QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near Jagual, PR

No earthquake was likely felt in Jagual in the 24 hours to 10:12 am AST (14:12 UTC). The last one was M 4.1, 73 km (45 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 Jagual

This page: a magnitude 3.0 earthquake was recorded in Jagual, PR, at 5:46 pm AST on 14 July 2023 (21:46 UTC), 77 km deep. 3 people have reported feeling it to USGS.

USGS: 1 km E of Jagual, Puerto Rico

10 km (6 mi) SE of Caguas, PR

5:46 pm AST, Jul 14, 2023 · · 77 km deep · released about 1,100 lb of TNT

Every earthquake near Jagual Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Lorenzo Municipio 1 kmCaguas Municipio 9 kmJuncos Municipio 10 kmLas Piedras Municipio 12 kmGurabo Municipio 13 kmYabucoa Municipio 17 kmPatillas Municipio 18 kmAguas Buenas Municipio 19 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
5:46 pm AST on 14 July 2023 ()
Where
in Jagual, PR · earthquakes near Jagual
Magnitude
M 3.0 (md)
Depth
77 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
San Lorenzo Municipio, 1 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1215 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: San Lorenzo, Juncos, Gurabo, Caguas, Las Piedras, Celada.

How big was it?

This earthquake released about 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 320,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 14,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,100 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.6 on 2016-12-05 — about 230 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 NW 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 18.1598, -65.9808. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Lorenzo Municipio, PR 1 km (1 mi) SSE earthquakes near San Lorenzo Municipio
Caguas Municipio, PR 9 km (6 mi) NW earthquakes near Caguas Municipio
Juncos Municipio, PR 10 km (7 mi) NE earthquakes near Juncos Municipio
Las Piedras Municipio, PR 12 km (7 mi) ENE earthquakes near Las Piedras Municipio
Gurabo Municipio, PR 13 km (8 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

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

  1. 2.6 4 km SSE of Salinas, Puerto Rico
  2. 2.4 6 km S of Salinas, Puerto Rico
  3. 2.7 Puerto Rico region
  4. 2.5 4 km SSE of Salinas, Puerto Rico
  5. 2.5 Puerto Rico region
  6. 2.8 1 km SSW of Cidra, Puerto Rico
  7. 2.4 6 km SSE of Salinas, Puerto Rico
  8. 2.3 4 km SSE of Salinas, Puerto Rico
  9. 2.7 6 km SSE of Salinas, Puerto Rico
  10. 2.7 5 km SSE of Salinas, Puerto Rico
  11. 2.5 Puerto Rico region
  12. 2.3 Puerto Rico region
  13. 1.9 6 km SSE of Salinas, Puerto Rico
  14. 3.2 2 km NNW of San Juan, Puerto Rico
  15. 2.6 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.