QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

4 km NW of Corozal, Puerto Rico

· 60 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Vega Alta Municipio 7 kmCorozal Municipio 8 kmMorovis Municipio 10 kmToa Alta Municipio 10 kmVega Baja Municipio 11 kmNaranjito Municipio 13 kmDorado Municipio 14 kmManatí Municipio 18 kmToa Baja Municipio 19 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
Magnitude
M 3.0 (md)
Depth
60 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Vega Alta Municipio, 7 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1362 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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.

Where

Epicentre 18.3698, -66.3430. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vega Alta Municipio, PR 7 km (5 mi) S of here earthquakes near Vega Alta Municipio
Corozal Municipio, PR 8 km (5 mi) NNW of here earthquakes near Corozal Municipio
Morovis Municipio, PR 10 km (6 mi) NE of here earthquakes near Morovis Municipio
Toa Alta Municipio, PR 10 km (6 mi) W of here earthquakes near Toa Alta Municipio
Vega Baja Municipio, PR 11 km (7 mi) SSE of here earthquakes near Vega Baja Municipio
Naranjito Municipio, PR 13 km (8 mi) NW of here earthquakes near Naranjito Municipio

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

Aftershocks so far

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

  1. 2.2 3 km ENE of Carrizales, Puerto Rico
  2. 3.1 3 km SSW of Cayey, Puerto Rico
  3. 2.6 2 km NNE of Orocovis, Puerto Rico
  4. 2.6 24 km NNE of Dorado, Puerto Rico
  5. 2.8 3 km W of Miranda, Puerto Rico
  6. 2.9 7 km NNW of Dorado, Puerto Rico
  7. 2.6 20 km N 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.