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Minor earthquake: M3.13 quake has struck near Arecibo in Puerto Rico


Earthquake location 18.984S, -66.5945WA minor earthquake magnitude 3.13 (ml/mb) has occurred on Friday, 58 kilometers (36 miles) from Arecibo in Puerto Rico. Exact location of event, depth 53 km, -66.5945° West, 18.984° North. The earthquake occurred at a depth of 53 km (33 miles). Global date and time of event UTC/GMT: 18/08/17 / 2017-08-18 06:45:15 / August 18, 2017 @ 6:45 am. All ids that are associated to the event: pr2017230005. Unique identifier: pr2017230005. The 3.13-magnitude earthquake has occurred at 02:45:15 / 2:45 am (local time epicenter).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Bayamón, Pájaros, Cataño. Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 77 km (48 miles) from San Juan (c. 418 100 pop), 80 km (50 miles) from Bayamón (c. 203 500 pop), 58 km (36 miles) from Arecibo (c. 49 300 pop), 74 km (46 miles) from Levittown (c. 29 800 pop), 64 km (40 miles) from Vega Baja (c. 29 300 pop).

In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days twenty-one and in the last 365 days two hundred and thirty-nine earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 58 km NNE of Arecibo, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.13 mb The magnitude for the event.
Longitude -66.5945° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.984° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 53 km Depth of the event in kilometers.
Place 58km 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 2017-08-18 06:45:15 Time when the event occurred. UTC/GMT
Updated 2017-08-18 08:34:27 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 151 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 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.657 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.52 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 259 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 pr2017230005 Id of event.
Event Code 2017230005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017230005, A comma-separated list of event ids that are associated to an event.

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