QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near El Negro, PR

No earthquake was likely felt in El Negro in the 24 hours to 4:42 pm AST (20:42 UTC). The last one was M 2.2, 7 km (5 mi) SSE, at 2:59 pm AST on 4 November 2026, estimated intensity II (weak) in town. Every earthquake near El Negro

This page: a magnitude 2.5 earthquake was recorded 6 km (4 mi) southeast of El Negro, PR, at 2:51 am AST on 18 June 2024 (06:51 UTC), 16 km deep.

USGS: 5 km SE of El Negro, Puerto Rico

52 km (33 mi) SSE of San Juan, PR · 35 km (22 mi) SE of Caguas, PR

2:51 am AST, Jun 18, 2024 · · 16 km deep · released about 160 lb of TNT

Every earthquake near El Negro Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Maunabo Municipio 8 kmYabucoa Municipio 8 kmHumacao Municipio 16 kmPatillas Municipio 18 kmLas Piedras Municipio 22 kmSan Lorenzo Municipio 24 kmArroyo Municipio 24 kmNaguabo Municipio 25 kmJuncos Municipio 27 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
2:51 am AST on 18 June 2024 ()
Where
6 km (4 mi) southeast of El Negro, PR · earthquakes near El Negro
Magnitude
M 2.5 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Maunabo Municipio, 8 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 877 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 El Negro, 6 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: Emajagua 7 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 95,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 68,000× the energy of this one
  3. Around the size people start to feel M 3.0 6× the energy of this one
  4. This earthquake M 2.5 about 160 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 4.8 on 2021-10-08 — about 3,000 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 45 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 17.9955, -65.8172. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Maunabo Municipio, PR 8 km (5 mi) W earthquakes near Maunabo Municipio
Yabucoa Municipio, PR 8 km (5 mi) NNW earthquakes near Yabucoa Municipio
Humacao Municipio, PR 16 km (10 mi) NNE earthquakes near Humacao Municipio
Patillas Municipio, PR 18 km (11 mi) W earthquakes near Patillas Municipio
Las Piedras Municipio, PR 22 km (14 mi) NNW earthquakes near Las Piedras Municipio
San Lorenzo Municipio, PR 24 km (15 mi) NW earthquakes near San Lorenzo Municipio

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

Aftershocks so far

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

  1. 2.5 18 km S of Lamboglia, Puerto Rico
  2. 3.0 18 km S of Lamboglia, Puerto Rico
  3. 2.7 29 km SSW of Esperanza, Puerto Rico
  4. 2.1 24 km S of Lamboglia, Puerto Rico
  5. 2.2 2 km E of Cayey, Puerto Rico
  6. 2.0 4 km NNW of Jobos, Puerto Rico
  7. 2.3 11 km SSE of Arroyo, Puerto Rico
  8. 2.5 5 km NNW of Jagual, Puerto Rico
  9. 1.8 4 km NNW of Yaurel, Puerto Rico
  10. 3.5 11 km SSE of Daguao, Puerto Rico
  11. 3.2 3 km SE of Bartolo, Puerto Rico
  12. 2.4 5 km SSE of Emajagua, Puerto Rico
  13. 2.8 28 km SE of El Negro, Puerto Rico
  14. 2.9 28 km SE of Emajagua, Puerto Rico
  15. 2.9 26 km SE of Emajagua, 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.