QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Hatillo, PR

No earthquake was likely felt in Hatillo in the 24 hours to 12:51 pm AST (16:51 UTC). The last one was M 3.4, 40 km (25 mi) NW, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Hatillo

This page: a magnitude 1.6 earthquake was recorded 11 km (7 mi) north-northeast of Hatillo, PR, at 4:27 am AST on 16 June 2019 (08:27 UTC), 16 km deep.

USGS: 11 km NNE of Hatillo, Puerto Rico

80 km (50 mi) WNW of San Juan, PR · 16 km (10 mi) NNW of Arecibo, PR

4:27 am AST, Jun 16, 2019 · · 16 km deep · released about 7.6 lb of TNT

Every earthquake near Hatillo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 16 kmCamuy Municipio 17 kmQuebradillas Municipio 19 kmArecibo Municipio 21 kmIsabela Municipio 26 kmBarceloneta Municipio 28 kmSan Sebastián Municipio 34 kmFlorida Municipio 35 kmLares Municipio 35 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
4:27 am AST on 16 June 2019 ()
Where
11 km (7 mi) north-northeast of Hatillo, PR · earthquakes near Hatillo
Magnitude
M 1.6 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 16 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2705 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Hatillo, 11 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: Carrizales, Camuy, Corcovado, Arecibo, Rafael Gonzalez, Piedra Gorda.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 4.4 on 2018-12-09 — about 16,000 times the energy of this one.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.7 45 km N of San Antonio, Puerto Rico · 49 km NW of this epicentre
  2. 7.1 24 km NNW of San Antonio, Puerto Rico · 43 km WNW of this epicentre
  3. 6.3 6 km WNW of Aguadilla, Puerto Rico · 47 km WSW of this epicentre
  4. 6.1 15 km WNW of San Antonio, Puerto Rico · 46 km W of this epicentre
  5. 6.1 18 km NNW of San Antonio, Puerto Rico · 41 km W 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 18.5856, -66.7971. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hatillo Municipio, PR 16 km (10 mi) S earthquakes near Hatillo Municipio
Camuy Municipio, PR 17 km (11 mi) SSW earthquakes near Camuy Municipio
Quebradillas Municipio, PR 19 km (12 mi) SW earthquakes near Quebradillas Municipio
Arecibo Municipio, PR 21 km (13 mi) SE earthquakes near Arecibo Municipio
Isabela Municipio, PR 26 km (16 mi) WSW earthquakes near Isabela Municipio
Barceloneta Municipio, PR 28 km (18 mi) ESE earthquakes near Barceloneta Municipio

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

Aftershocks so far

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

  1. 1.5 7 km WSW of Las Marías, Puerto Rico
  2. 2.4 29 km NNE of Arecibo, Puerto Rico
  3. 2.0 0 km WNW of Maricao, Puerto Rico
  4. 2.1 0 km ENE of Sabana, Puerto Rico
  5. 2.2 7 km N of Jayuya, Puerto Rico
  6. 1.7 2 km SSE of Cayuco, Puerto Rico
  7. 2.3 3 km ENE of Espino, Puerto Rico
  8. 2.4 26 km N of Arecibo, Puerto Rico
  9. 2.5 5 km NNE of Isabela, Puerto Rico
  10. 1.9 6 km NW of Adjuntas, Puerto Rico
  11. 1.6 7 km ESE of Las Marías, Puerto Rico
  12. 2.5 35 km NNW of San Antonio, Puerto Rico
  13. 1.9 25 km NNE of Isabela, Puerto Rico
  14. 2.0 34 km N of Isabela, Puerto Rico
  15. 2.6 45 km N of Arecibo, 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.