QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Corozal, PR

No earthquake was likely felt in Corozal in the 24 hours to 12:54 am AST (04:54 UTC). The last one was M 4.8, 80 km (50 mi) SW, at 9:19 am AST on 18 September 2026, estimated intensity III (weak) in town; 86 felt reports to USGS. Every earthquake near Corozal

This page: a magnitude 2.0 earthquake was recorded 3 km (2 mi) west-northwest of Corozal, PR, at 3:06 am AST on 6 August 2019 (07:06 UTC), 78 km deep.

USGS: 3 km WNW of Corozal, Puerto Rico

31 km (19 mi) WSW of San Juan, PR · 20 km (12 mi) W of Bayamón, PR

3:06 am AST, Aug 6, 2019 · · 78 km deep · released about 26 lb of TNT

Every earthquake near Corozal Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Corozal Municipio 6 kmMorovis Municipio 8 kmVega Alta Municipio 10 kmToa Alta Municipio 11 kmNaranjito Municipio 12 kmVega Baja Municipio 13 kmDorado Municipio 17 kmBarranquitas Municipio 17 kmOrocovis 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
3:06 am AST on 6 August 2019 ()
Where
3 km (2 mi) west-northwest of Corozal, PR · earthquakes near Corozal
Magnitude
M 2.0 (md)
Depth
78 km below the surface
Felt
no reports yet
Nearest
Corozal Municipio, 6 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2655 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Corozal, 3 km away, the estimate is intensity I (not felt). 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: Miranda, Morovis, Vega Alta, H. Rivera Colon, Franquez, Galateo.

How big was it?

This earthquake released about 26 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 580,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 410,000× the energy of this one
  3. Around the size people start to feel M 3.0 36× the energy of this one
  4. This earthquake M 2.0 about 26 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 2019-03-12 — about 9,100 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.8 12 km N of Garrochales, Puerto Rico · 33 km NW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 25 km ESE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 17 km N 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 18.3495, -66.3483. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Corozal Municipio, PR 6 km (3 mi) SSE earthquakes near Corozal Municipio
Morovis Municipio, PR 8 km (5 mi) WSW earthquakes near Morovis Municipio
Vega Alta Municipio, PR 10 km (6 mi) N earthquakes near Vega Alta Municipio
Toa Alta Municipio, PR 11 km (7 mi) E earthquakes near Toa Alta Municipio
Naranjito Municipio, PR 12 km (7 mi) ESE earthquakes near Naranjito Municipio
Vega Baja Municipio, PR 13 km (8 mi) NNW earthquakes near Vega Baja Municipio

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

Aftershocks so far

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

  1. 2.0 1 km SE of Santa Isabel, Puerto Rico
  2. 2.5 16 km N of San Juan, Puerto Rico
  3. 2.0 1 km S of Manatí, Puerto Rico
  4. 1.7 4 km ESE of Ponce, Puerto Rico
  5. 1.6 2 km SSE of Ponce, Puerto Rico
  6. 1.5 5 km WSW of Naranjito, Puerto Rico
  7. 1.9 2 km S of Adjuntas, Puerto Rico
  8. 1.6 2 km SE of Santa Isabel, Puerto Rico
  9. 1.9 19 km N of Garrochales, Puerto Rico
  10. 2.1 22 km N of Tierras Nuevas Poniente, Puerto Rico
  11. 2.5 22 km N of Tierras Nuevas Poniente, Puerto Rico
  12. 2.8 2 km ESE of Levittown, Puerto Rico
  13. 2.2 1 km S of Río Cañas Abajo, Puerto Rico
  14. 2.5 1 km S of Cataño, Puerto Rico
  15. 2.1 21 km NNE of Tierras Nuevas Poniente, 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.