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Earthquake off the coast of San Juan, Puerto Rico - August 18, 2017

Are you one of the people who felt the shaking of this earthquake. If Yes, please let us know what you experienced by filling up the I FELT IT form behind the earthquake or at the bottom of this page. Thank you for your cooperation.
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Update 20:28 UTC: Based on the present earthquake parameters (Magnitude, Depth, Population, etc) and our experience with earthquake damage impact, earthquake-Report.com does not expect any damage from this earthquake as the strength of the earthquake is not powerful enough in relation with the distance to the nearest coastal villages.

Update 20:28 UTC: Seismogram as recorded in a seismological station in Cayey

Brenas, Puerto Rico, 50.1 km (31.1 mi) NPopulation: 2,104
Vega Baja, Puerto Rico, 52.0 km (32.3 mi) NPopulation: 29,325
Barceloneta, Puerto Rico, 52.7 km (32.8 mi) NNEPopulation: 22,322
Dorado, Puerto Rico, 52.8 km (32.8 mi) NNWPopulation: 13,117
Manatí, Puerto Rico, 54.3 km (33.7 mi) NPopulation: 16,092

Most important Earthquake Data:

Magnitude : 4.9

Local Time (conversion only below land) : Unknown

GMT/UTC Time : 2017-08-18 20:13:00

Depth (Hypocenter) : 28.9 km

Depth and Magnitude updates in the list below.

Share your earthquake experience (I Have Felt It) with our readers.
Click on the "I Felt It" button behind the corresponding earthquake. Your earthquake experience is not only important for science, but also for people in the area as well as our global readership.

SRC Location UTC Date/time M D INFO
EMSC Puerto Rico Region Aug 18 20:13 4.9 30 MAP I Felt It
  • Ciales - ...
  • Carolina - It was really short (maybe a second), but felt strong.
  • Naguabo - It didn't last long.
  • San juan - Lasted for 3 or 4 seconds side to side.
  • utuado - Light shaking
  • Bayamón - Sentí que duró 15 segundos aunque pareció un minuto.
  • Сан Жуан - Приблизительно секунды 3
  • camuy - aaprox 10sec
  • Yabucoa - Escuché un sumbido suave y un leve temblor como de 1 y medio segundo recostada leyendo en la cama. De hecho, el zumbido y el leve movimiento fue lo que me hizo levantarme. Segundos después mi hija me llamò al celular para preguntarme si había sentido el temblor.
  • Jayuya - Strong shaking
  • MANATI - EN LA OFICINA TEMBLO LA COMPUTADORA Y TODO SOBRE EL ESCRITORIO SE MOVIO DE UN LADO A OTRO.
  • Cupey, San Juan - I was in class and it lasted about 15-20 seconds but felt like a minute!
  • Santurce - Estaba estacionada y sentí una fuerte sacudida por varios segundos. Pensé que era un fuerte viento, luego me enteré que sí, que fue un temblor. Es hora de buscar de Dios, pues lo que viene para la isla será muy fuerte.
    		•
    USGS Dorado, Puerto Rico Aug 18 20:13 4.9 28 MAP I Felt It INFO
    USGS Tierras Nuevas Poniente, Puerto Rico Aug 18 20:12 4.8 30 MAP I Felt It
    GEOFON Puerto Rico Region Aug 18 20:12 4.6 26 MAP I Felt It
    USGS Guanica, Puerto Rico Aug 18 19:06 2.9 5 MAP I Felt It
    USGS San Antonio, Puerto Rico Aug 18 09:52 2.8 8 MAP I Felt It
    USGS San Antonio, Puerto Rico Aug 18 09:50 2.8 8 MAP I Felt It
    USGS Luquillo, Puerto Rico Aug 18 07:49 2.8 41 MAP I Felt It
    USGS Arecibo, Puerto Rico Aug 18 06:45 3.1 53 MAP I Felt It INFO
  • Aguadilla - Estaba tendiendo ropa afuera de la casa y escuché un suave trueno y la puerta de la cocina se estremeció y crujió. Todo duró como tres segundos.
    		•
    USGS Sabana Eneas, Puerto Rico Aug 18 03:06 2.6 15 MAP I Felt It
    USGS Hatillo, Puerto Rico Aug 18 01:36 3.0 54 MAP I Felt It INFO

