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Minor earthquake 3 mag, 56 km NNE of Arecibo, Puerto Rico



Earthquake location 18.9645S, -66.5915WA minor earthquake magnitude 3 (ml/mb) has occurred on Tuesday, 56 kilometers (35 miles) from Arecibo in Puerto Rico. The epicenter was at a depth of 43 km (27 miles). Exact time and date of earthquake 21/09/16 / 2016-09-21 03:43:48 / September 21, 2016 @ 3:43 am UTC/GMT. Exact location of event, depth 43 km, -66.5915° West, 18.9645° North. Id of earthquake: pr16265000. Event ids that are associated: pr16265000. The 3-magnitude earthquake was detected at 23:43:48 / 11:43 pm (local time epicenter).

Epicenter of the earthquake was 75 km (47 miles) from San Juan (c. 418 100 pop), 78 km (48 miles) from Bayamón (c. 203 500 pop), 56 km (35 miles) from Arecibo (c. 49 300 pop), 72 km (45 miles) from Levittown (c. 29 800 pop), 62 km (38 miles) from Vega Baja (c. 29 300 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Utuado, Bayamón, Pájaros. Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days eight, in the past 30 days thirteen and in the last 365 days two hundred and eleven earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 130,000 minor earthquakes in the world each year.

Did you feel it?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 56 km NNE of Arecibo, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -66.5915° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9645° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 43 km Depth of the event in kilometers.
Place 56km NNE of Arecibo, Puerto Rico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-09-21 03:43:48 Time when the event occurred. UTC/GMT
Updated 2016-09-21 09:31:46 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status REVIEWED Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 138 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pr The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pr, A comma-separated list of network contributors.
Number of Stations Used 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.63331228 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.51 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 280.8 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr16265000 Id of event.
Event Code 16265000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16265000, A comma-separated list of event ids that are associated to an event.

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