QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near Ingenio, PR

No earthquake was likely felt in Ingenio in the 24 hours to 12:59 pm AST (16:59 UTC). The last one was M 4.8, 94 km (59 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 Ingenio

This page: a magnitude 3.0 earthquake was recorded in Ingenio, PR, at 9:40 pm AST on 16 March 2018 (01:40 UTC), 117 km deep.

USGS: 1 km N of Ingenio, Puerto Rico

18 km (11 mi) WNW of San Juan, PR · 11 km (7 mi) NW of Bayamón, PR

9:40 pm AST, Mar 16, 2018 · · 117 km deep · released about 860 lb of TNT

Every earthquake near Ingenio Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Toa Baja Municipio 4 kmDorado Municipio 4 kmCataño Municipio 9 kmToa Alta Municipio 11 kmVega Alta Municipio 12 kmBayamón Municipio 14 kmSan Juan Municipio 17 kmGuaynabo Municipio 18 kmVega Baja Municipio 18 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
9:40 pm AST on 16 March 2018 ()
Where
in Ingenio, PR · earthquakes near Ingenio
Magnitude
M 3.0 (md)
Depth
117 km below the surface
Felt
no reports yet
Nearest
Toa Baja Municipio, 4 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3075 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. 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: Toa Baja, Dorado, Campanilla, Candelaria Arenas, Levittown, Sabana Seca.

How big was it?

This earthquake released about 860 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 6.7 390,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 860 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 3 earthquakes of M5 or more within 50 km:

  1. 5.8 12 km N of Garrochales, Puerto Rico · 37 km WNW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 24 km SSE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 13 km WNW 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 18.4593, -66.2293. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Toa Baja Municipio, PR 4 km (2 mi) E earthquakes near Toa Baja Municipio
Dorado Municipio, PR 4 km (2 mi) WNW earthquakes near Dorado Municipio
Cataño Municipio, PR 9 km (5 mi) E earthquakes near Cataño Municipio
Toa Alta Municipio, PR 11 km (7 mi) S earthquakes near Toa Alta Municipio
Vega Alta Municipio, PR 12 km (7 mi) WSW earthquakes near Vega Alta Municipio
Bayamón Municipio, PR 14 km (9 mi) SSE earthquakes near Bayamón 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. 1.9 3 km NNE of Río Cañas Abajo, Puerto Rico
  2. 2.5 27 km N of Brenas, Puerto Rico
  3. 1.6 4 km N of Los Llanos, Puerto Rico
  4. 2.0 2 km N of Yaurel, Puerto Rico
  5. 2.7 22 km NNW of San Juan, Puerto Rico
  6. 3.0 6 km NW of Sabana, Puerto Rico
  7. 2.5 25 km N of Tierras Nuevas Poniente, Puerto Rico
  8. 2.6 17 km N of Tierras Nuevas Poniente, Puerto Rico
  9. 2.5 3 km NW of Barahona, Puerto Rico
  10. 2.4 47 km N of Brenas, Puerto Rico
  11. 2.8 7 km ENE of Arecibo, Puerto Rico
  12. 2.8 2 km NNW of Barceloneta, Puerto Rico
  13. 2.8 15 km NNE of Suárez, Puerto Rico
  14. 2.5 1 km WNW of Campanilla, Puerto Rico
  15. 2.8 6 km SE of G. L. Garcia, 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.