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    SHARE YOUR EARTHQUAKE EXPERIENCE WITH US

    Enter Email (not compulsory)
    Country where you felt the earthquake *
    City/Village where you felt the earthquake *
    Street or suburb (area) where you felt the earthquake
    Latitude (area) where you felt the earthquake
    Longitude (area) where you felt the earthquake
    Shaking Strength *
    MMI II (Very weak shaking) ?
    People :
    Felt by persons at rest, on upper floors or favorably placed.
    MMI III (Weak shaking) ?
    People :
    Felt indoors; hanging objects may swing, vibration similar to passing of light trucks, duration may be estimated, may not be recognized as an earthquake.
    MMI IV (Light shaking) ?
    People :
    Generally noticed indoors but not outside. Light sleepers may be awakened. Vibration may be likened to the passing of heavy traffic, or to the jolt of a heavy object falling or striking the building.
    Fittings :
    Doors and windows rattle. Glassware and crockery rattle. Liquids in open vessels may be slightly disturbed. Standing motorcars may rock.
    Structures :
    Walls and frames of buildings, and partitions and suspended ceilings in commercial buildings, may be heard to creak.
    MMI V (Moderate shaking) ?
    People :
    Generally felt outside, and by almost everyone indoors. Most sleepers awakened. A few people alarmed.
    Fittings :
    Small unstable objects are displaced or upset. Some glassware and crockery may be broken. Hanging pictures knock against the wall. Open doors may swing. Cupboard doors secured by magnetic catches may open. Pendulum clocks stop, start, or change rate.
    Structures :
    Some large display windows cracked. A few earthenware toilet fixtures cracked.
    MMI VI (Strong shaking) ?
    People Felt by all. People and animals alarmed. Many run outside. Difficulty experienced in walking steadily.
    Fittings :
    Objects fall from shelves. Pictures fall from walls. Some furniture moved on smooth floors, some unsecured free-standing fireplaces moved. Glassware and crockery broken. Very unstable furniture overturned. Small church and school bells ring. Appliances move on bench or table tops. Filing cabinets or "easy glide" drawers may open (or shut).
    Structures :
    Slight damage to buildings with low standard. Some stucco or cement plaster falls. Large display windows broken. Damage to a few weak domestic chimneys, some may fall.
    Environment :
    Trees and bushes shake, or are heard to rustle. Loose material may be dislodged from sloping ground, e.g. existing slides, talus slopes, shingle slides.
    MMI VII (Very strong shaking) ?
    People
    General alarm. Difficulty experienced in standing. Noticed by motorcar drivers who may stop.
    Fittings :
    Large bells ring. Furniture moves on smooth floors, may move on carpeted floors. Substantial damage to fragile contents of buildings.
    Structures :
    Unreinforced stone and brick walls cracked. Low standard buildings cracked with some minor masonry falls. A few instances of damage to buildings of ordinary workmanship. Unbraced parapets, unbraced brick gables, and architectural ornaments fall. Roofing tiles, especially ridge tiles may be dislodged. Many unreinforced domestic chimneys damaged, often falling from roof-line. Water tanks Type I burst. A few instances of damage to brick veneers and plaster or cement-based linings. Unrestrained water cylinders (hot-water cylinders) may move and leak. Some common windows cracked. Suspended ceilings damaged.
    Environment :
    Water made turbid by stirred up mud. Small slides such as falls of sand and gravel banks, and small rock-falls from steep slopes and cuttings. I


    This post first appeared on Earthquake-Report.com, please read the originial post: here

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    Earthquake off the coast of San Juan, Puerto Rico - August 18, 2017

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