QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

Earthquake near G. L. Garcia, PR

No earthquake was likely felt in G. L. Garcia in the 24 hours to 8:45 pm AST (00:45 UTC). The last one was M 3.3, 44 km (27 mi) SW, at 8:40 am AST on 1 November 2026, estimated intensity II (weak) in town. Every earthquake near G. L. Garcia

This page: a magnitude 1.9 earthquake was recorded 5 km (3 mi) east-northeast of G. L. Garcia, PR, at 8:11 am AST on 14 June 2018 (12:11 UTC), 13 km deep.

USGS: 5 km ENE of G. L. Garcia, Puerto Rico

10 km (6 mi) SSW of Caguas, PR

8:11 am AST, Jun 14, 2018 · · 13 km deep · released about 19 lb of TNT

Every earthquake near G. L. Garcia Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caguas Municipio 7 kmSan Lorenzo Municipio 9 kmCayey Municipio 11 kmCidra Municipio 11 kmAguas Buenas Municipio 14 kmGurabo Municipio 16 kmJuncos Municipio 18 kmPatillas Municipio 18 kmComerío 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
8:11 am AST on 14 June 2018 ()
Where
5 km (3 mi) east-northeast of G. L. Garcia, PR · earthquakes near G. L. Garcia
Magnitude
M 1.9 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Caguas Municipio, 7 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3072 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 6 km (4 mi) from the epicentre. In G. L. Garcia, 5 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: Jagual, Caguas, Santa Clara, Sumidero, San Lorenzo, Cidra.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 580,000× the energy of this one
  3. Around the size people start to feel M 3.0 51× the energy of this one
  4. This earthquake M 1.9 about 19 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 13,000 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 · 15 km NNW of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 49 km NW 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 18.1476, -66.0583. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Caguas Municipio, PR 7 km (4 mi) N earthquakes near Caguas Municipio
San Lorenzo Municipio, PR 9 km (5 mi) E earthquakes near San Lorenzo Municipio
Cayey Municipio, PR 11 km (7 mi) WSW earthquakes near Cayey Municipio
Cidra Municipio, PR 11 km (7 mi) WNW earthquakes near Cidra Municipio
Aguas Buenas Municipio, PR 14 km (9 mi) NNW earthquakes near Aguas Buenas Municipio
Gurabo Municipio, PR 16 km (10 mi) NNE earthquakes near Gurabo Municipio

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

Aftershocks so far

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

  1. 1.9 5 km SW of Playita Cortada, Puerto Rico
  2. 2.8 1 km NW of Naranjito, Puerto Rico
  3. 2.5 2 km ESE of Vega Alta, Puerto Rico
  4. 1.7 8 km S of Villalba, Puerto Rico
  5. 3.0 4 km ESE of Bayamon, Puerto Rico
  6. 2.6 3 km SSE of Guaynabo, Puerto Rico
  7. 2.3 9 km SSW of Emajagua, Puerto Rico
  8. 2.0 11 km S of Emajagua, Puerto Rico
  9. 2.5 10 km SSW of Emajagua, Puerto Rico
  10. 2.8 3 km NNE of Naranjito, Puerto Rico
  11. 2.0 1 km NE of Sabana Seca, Puerto Rico
  12. 2.9 5 km SE of Cataño, Puerto Rico
  13. 2.1 7 km E of Naranjito, Puerto Rico
  14. 1.5 2 km N of Coquí, Puerto Rico
  15. 2.2 2 km NNE of Coquí, 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.