QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

Earthquake near Gurabo, PR

No earthquake was likely felt in Gurabo in the 24 hours to 12:53 am AST (04:53 UTC). The last one was M 4.1, 75 km (47 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 Gurabo

This page: a magnitude 2.7 earthquake was recorded 2 km (1 mi) west-northwest of Gurabo, PR, at 5:54 am AST on 4 November 2022 (09:54 UTC), 17 km deep.

USGS: 2 km WNW of Gurabo, Puerto Rico

6 km (4 mi) ENE of Caguas, PR

5:54 am AST, Nov 4, 2022 · · 17 km deep · released about 320 lb of TNT

Every earthquake near Gurabo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Gurabo Municipio 2 kmCaguas Municipio 8 kmTrujillo Alto Municipio 9 kmJuncos Municipio 10 kmSan Lorenzo Municipio 13 kmCanóvanas Municipio 14 kmAguas Buenas Municipio 14 kmLas Piedras Municipio 15 kmCarolina Municipio 16 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
5:54 am AST on 4 November 2022 ()
Where
2 km (1 mi) west-northwest of Gurabo, PR · earthquakes near Gurabo
Magnitude
M 2.7 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Gurabo Municipio, 2 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1469 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 19 km (12 mi) from the epicentre. In Gurabo, 2 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.

Likely felt in: Caguas 7 km, intensity II · Trujillo Alto 11 km, intensity II · Jagual 11 km, intensity II · Carolina 14 km, intensity II · Sumidero 15 km, intensity II · Guaynabo 17 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 320 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 48,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 34,000× the energy of this one
  3. Around the size people start to feel M 3.0 3× the energy of this one
  4. This earthquake M 2.7 about 320 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 760 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 · 15 km W of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 46 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 18.2587, -65.9925. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Gurabo Municipio, PR 2 km (1 mi) NE earthquakes near Gurabo Municipio
Caguas Municipio, PR 8 km (5 mi) SW earthquakes near Caguas Municipio
Trujillo Alto Municipio, PR 9 km (5 mi) N earthquakes near Trujillo Alto Municipio
Juncos Municipio, PR 10 km (6 mi) ESE earthquakes near Juncos Municipio
San Lorenzo Municipio, PR 13 km (8 mi) S earthquakes near San Lorenzo Municipio
Canóvanas Municipio, PR 14 km (9 mi) NE earthquakes near Canóvanas 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. 2.7 Puerto Rico region
  2. 3.4 Puerto Rico region
  3. 3.1 3 km E of Celada, Puerto Rico
  4. 2.5 6 km N of Yaurel, Puerto Rico
  5. 3.7 Puerto Rico region
  6. 3.4 5 km SSW of Ramos, Puerto Rico
  7. 3.1 3 km SSW of Cayey, Puerto Rico
  8. 2.6 2 km NNE of Orocovis, Puerto Rico
  9. 2.8 3 km W of Miranda, Puerto Rico
  10. 1.9 9 km SSW of Emajagua, Puerto Rico
  11. 3.1 Puerto Rico region
  12. 2.9 7 km NNW of Dorado, Puerto Rico
  13. 3.0 4 km NW of Corozal, Puerto Rico
  14. 2.8 16 km S of Lamboglia, Puerto Rico
  15. 2.8 Puerto Rico region

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.