748, -65.9655. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Lorenzo Municipio, PR 3 km (2 mi) SSW earthquakes near San Lorenzo Municipio
Juncos Municipio, PR 8 km (5 mi) NE earthquakes near Juncos Municipio
Caguas Municipio, PR 10 km (6 mi) WNW earthquakes near Caguas Municipio
Las Piedras Municipio, PR 10 km (6 mi) E earthquakes near Las Piedras Municipio
Gurabo Municipio, PR 11 km (7 mi) N earthquakes near Gurabo Municipio
Yabucoa Municipio, PR 17 km (11 mi) SE earthquakes near Yabucoa Municipio

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

Aftershocks so far

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

  1. 1.5 5 km SE of Cayey, Puerto Rico
  2. 2.8 4 km WSW of Central Aguirre, Puerto Rico
  3. 2.1 4 km NW of Orocovis, Puerto Rico
  4. 2.6 4 km NW of Orocovis, Puerto Rico
  5. 3.0 1 km SSE of Corozal, Puerto Rico
  6. 2.2 5 km SSE of Salinas, Puerto Rico
  7. 2.0 6 km SSE of Salinas, Puerto Rico
  8. 2.5 3 km ESE of Orocovis, Puerto Rico
  9. 2.2 6 km SSE of Salinas, Puerto Rico
  10. 2.8 5 km S of Punta Santiago, Puerto Rico
  11. 2.0 5 km SSE of Salinas, Puerto Rico
  12. 2.1 5 km WSW of Central Aguirre, Puerto Rico
  13. 2.1 4 km SSE of Salinas, Puerto Rico
  14. 2.0 5 km SSE of Salinas, Puerto Rico
  15. 2.5 3 km SSE of Salinas, 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.