QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

Earthquake near Suárez, PR

No earthquake was likely felt in Suárez in the 24 hours to 6:40 am AST (10:40 UTC). The last one was M 4.1, 76 km (47 mi) SE, at 5:44 am AST on 28 October 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Suárez

This page: a magnitude 3.2 earthquake was recorded 18 km (11 mi) north of Suárez, PR, at 4:41 am AST on 22 July 2022 (08:41 UTC), 69 km deep. 1 person has reported feeling it to USGS.

USGS: 18 km N of Suárez, Puerto Rico

31 km (19 mi) NE of San Juan, PR · 24 km (15 mi) NE of Carolina, PR

4:41 am AST, Jul 22, 2022 · · 69 km deep · released about 1.1 tons of TNT

Every earthquake near Suárez Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 19 kmRío Grande Municipio 25 kmCarolina Municipio 25 kmLuquillo Municipio 29 kmCanóvanas Municipio 30 kmSan Juan Municipio 30 kmTrujillo Alto Municipio 33 kmCataño Municipio 36 kmFajardo Municipio 36 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
4:41 am AST on 22 July 2022 ()
Where
18 km (11 mi) north of Suárez, PR · earthquakes near Suárez
Magnitude
M 3.2 (md)
Depth
69 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Loíza Municipio, 19 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1573 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 Suárez, 18 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: Loíza, Vieques, San Isidro, Santa Barbara, Río Grande, La Dolores.

How big was it?

This earthquake released about 1.1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 160,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,200× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,100× the energy of this one
  4. This earthquake M 3.2 about 1.1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.2× 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 · 48 km SW 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 18.5947, -65.8502. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Loíza Municipio, PR 19 km (12 mi) SSW earthquakes near Loíza Municipio
Río Grande Municipio, PR 25 km (15 mi) SSE earthquakes near Río Grande Municipio
Carolina Municipio, PR 25 km (16 mi) SSW earthquakes near Carolina Municipio
Luquillo Municipio, PR 29 km (18 mi) SSE earthquakes near Luquillo Municipio
Canóvanas Municipio, PR 30 km (18 mi) S earthquakes near Canóvanas Municipio
San Juan Municipio, PR 30 km (19 mi) SW earthquakes near San Juan Municipio

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

Aftershocks so far

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

  1. 3.4 25 km NNE of Playa Fortuna, Puerto Rico
  2. 3.2 5 km ESE of Pájaros, Puerto Rico
  3. 3.2 31 km NNE of Dorado, Puerto Rico
  4. 3.4 30 km NNE of Vieques, Puerto Rico
  5. 2.6 2 km NW of Punta Santiago, Puerto Rico
  6. 2.7 2 km NW of Punta Santiago, Puerto Rico
  7. 2.9 Puerto Rico region
  8. 3.4 42 km NNE of Luquillo, Puerto Rico
  9. 3.3 3 km SSE of Pájaros, Puerto Rico
  10. 2.3 2 km NNW of Punta Santiago, Puerto Rico
  11. 3.4 59 km N of San Juan, Puerto Rico
  12. 2.7 2 km WNW of Gurabo, Puerto Rico
  13. 3.3 34 km N of San Juan, Puerto Rico
  14. 2.3 4 km W of Las Piedras, Puerto Rico
  15. 3.3 5 km NW of Aguas Buenas, 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.