QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Jagual, PR

No earthquake was likely felt in Jagual in the 24 hours to 1:43 pm AST (17:43 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 2.6 earthquake was recorded 6 km (4 mi) west-northwest of Jagual, PR, at 12:42 am AST on 31 July 2022 (04:42 UTC), 11 km deep.

USGS: 5 km WNW of Jagual, Puerto Rico

6 km (4 mi) S of Caguas, PR

12:42 am AST, Jul 31, 2022 · · 11 km deep · released about 270 lb of TNT

Every earthquake near Jagual Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caguas Municipio 3 kmSan Lorenzo Municipio 8 kmAguas Buenas Municipio 12 kmGurabo Municipio 12 kmCidra Municipio 12 kmCayey Municipio 14 kmJuncos Municipio 15 kmTrujillo Alto Municipio 18 kmLas Piedras Municipio 18 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
12:42 am AST on 31 July 2022 ()
Where
6 km (4 mi) west-northwest of Jagual, PR · earthquakes near Jagual
Magnitude
M 2.6 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Caguas Municipio, 3 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1565 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, people at rest would likely notice it out to about 21 km (13 mi) from the epicentre. In Jagual, 6 km away, the estimate is intensity III (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.

Likely felt in: Jagual 6 km, intensity III · Caguas 6 km, intensity III · Sumidero 10 km, intensity II · Cayey 15 km, intensity II · Trujillo Alto 20 km, intensity II · Guaynabo 21 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 270 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 57,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 40,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.6× the energy of this one
  4. This earthquake M 2.6 about 270 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 900 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 13 km NW of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 47 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 18.1812, -66.0453. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Caguas Municipio, PR 3 km (2 mi) N earthquakes near Caguas Municipio
San Lorenzo Municipio, PR 8 km (5 mi) ESE earthquakes near San Lorenzo Municipio
Aguas Buenas Municipio, PR 12 km (8 mi) NW earthquakes near Aguas Buenas Municipio
Gurabo Municipio, PR 12 km (8 mi) NNE earthquakes near Gurabo Municipio
Cidra Municipio, PR 12 km (8 mi) W earthquakes near Cidra Municipio
Cayey Municipio, PR 14 km (9 mi) SW earthquakes near Cayey Municipio

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

Aftershocks so far

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

  1. 3.6 5 km E of Candelero Arriba, Puerto Rico
  2. 2.8 5 km NNW of Dorado, Puerto Rico
  3. 2.2 3 km N of Orocovis, Puerto Rico
  4. 2.3 2 km SE of Lamboglia, Puerto Rico
  5. 2.3 3 km ESE of Salinas, Puerto Rico
  6. 1.9 2 km SSE of Lamboglia, Puerto Rico
  7. 3.6 1 km NNW of San José, Puerto Rico
  8. 3.0 3 km ESE of Cayey, Puerto Rico
  9. 3.0 3 km E of Cayey, Puerto Rico
  10. 1.8 2 km SW of G. L. Garcia, Puerto Rico
  11. 2.1 3 km ENE of Mariano Colón, Puerto Rico
  12. 2.5 6 km NNW of Los Llanos, Puerto Rico
  13. 2.7 4 km SE of Morovis, Puerto Rico
  14. 3.1 1 km E of Salinas, Puerto Rico
  15. 3.8 5 km ENE of San Juan, 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.