QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Comerío, PR

No earthquake was likely felt in Comerío in the 24 hours to 3:45 pm AST (19:45 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 2.6 earthquake was recorded 6 km (4 mi) northeast of Comerío, PR, at 5:45 am AST on 1 June 2018 (09:45 UTC), 59 km deep.

USGS: 6 km NE of Comerío, Puerto Rico

21 km (13 mi) SW of San Juan, PR · 13 km (8 mi) SSW of Bayamón, PR

5:45 am AST, Jun 1, 2018 · · 59 km deep · released about 220 lb of TNT

Every earthquake near Comerío Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Comerío Municipio 5 kmAguas Buenas Municipio 6 kmNaranjito Municipio 8 kmBayamón Municipio 10 kmCidra Municipio 10 kmGuaynabo Municipio 12 kmToa Alta Municipio 13 kmBarranquitas Municipio 14 kmCorozal Municipio 15 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
5:45 am AST on 1 June 2018 ()
Where
6 km (4 mi) northeast of Comerío, PR · earthquakes near Comerío
Magnitude
M 2.6 (md)
Depth
59 km below the surface
Felt
no reports yet
Nearest
Comerío Municipio, 5 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3085 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 Comerío, 6 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: Naranjito, Sumidero, Santa Clara, Aguas Buenas, Cidra, Parcelas La Milagrosa.

How big was it?

This earthquake released about 220 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 68,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 48,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.3× the energy of this one
  4. This earthquake M 2.6 about 220 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

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

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 · 6 km E of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 31 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 18.2611, -66.1886. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Comerío Municipio, PR 5 km (3 mi) SW earthquakes near Comerío Municipio
Aguas Buenas Municipio, PR 6 km (4 mi) E earthquakes near Aguas Buenas Municipio
Naranjito Municipio, PR 8 km (5 mi) WNW earthquakes near Naranjito Municipio
Bayamón Municipio, PR 10 km (6 mi) NNE earthquakes near Bayamón Municipio
Cidra Municipio, PR 10 km (6 mi) SSE earthquakes near Cidra Municipio
Guaynabo Municipio, PR 12 km (8 mi) NE earthquakes near Guaynabo 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. 2.0 1 km N of Bayamon, Puerto Rico
  2. 1.7 8 km NNE of Emajagua, Puerto Rico
  3. 2.7 8 km S of Palo Seco, Puerto Rico
  4. 2.5 7 km E of Jayuya, Puerto Rico
  5. 2.9 5 km NNW of Brenas, Puerto Rico
  6. 1.6 12 km NNW of Brenas, Puerto Rico
  7. 1.6 0 km W of Jobos, Puerto Rico
  8. 2.3 9 km S of Jauca, Puerto Rico
  9. 2.9 20 km NNW of Brenas, Puerto Rico
  10. 2.1 12 km S of Jobos, Puerto Rico
  11. 1.7 1 km SE of Bayamón, Puerto Rico
  12. 1.9 1 km NE of Jauca, Puerto Rico
  13. 2.2 2 km NE of Jauca, Puerto Rico
  14. 2.8 4 km SE of Cataño, Puerto Rico
  15. 2.3 4 km N of Brenas, 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.