QuakeIndex

Earthquake · reviewed by a seismologist

M 3.9md

Earthquake near Esperanza, PR

No earthquake was likely felt in Esperanza in the 24 hours to 4:27 pm AST (20:27 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 3.9 earthquake was recorded 7 km (4 mi) southwest of Esperanza, PR, at 2:29 pm AST on 10 November 2019 (18:29 UTC), 10 km deep. 11 people have reported feeling it to USGS.

USGS: 6 km SW of Esperanza, Puerto Rico

71 km (44 mi) SE of San Juan, PR · 60 km (37 mi) ESE of Caguas, PR

2:29 pm AST, Nov 10, 2019 · · 10 km deep · released about 11 tons of TNT

Every earthquake near Esperanza Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Vieques Municipio 12 kmCeiba Municipio 26 kmNaguabo Municipio 30 kmHumacao Municipio 31 kmYabucoa Municipio 37 kmCulebra Municipio 38 kmFajardo Municipio 38 kmLas Piedras Municipio 41 kmMaunabo Municipio 41 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
2:29 pm AST on 10 November 2019 ()
Where
7 km (4 mi) southwest of Esperanza, PR · earthquakes near Esperanza
Magnitude
M 3.9 (md)
Depth
10 km below the surface
Felt
11 reports · strongest reported intensity IV
Nearest
Vieques Municipio, 12 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2475 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, people at rest would likely notice it out to about 89 km (55 mi) from the epicentre. In Esperanza, 7 km away, the estimate is intensity IV (light). 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: Esperanza 7 km, intensity IV · Isabel Segunda 13 km, intensity III · Aguas Claras 27 km, intensity III · Fajardo 34 km, intensity III · Humacao 35 km, intensity III · Culebra 36 km, intensity III · Emajagua 40 km, intensity III · Luquillo 42 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 11 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.9 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 16,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 710× the energy of this one
  3. Magna, Utah 2020 M 5.7 500× the energy of this one
  4. This earthquake M 3.9 about 11 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 22× more

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 11 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 18.0490, -65.5095. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Vieques Municipio, PR 12 km (7 mi) NE earthquakes near Vieques Municipio
Ceiba Municipio, PR 26 km (16 mi) NNW earthquakes near Ceiba Municipio
Naguabo Municipio, PR 30 km (19 mi) NW earthquakes near Naguabo Municipio
Humacao Municipio, PR 31 km (19 mi) WNW earthquakes near Humacao Municipio
Yabucoa Municipio, PR 37 km (23 mi) W earthquakes near Yabucoa Municipio
Culebra Municipio, PR 38 km (23 mi) NE earthquakes near Culebra Municipio

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

Aftershocks so far

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

  1. 2.2 5 km ESE of Aguas Claras, Puerto Rico
  2. 2.3 25 km SE of Emajagua, Puerto Rico
  3. 1.8 3 km E of El Negro, Puerto Rico
  4. 2.8 22 km SSW of Esperanza, Puerto Rico
  5. 2.7 26 km SE of El Negro, Puerto Rico
  6. 2.9 24 km S of Esperanza, Puerto Rico
  7. 3.4 14 km S of Esperanza, Puerto Rico
  8. 2.9 28 km SSW of Esperanza, Puerto Rico
  9. 2.9 33 km SE of Emajagua, Puerto Rico
  10. 3.1 27 km SE of Emajagua, Puerto Rico
  11. 2.5 34 km SSE of Emajagua, Puerto Rico
  12. 3.3 26 km SE of El Negro, Puerto Rico
  13. 2.2 1 km E of Candelero Arriba, Puerto Rico
  14. 2.8 25 km SE of Emajagua, Puerto Rico
  15. 3.0 13 km NNW of Isabel Segunda, 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.