QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

Earthquake near Mayagüez, PR

No earthquake was likely felt in Mayagüez in the 24 hours to 11:14 pm AST (03:14 UTC). The last one was M 2.9, 25 km (15 mi) SSE, at 3:17 am AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Mayagüez

This page: a magnitude 1.9 earthquake was recorded 26 km (16 mi) south-southeast of Mayagüez, PR, at 8:46 pm AST on 22 June 2019 (00:46 UTC), 7.0 km deep.

USGS: Puerto Rico region

26 km (16 mi) SSE of Mayagüez, PR · 119 km (74 mi) WSW of San Juan, PR

8:46 pm AST, Jun 22, 2019 · · 7.0 km deep · released about 20 lb of TNT

10 km30 km60 km120 km N Lajas Municipio 5 kmCabo Rojo Municipio 10 kmSan Germán Municipio 16 kmGuánica Municipio 18 kmHormigueros Municipio 18 kmSabana Grande Municipio 20 kmYauco Municipio 28 kmMaricao Municipio 28 kmLas Marías Municipio 31 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
8:46 pm AST on 22 June 2019 ()
Where
26 km (16 mi) south-southeast of Mayagüez, PR · earthquakes near Mayagüez
Magnitude
M 1.9 (md)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 5 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2699 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 13 km (8 mi) from the epicentre. In Mayagüez, 26 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.

Likely felt in: Pole Ojea 10 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 20 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 5.8 760,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 540,000× the energy of this one
  3. Around the size people start to feel M 3.0 48× the energy of this one
  4. This earthquake M 1.9 about 20 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 17.9726, -67.0913. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lajas Municipio, PR 5 km (3 mi) E earthquakes near Lajas Municipio
Cabo Rojo Municipio, PR 10 km (6 mi) WNW earthquakes near Cabo Rojo Municipio
San Germán Municipio, PR 16 km (10 mi) NNE earthquakes near San Germán Municipio
Guánica Municipio, PR 18 km (11 mi) E earthquakes near Guánica Municipio
Hormigueros Municipio, PR 18 km (11 mi) N earthquakes near Hormigueros Municipio
Sabana Grande Municipio, PR 20 km (12 mi) NE earthquakes near Sabana Grande Municipio

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

Aftershocks so far

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

  1. 2.7 14 km SW of La Playa, Puerto Rico
  2. 1.6 5 km ENE of Sabana Grande, Puerto Rico
  3. 2.5 26 km WSW of Stella, Puerto Rico
  4. 1.9 4 km S of Tallaboa, Puerto Rico
  5. 1.7 4 km WSW of Liborio Negron Torres, Puerto Rico
  6. 1.8 1 km ESE of Stella, Puerto Rico
  7. 2.0 43 km S of Pole Ojea, Puerto Rico
  8. 2.0 6 km NNE of Sabana Eneas, Puerto Rico
  9. 2.3 3 km ENE of Espino, Puerto Rico
  10. 1.9 8 km N of Yauco, Puerto Rico
  11. 1.5 22 km W of Pole Ojea, Puerto Rico
  12. 1.7 4 km WSW of Ponce, Puerto Rico
  13. 2.1 2 km E of Mayagüez, Puerto Rico
  14. 1.7 5 km NNE of Sabana Grande, Puerto Rico
  15. 1.8 4 km SSW of Añasco, 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

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