QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

Earthquake near Esperanza, PR

No earthquake was likely felt in Esperanza in the 24 hours to 9:34 am AST (13:34 UTC). The last one was M 2.9, 23 km (14 mi) SE, at 12:08 pm AST on 29 October 2026, estimated intensity II (weak) in town. Every earthquake near Esperanza

This page: a magnitude 1.9 earthquake was recorded 18 km (11 mi) south of Esperanza, PR, at 12:37 pm AST on 24 July 2019 (16:37 UTC), 4.0 km deep.

USGS: 17 km S of Esperanza, Puerto Rico

80 km (49 mi) SE of San Juan, PR

12:37 pm AST, Jul 24, 2019 · · 4.0 km deep · released about 24 lb of TNT

Every earthquake near Esperanza Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Vieques Municipio 22 kmCeiba Municipio 37 kmHumacao Municipio 38 kmNaguabo Municipio 40 kmYabucoa Municipio 41 kmMaunabo Municipio 43 kmCulebra Municipio 47 kmLas Piedras Municipio 49 kmFajardo Municipio 51 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
12:37 pm AST on 24 July 2019 ()
Where
18 km (11 mi) south of Esperanza, PR · earthquakes near Esperanza
Magnitude
M 1.9 (md)
Depth
4.0 km below the surface
Felt
no reports yet
Nearest
Vieques Municipio, 22 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2667 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 15 km (9 mi) from the epicentre. In Esperanza, 18 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: Isabel Segunda.

How big was it?

This earthquake released about 24 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 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 10,000 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

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 17.9391, -65.4925. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Vieques Municipio, PR 22 km (13 mi) NNE earthquakes near Vieques Municipio
Ceiba Municipio, PR 37 km (23 mi) NNW earthquakes near Ceiba Municipio
Humacao Municipio, PR 38 km (24 mi) NW earthquakes near Humacao Municipio
Naguabo Municipio, PR 40 km (25 mi) NW earthquakes near Naguabo Municipio
Yabucoa Municipio, PR 41 km (26 mi) WNW earthquakes near Yabucoa Municipio
Maunabo Municipio, PR 43 km (27 mi) W earthquakes near Maunabo Municipio

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

Aftershocks so far

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

  1. 3.4 3 km E of Esperanza, Puerto Rico
  2. 2.8 19 km SSE of Esperanza, Puerto Rico
  3. 1.7 9 km SE of Emajagua, Puerto Rico
  4. 2.3 2 km W of Humacao, Puerto Rico
  5. 2.7 22 km SE of Emajagua, Puerto Rico
  6. 2.7 18 km SSW of Esperanza, Puerto Rico
  7. 2.1 13 km WSW of Esperanza, Puerto Rico
  8. 3.0 29 km S of Esperanza, Puerto Rico
  9. 2.6 23 km SE of Emajagua, Puerto Rico
  10. 2.8 7 km SW of Esperanza, Puerto Rico
  11. 2.7 7 km W of Isabel Segunda, Puerto Rico
  12. 2.3 5 km SSE of El Negro, Puerto Rico
  13. 1.8 9 km S of Emajagua, Puerto Rico
  14. 2.2 2 km NNE of Emajagua, Puerto Rico
  15. 2.6 29 km SSE of Esperanza, 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.