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Minor earthquake: M2.8 quake has struck near Arecibo in Puerto Rico



Earthquake location 18.9454S, -66.5907WA minor earthquake magnitude 2.8 (ml/mb) has struck on Wednesday, 53 kilometers (33 miles) from Arecibo in Puerto Rico. Global date and time of event UTC/GMT: 21/09/16 / 2016-09-21 04:04:28 / September 21, 2016 @ 4:04 am. Exact location, longitude -66.5907° West, latitude 18.9454° North, depth = 39 km. The 2.8-magnitude earthquake has occurred at 00:04:28 / 12:04 am (local time epicenter). The earthquake occurred at a depth of 39 km (24 miles). Event ids that are associated to the earthquake: pr16265001. Id of event: pr16265001.

Closest city/cities/towns to epicentrum/hypocenter was Utuado, Bayamón, Pájaros (min 5000 pop). The epicenter was 74 km (46 miles) from San Juan (c. 418 100 pop), 76 km (47 miles) from Bayamón (c. 203 500 pop), 54 km (34 miles) from Arecibo (c. 49 300 pop), 70 km (43 miles) from Levittown (c. 29 800 pop), 60 km (37 miles) from Vega Baja (c. 29 300 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Every year there are an estimated 1,300,000 minor earthquakes in the world. 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.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 53 km NNE of Arecibo, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -66.5907° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9454° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 39 km Depth of the event in kilometers.
Place 53km 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 04:04:28 Time when the event occurred. UTC/GMT
Updated 2016-09-21 09:32:52 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 121 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 0.61534597 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.43 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 pr16265001 Id of event.
Event Code 16265001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16265001, A comma-separated list of event ids that are associated to an event.

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