QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Comerío, PR

No earthquake was likely felt in Comerío in the 24 hours to 8:30 am AST (12:30 UTC). The last one was M 3.3, 44 km (27 mi) SSW, at 8:40 am AST on 1 November 2026, estimated intensity II (weak) in town. Every earthquake near Comerío

This page: a magnitude 2.3 earthquake was recorded 3 km (2 mi) east-southeast of Comerío, PR, at 7:48 pm AST on 22 August 2022 (23:48 UTC), 17 km deep.

USGS: 3 km ESE of Comerío, Puerto Rico

27 km (17 mi) SSW of San Juan, PR · 17 km (11 mi) W of Caguas, PR

7:48 pm AST, Aug 22, 2022 · · 17 km deep · released about 77 lb of TNT

Every earthquake near Comerío Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Comerío Municipio 3 kmCidra Municipio 5 kmAguas Buenas Municipio 10 kmAibonito Municipio 10 kmNaranjito Municipio 11 kmBarranquitas Municipio 11 kmCayey Municipio 12 kmCaguas Municipio 16 kmBayamón Municipio 17 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
7:48 pm AST on 22 August 2022 ()
Where
3 km (2 mi) east-southeast of Comerío, PR · earthquakes near Comerío
Magnitude
M 2.3 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Comerío Municipio, 3 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1542 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 10 km (6 mi) from the epicentre. In Comerío, 3 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: Sumidero 8 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 77 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 3,100 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 · 9 km NE of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 36 km NNW 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 18.2022, -66.2010. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Comerío Municipio, PR 3 km (2 mi) NW earthquakes near Comerío Municipio
Cidra Municipio, PR 5 km (3 mi) SE earthquakes near Cidra Municipio
Aguas Buenas Municipio, PR 10 km (6 mi) NE earthquakes near Aguas Buenas Municipio
Aibonito Municipio, PR 10 km (6 mi) SW earthquakes near Aibonito Municipio
Naranjito Municipio, PR 11 km (7 mi) NNW earthquakes near Naranjito Municipio
Barranquitas Municipio, PR 11 km (7 mi) W earthquakes near Barranquitas Municipio

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

Aftershocks so far

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

  1. 2.2 6 km SSW of Potala Pastillo, Puerto Rico
  2. 3.0 5 km SSW of Potala Pastillo, Puerto Rico
  3. 2.8 6 km SSW of Potala Pastillo, Puerto Rico
  4. 2.9 3 km SW of Potala Pastillo, Puerto Rico
  5. 3.0 5 km SSW of Potala Pastillo, Puerto Rico
  6. 2.2 4 km SSW of Capitanejo, Puerto Rico
  7. 3.0 5 km SW of Potala Pastillo, Puerto Rico
  8. 3.4 4 km SSW of Potala Pastillo, Puerto Rico
  9. 3.4 5 km SSW of Potala Pastillo, Puerto Rico
  10. 3.6 5 km E of Candelero Arriba, Puerto Rico
  11. 3.0 11 km NNW of Brenas, Puerto Rico
  12. 2.8 5 km NNW of Dorado, Puerto Rico
  13. 2.2 3 km N of Orocovis, Puerto Rico
  14. 2.3 2 km SE of Lamboglia, Puerto Rico
  15. 2.3 3 km ESE 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.