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Minor earthquake, 3.1 mag strikes near Brenas in Puerto Rico


Earthquake location 19.0986S, -66.4135WA minor earthquake magnitude 3.1 (ml/mb) strikes 70 kilometers (43 miles) from Brenas in Puerto Rico on Monday. The temblor was detected at 01:37:16 / 1:37 am (local time epicenter). Global date and time of event UTC/GMT: 31/08/15 / 2015-08-31 05:37:16 / August 31, 2015 @ 5:37 am. All ids that are associated to the event: pr15243002. Unique identifier: pr15243002. Exact location of event, longitude -66.4135 West, latitude 19.0986 North, depth = 27 km. The earthquake was roughly at a depth of 27 km (17 miles).

Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). The epicenter was 77 km (48 miles) from San Juan (c. 418 100 pop), 77 km (48 miles) from Arecibo (c. 49 300 pop), 76 km (47 miles) from Levittown (c. 29 800 pop), 73 km (45 miles) from Vega Baja (c. 29 300 pop), 79 km (49 miles) from Cataño (c. 28 100 pop). Closest city/cities/towns to epicentrum/hypocenter was Candelaria, Cataño, Candelaria Arenas (min 5000 pop).

Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been three, in the last 10 days fifteen, in the past 30 days one hundred and seventeen and in the last 365 days four hundred and sixteen earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 70 km N of Brenas, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -66.4135° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0986° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 27 km Depth of the event in kilometers.
Place 70km N of Brenas, 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 2015-08-31 05:37:16 Time when the event occurred. UTC/GMT
Updated 2015-08-31 05:56:04 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 148 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 10 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.81297533 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.18 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 262.8 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 pr15243002 Id of event.
Event Code 15243002 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15243002, A comma-separated list of event ids that are associated to an event.

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